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Su L, Hsu CH, Lin H, Pereira VM. Charge Density Waves and the Hidden Nesting of Purple Bronze K_{0.9}Mo_{6}O_{17}. Phys Rev Lett 2017; 118:257601. [PMID: 28696739 DOI: 10.1103/physrevlett.118.257601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Indexed: 06/07/2023]
Abstract
We introduce the first multiorbital effective tight-binding model to describe the effect of electron-electron interactions in this system. Upon fixing all the effective hopping parameters in the normal state against an ab initio band structure, and with only the overall scale of the interactions as the sole adjustable parameter, we find that a self-consistent Hartree-Fock solution reproduces extremely well the experimental behavior of the charge density wave (CDW) order parameter in the full range 0<T<T_{c}, as well as the precise reciprocal space locations of the partial gap opening and Fermi arc development. The interaction strengths extracted from fitting to the experimental CDW gap are consistent with those derived from an independent Stoner-type analysis.
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Affiliation(s)
- Lei Su
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore 117546
| | - Chuang-Han Hsu
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore 117546
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542
| | - Hsin Lin
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore 117546
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542
| | - Vitor M Pereira
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore 117546
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542
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Hagmann JA, Le ST, Schneemeyer LF, Stroscio JA, Besara T, Sun J, Singh DJ, Siegrist T, Seiler DG, Richter CA. Interacting nanoscale magnetic superatom cluster arrays in molybdenum oxide bronzes. Nanoscale 2017; 9:7922-7929. [PMID: 28569301 DOI: 10.1039/c7nr01087g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we examine several reduced ternary molybdates in the family of yellow rare earth molybdenum bronzes produced by electrochemical synthesis with composition LnMo16O44. These compounds contain an array of electrically isolated but magnetically interacting multi-atom clusters with composition Mo8O36. These arrayed superatom clusters support a single hole shared among the eight molybdenum atoms in the unit, corresponding to a net spin moment of 1μB, and exhibit magnetic exchange between the units via the MoO4 tetrahedra (containing Mo6+ ions) and the LnO8 cubes (containing Ln3+ ions). The findings presented here expand on the physics of the unusual collective properties of multi-atom clusters and extend the discussion of such assemblages to the rich structural chemistry of molybdenum bronzes.
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Affiliation(s)
- Joseph A Hagmann
- Engineering Physics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
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Mou D, Sapkota A, Kung HH, Krapivin V, Wu Y, Kreyssig A, Zhou X, Goldman AI, Blumberg G, Flint R, Kaminski A. Discovery of an Unconventional Charge Density Wave at the Surface of K_{0.9}Mo_{6}O_{17}. Phys Rev Lett 2016; 116:196401. [PMID: 27232028 DOI: 10.1103/physrevlett.116.196401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 06/05/2023]
Abstract
We use angle resolved photoemission spectroscopy, Raman spectroscopy, low energy electron diffraction, and x-ray scattering to reveal an unusual electronically mediated charge density wave (CDW) in K_{0.9}Mo_{6}O_{17}. Not only does K_{0.9}Mo_{6}O_{17} lack signatures of electron-phonon coupling, but it also hosts an extraordinary surface CDW, with T_{S_CDW}=220 K nearly twice that of the bulk CDW, T_{B_CDW}=115 K. While the bulk CDW has a BCS-like gap of 12 meV, the surface gap is 10 times larger and well in the strong coupling regime. Strong coupling behavior combined with the absence of signatures of strong electron-phonon coupling indicates that the CDW is likely mediated by electronic interactions enhanced by low dimensionality.
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Affiliation(s)
- Daixiang Mou
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - A Sapkota
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - H-H Kung
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Viktor Krapivin
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Yun Wu
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - A Kreyssig
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Xingjiang Zhou
- National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - A I Goldman
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - G Blumberg
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
- National Institute of Chemical Physics and Biophysics, 12618 Tallinn, Estonia
| | - Rebecca Flint
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Adam Kaminski
- Division of Materials Science and Engineering, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
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Schneemeyer L, Siegrist T, Besara T, Lundberg M, Sun J, Singh D. A family of rare earth molybdenum bronzes: Oxides consisting of periodic arrays of interacting magnetic units. J SOLID STATE CHEM 2015; 227:178-85. [DOI: 10.1016/j.jssc.2015.03.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Laurinavichyute VK, Vassiliev SY, Filatov AY, Levin EE, Tsirlina GA. Electrochemistry of MoO3–K2MoO4 melts: a chance to control the nature of reduced molybdenum oxides. J Solid State Electrochem 2012. [DOI: 10.1007/s10008-012-1870-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
The concept of hidden Fermi surface nesting was introduced to explain the general observation that certain low-dimensional metals with several partially filled bands exhibit charge density wave (CDW) instabilities, although their individual Fermi surfaces do not reveal the observed nesting vectors. This concept was explored by considering the Fermi surfaces of the purple bronze AMo(6)O(17) (A = sodium or potassium) and then observing the CDW spatial fluctuations expected from its hidden nesting on the basis of diffuse x-ray scattering experiments. The concept of hidden Fermi surface nesting is essential for understanding the electronic instabilities of low-dimensional metals.
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Escribe-filippini C, Konaté K, Marcus J, Schlenker C, Almairac R, Ayroles R, Roucau C. Evidence for a charge-density-wave instability in the purple bronze K0·9Mo6O17. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/13642818408238857] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C. Escribe-filippini
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides , CNRS, BP 166, 38042 , Grenoble , Cédex , France
| | - K. Konaté
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides , CNRS, BP 166, 38042 , Grenoble , Cédex , France
| | - J. Marcus
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides , CNRS, BP 166, 38042 , Grenoble , Cédex , France
| | - C. Schlenker
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides , CNRS, BP 166, 38042 , Grenoble , Cédex , France
| | - R. Almairac
- b Groupe de Dynamiques des Phases Condensées, USTL , Place Eugène Bataillon, 34060 , Montpellier , Cédex , France
| | - R. Ayroles
- c Laboratoire d'Optique Electronique , CNRS, BP 434731055, Toulouse , Cédex , France
| | - C. Roucau
- c Laboratoire d'Optique Electronique , CNRS, BP 434731055, Toulouse , Cédex , France
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Schlenker C, Dumas J, Escribe-filippini C, Guyot H, Marcus J, Fourcaudot G. Charge-density-wave instabilities in the low-dimensional molybdenum bronzes and oxides. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/13642818508240627] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C. Schlenker
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
| | - J. Dumas
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
| | - C. Escribe-filippini
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
| | - H. Guyot
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
| | - J. Marcus
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
| | - G. Fourcaudot
- a Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , BP 166, 38042 , Grenoble , France
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Tian L, Chen L, Liu L, Lu N, Xu H. Fabrication of a novel LixMoOy film modified electrode and its application as an electrochemical sensor of iodate. Anal Bioanal Chem 2005; 381:769-74. [PMID: 15688153 DOI: 10.1007/s00216-004-2940-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2004] [Revised: 10/18/2004] [Accepted: 10/25/2004] [Indexed: 10/25/2022]
Abstract
A novel organic gel film modified electrode was simply and conveniently fabricated by casting Li(x)MoOy and polypropylene carbonate (PPC) onto the surface of a gold electrode. The cyclic voltammetry and amperometry studies demonstrated that the Li(x)MoOy film modified electrode has a high stability and a good electrocatalytic activity for the reduction of iodate. In amperometry, a good linear relationship between the steady current and the concentration of iodate was obtained in the range from 3x10(-7) to 1x10(-4) mol L-1 with a correlation coefficient of 0.9997 and a detection limit of 1x10(-7) mol L-1.
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Affiliation(s)
- Li Tian
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
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Gieck C, Derstroff V, Block T, Felser C, Regelsky G, Jepsen O, Ksenofontov V, Gütlich P, Eckert H, Tremel W. An Inorganic Double Helix Sheathing Alkali Metal Cations: ANb2P2S12(A=K, Rb, Cs), A Series of Thiophosphates Close to the Metal-Nonmetal Boundary-Chalcogenide Analogues of Transition-Metal Phosphate Bronzes? Chemistry 2004; 10:382-91. [PMID: 14735507 DOI: 10.1002/chem.200103504] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The new quaternary niobium thiophosphates ANb(2)P(2)S(12) (A=K, Rb, Cs) have been prepared and characterized. The title compounds were synthesized by reacting Nb metal, A(2)S, P(2)S(5), and S at 600-700 degrees C in evacuated silica tubes. They crystallize as "stuffed" variants of the tetragonal TaPS(6) structure type in the tetragonal space group I$\bar 4$2d with eight formula units per unit cell and lattice constants a=15.923(2) and c=13.238(3) A for CsNb(2)P(2)S(12), a=15.887(3) and c=13.132(3) A for RbNb(2)P(2)S(12), and a=15.850(2) and c=13.119(3) A for KNb(2)P(2)S(12). Their structures are based on double helices formed from interpenetrating, noninteracting spiral chains of binuclear [Nb(2)S(12)] cluster units and [PS(4)] thiophosphate groups. The cavities and tunnels, which are formed by the helical chains, are filled with A(+) ions. Temperature-dependent conductivity studies reveal thermally activated electrical transport behavior. This result is consistent with the observation of a temperature-dependent contribution to the (31)P MAS-NMR shift, suggesting that the delocalized s-electron spin density increases with increasing temperature. These findings are supported by the results of tight-binding band structure calculations which reveal that the unusual electrical transport behavior of ANb(2)P(2)S(12) is a consequence of the structure symmetry. Therefore, CsNb(2)P(2)S(12) may be considered a chalcogenide analogue of metal phosphate bronzes.
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Affiliation(s)
- Christine Gieck
- Institut für Anorganische Chemie und Analytische Chemie der Johannes Gutenberg-Universität, Duesbergweg 10-14, 55099 Mainz, Germany
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Guyot H, Escribe-Filippini C, Fourcaudot G, Konate K, Schlenker C. Charge density wave instabilities in the quasi-two-dimensional metal η-Mo4O11. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/16/36/003] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sato M, Nakao K, Hoshino S. Anomalies in resistivity and magnetic susceptibility in low-dimensional conductors, Mo8O23and γMo4O11. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/17/30/002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sato M, Fujishita H, Sato S, Hoshino S. Neutron inelastic scattering and X-ray structural study of the charge-density-wave state in K0.3MoO3. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/18/13/007] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Guyot H, Schlenker C, Pouget JP, Ayroles R, Roucau C. Evidence for an incommensurate charge density wave instability in η-Mo4O11. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/18/23/007] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ozawa TC, Pantoja R, Axtell EA, Kauzlarich SM, Greedan JE, Bieringer M, Richardson JW. Powder Neutron Diffraction Studies of Na2Ti2Sb2O and Its Structure–Property Relationships. J SOLID STATE CHEM 2000; 153:275-81. [DOI: 10.1006/jssc.2000.8758] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Teweldemedhin ZS, Ramanujachary KV, Greenblatt M. Anomalous electrical and magnetic behavior in (PO2)4(WO3)2m (m=4). Phys Rev B Condens Matter 1992; 46:7897-7900. [PMID: 10002532 DOI: 10.1103/physrevb.46.7897] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Surendranath K, Bansal C, Greenblatt M, McCarroll WH. Thermopower behavior in La2Mo2O7: A possible charge-density-wave system with partial Fermi-surface nesting. Phys Rev B Condens Matter 1989; 40:9312-9314. [PMID: 9991427 DOI: 10.1103/physrevb.40.9312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Schlenker C, Dumas J, Escribe-filippini C, Guyot H. Charge Density Wave Instabilities and Transport Properties of the Low Dimensional Molybdenum Bronzes and Oxides. In: Schlenker C, editor. Low-Dimensional Electronic Properties of Molybdenum Bronzes and Oxides. Dordrecht: Springer Netherlands; 1990. pp. 159-257. [DOI: 10.1007/978-94-009-0447-7_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Collins B, Ramanujachary K, Greenblatt M, McCarroll W, McNally P, Waszczak J. Substitutional studies on the anisotropic, semiconducting, molybdenum bronze, Li0.33MoO3. J SOLID STATE CHEM 1988. [DOI: 10.1016/0022-4596(88)90225-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Degiorgi L, Wachter P, Greenblatt M, McCarroll WH, Ramanujachary KV, Marcus J, Schlenker C. Optical investigation of quasi-one- and two-dimensional systems A0.9Mo. Phys Rev B Condens Matter 1988; 38:5821-5826. [PMID: 9947041 DOI: 10.1103/physrevb.38.5821] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Schlenker C, Schwenk H, Escribe-filippini C, Marcus J. Superconducting properties of the low dimensional purple bronze Li0.9Mo6O17. ACTA ACUST UNITED AC 1985; 135:511-4. [DOI: 10.1016/0378-4363(85)90542-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Greenblatt M, Ramanujachary K, McCarroll W, Neifeld R, Waszczak J. Quasi-two-dimensional electronic properties of the sodium molybdenum bronze, Na0.9Mo6O17. J SOLID STATE CHEM 1985. [DOI: 10.1016/0022-4596(85)90312-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nair K, Wang E, Greenblatt M. Single-crystal synthesis of low-valency molybdenum compounds by slow cooling of electrolyzed Li2MoO4MoO3 melts. J SOLID STATE CHEM 1984. [DOI: 10.1016/0022-4596(84)90264-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Schneemeyer L, Spengler S, Di Salvo F, Waszczak J, Rice C. Electrochemical crystal growth in the cesium molybdate-molybdenum trioxide system. J SOLID STATE CHEM 1984. [DOI: 10.1016/0022-4596(84)90261-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vincent H, Ghedira M, Marcus J, Mercier J, Schlenker C. Structure cristalline d'un conducteur métallique bidimensionnel: Le bronze violet de potassium et molybdene K0.9Mo6O17. J SOLID STATE CHEM 1983. [DOI: 10.1016/0022-4596(83)90050-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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