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Hardness and Elastic Modulus Measurements in CdTe and ZnTe Thin Film and Bulk Samples and ZnTe-CdTe Superlattices. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-130-123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractHardness and modulus values of bulk and epilayer ZnTe and CdTe samples and of ZnTe-CdTe superlattices are reported. Both hardness and Young's modulus values increase with increasing ZnTe content in the ZnCdTe samples. Alloying effects and strains in the superlattice structure are proposed to explain the strengthening.
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Abstract
ABSTRACTIn this article, we review the recent progress on GaAs MOSFET's using in-situ MBE-grown Ga2O3(Gd2O3) as the gate dielectric. Both depletion-mode (D-mode) and inversion-mode (I-mode) GaAs MOSFET's with negligible drain current drift and hysteresis are demostrated. The absence of drain current drift and hysteresis indicates that the excellent stability of the oxide and low oxide/GaAs interface state density have been achieved. The drain current density and transconductance are about one order of magnitude higher than the best previous reported data in the literature for an inversion-mode GaAs MOSFET. Excellent high frequency and power performances were also measured from the depletion-mode devices. These improvements are attributed to the excellent Ga2O3(Ga2O3) oxide properties and novel processing techniques.
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Multiple field-induced phase transitions in the geometrically frustrated dipolar magnet: Gd(2) Ti(2)O(7). PHYSICAL REVIEW LETTERS 2002; 89:067202. [PMID: 12190608 DOI: 10.1103/physrevlett.89.067202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2001] [Indexed: 05/23/2023]
Abstract
Field-driven phase transitions generally arise from competition between Zeeman energy and exchange or crystal-field anisotropy. Here we present the phase diagram of a frustrated pyrochlore magnet Gd(2)Ti(2)O(7), where crystal-field splitting is small compared to the dipolar energy. We find good agreement between zero-temperature critical fields and those obtained from a mean-field model. Here, dipolar interactions couple real space and spin space, so the transitions in Gd(2)Ti(2)O(7) arise from field-induced "cooperative anisotropy," reflecting the broken spatial symmetries of the pyrochlore lattice.
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Photoemission study of Ni borocarbides: Superconducting YNi2B2C and nonsuperconducting LaNi2B2C. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:507-514. [PMID: 9984288 DOI: 10.1103/physrevb.54.507] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Nature of the magnetic order in superconducting and nonsuperconducting HoNi2-xCoxB2C. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:802-808. [PMID: 9983036 DOI: 10.1103/physrevb.53.802] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Mechanism for the metal-insulator transition in Sr2Ir1-xRuxO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:17184-17187. [PMID: 9978732 DOI: 10.1103/physrevb.51.17184] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Electronic structure of RNi2B2C (R=rare earth) from x-ray-absorption spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:16159-16163. [PMID: 9978598 DOI: 10.1103/physrevb.51.16159] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Pressure effects and specific heat in superconducting HoNi2B2C. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:12644-12648. [PMID: 9978035 DOI: 10.1103/physrevb.51.12644] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Magnetic and nonmagnetic Ce in the borocarbides. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:12829-12832. [PMID: 9978065 DOI: 10.1103/physrevb.51.12829] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Neutron-powder-diffraction study of the nuclear and magnetic structures of the antiferromagnetic superconductor HoNi2B2C. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3701-3708. [PMID: 9979186 DOI: 10.1103/physrevb.51.3701] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Observation of oscillatory magnetic order in the antiferromagnetic superconductor HoNi2B2C. PHYSICAL REVIEW LETTERS 1994; 73:2756-2759. [PMID: 10057184 DOI: 10.1103/physrevlett.73.2756] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Elementary physical properties and crystal structures of LaRh2B2C and LaIr2B2C. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:12966-12968. [PMID: 9975466 DOI: 10.1103/physrevb.50.12966] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Photoemission and inverse-photoemission study of superconducting YNi2B2C: Effects of electron-electron and electron-phonon interactions. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:9660-9663. [PMID: 9975037 DOI: 10.1103/physrevb.50.9660] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Electron density of states in the borocarbide intermetallic superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:4216-4219. [PMID: 9976713 DOI: 10.1103/physrevb.50.4216] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Competition between magnetism and superconductivity in rare-earth nickel boride carbides. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:647-650. [PMID: 9974601 DOI: 10.1103/physrevb.50.647] [Citation(s) in RCA: 157] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
The fullerene C(60) can be converted into two different structures by high pressure and temperature. They are metastable and revert to pristine C(60) on reheating to 300 degrees C at ambient pressure. For synthesis temperatures between 300 degrees and 400 degrees C and pressures of 5 gigapascals, a nominal face-centered-cubic structure is produced with a lattice parameter a(o) = 13.6 angstroms. When treated at 500 degrees to 800 degrees C at the same pressure, C(60) transforms into a rhombohedral structure with hexagonal lattice parameters of a(o) = 9.22 angstroms and c(o) = 24.6 angstroms. The intermolecular distance is small enough that a chemical bond can form, in accord with the reduced solubility of the pressure-induced phases. Infrared, Raman, and nuclear magnetic resonance studies show a drastic reduction of icosahedral symmetry, as might occur if the C(60) molecules are linked.
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Ground states of a triangular copper oxide system. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:16082-16085. [PMID: 10010755 DOI: 10.1103/physrevb.49.16082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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63Cu NMR study of conducting delafossites. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:12369-12372. [PMID: 10010134 DOI: 10.1103/physrevb.49.12369] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:11890-11894. [PMID: 10010060 DOI: 10.1103/physrevb.49.11890] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Scaling of the temperature dependent Hall effect in La2-xSrxCuO4. PHYSICAL REVIEW LETTERS 1994; 72:2636-2639. [PMID: 10055934 DOI: 10.1103/physrevlett.72.2636] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Trivalent rare earths in layered (LX)1.15NbX2 chalcogenides. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:6343-6345. [PMID: 10011627 DOI: 10.1103/physrevb.49.6343] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Oxygen-deficient barium lead oxide perovskites. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:11525-11528. [PMID: 10005301 DOI: 10.1103/physrevb.47.11525] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Magnetoresistance of SmMn2Ge2: A layered antiferromagnet. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:6134-6137. [PMID: 10004569 DOI: 10.1103/physrevb.47.6134] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
Single-crystal epitaxial thin films of the isotropic metallic oxides Sr1-xCaxRuO(3) (0 </= x </= 1) were grown on miscut SrTiO(3)(100) substrates in situ by 90 degrees off-axis sputtering. These thin films exhibit low isotropic resistivities, excellent chemical and thermal stability, good surface smoothness, and high crystalline quality. Furthermore, the lattice parameters and magnetic properties can be varied by simply changing the strontium/calcium ratio. These epitaxial thin films, and their multilayer structures with other oxide materials, can be used for the fabrication of superconducting, ferroelectric, magneto-optic, and electro-optic devices.
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Synthesis and characterization of Ba3(Pb1-xBix)2O7. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:14101-14104. [PMID: 10003481 DOI: 10.1103/physrevb.46.14101] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Systematic evolution of temperature-dependent resistivity in La2-xSrxCuO4. PHYSICAL REVIEW LETTERS 1992; 69:2975-2978. [PMID: 10046689 DOI: 10.1103/physrevlett.69.2975] [Citation(s) in RCA: 115] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary. PHYSICAL REVIEW LETTERS 1992; 68:3777-3780. [PMID: 10045794 DOI: 10.1103/physrevlett.68.3777] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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(Ba,K)3Bi2O7: A layered bismuth oxide. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:9746-9748. [PMID: 9998970 DOI: 10.1103/physrevb.44.9746] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Electrical and magnetic properties of Nb2O5- delta crystallographic shear structures. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:6973-6981. [PMID: 9998581 DOI: 10.1103/physrevb.44.6973] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Magnetic and electrical properties of La2-xSrxNiO4+/- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:1229-1232. [PMID: 9996333 DOI: 10.1103/physrevb.43.1229] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Residence times and coverage by surface intermediates during the Fischer-Tropsch synthesis. Catal Letters 1991. [DOI: 10.1007/bf00764495] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nonsuperconducting BaSn1-xSbxO3: The 5s-orbital analog of BaPb1-xBixO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:4815-4818. [PMID: 9996029 DOI: 10.1103/physrevb.42.4815] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Microstructure of Pb2Sr2ACu3O8 superconductors: New structures and superstructures. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:9685-9688. [PMID: 9947728 DOI: 10.1103/physrevb.39.9685] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Density of states and isotope effect in BiO superconductors: Evidence for nonphonon mechanism. PHYSICAL REVIEW LETTERS 1988; 61:1670-1673. [PMID: 10038865 DOI: 10.1103/physrevlett.61.1670] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Temperature dependence of the lattice parameters in the 30-K superconductor Ba0.6K0.4BiO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:7026-7028. [PMID: 9945389 DOI: 10.1103/physrevb.38.7026] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Structure and physical properties of single crystals of the 84-K superconductor Bi2.2Sr2Ca0.8Cu2O8+ delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:893-896. [PMID: 9945287 DOI: 10.1103/physrevb.38.893] [Citation(s) in RCA: 242] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Periodontics and the rubber dam. THE JOURNAL OF THE AMERICAN ACADEMY OF GOLD FOIL OPERATORS 1968; 11:5-12. [PMID: 5242495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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The effect of water pressure cleansing on te clinically normal gingival crevice. JOURNAL - CALIFORNIA DENTAL ASSOCIATION 1967; 43:452-4. [PMID: 5238069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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49
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Current status of water pressure cleansing in oral hygiene. JOURNAL - CALIFORNIA DENTAL ASSOCIATION 1966; 42:433-5. [PMID: 5223297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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