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Imajo S, Miyake A, Kurihara R, Tokunaga M, Kindo K, Horiuchi S, Kagawa F. Quantum Liquid States of Spin Solitons in a Ferroelectric Spin-Peierls State. PHYSICAL REVIEW LETTERS 2024; 132:096601. [PMID: 38489634 DOI: 10.1103/physrevlett.132.096601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 01/31/2024] [Indexed: 03/17/2024]
Abstract
In this study, we performed high-magnetic-field magnetization, dielectric, and ultrasound measurements on an organic salt showing a ferroelectric spin-Peierls (FSP) state, which is in close proximity to a quantum critical point. In contrast to the sparsely distributed gaslike spin solitons typically observed in conventional spin-Peierls (SP) states, the FSP state exhibits dense liquidlike spin solitons resulting from strong quantum fluctuations, even at low fields. Nevertheless, akin to conventional SP systems, a magnetic-field-induced transition is observed in the FSP state. In conventional high-field SP states, an emergent wave vector results in the formation of a spin-soliton lattice. However, in the present high-field FSP state, the strong quantum fluctuations preclude the formation of such a soliton lattice, causing the dense solitons to remain in a quantum-mechanically melted state. This observation implies the realization of a quantum liquid-liquid transition of topological particles carrying spin and charge in a ferroelectric insulator.
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Affiliation(s)
- Shusaku Imajo
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Atsushi Miyake
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
- Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan
| | - Ryosuke Kurihara
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
- Department of Physics, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Masashi Tokunaga
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Koichi Kindo
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Sachio Horiuchi
- Research Institute of Advanced Electronics and Photonics (RIAEP), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Fumitaka Kagawa
- Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
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Asaka T, Abe N, Kudo T, Fukuda K, Kimoto K, Matsui Y, Ishizawa N, Arima T. Structural phase transition and magnetic-field effect on the modulated structure in GdBaCo2O5+δ (δ < 0.5). PHYSICAL REVIEW LETTERS 2013; 110:125502. [PMID: 25166819 DOI: 10.1103/physrevlett.110.125502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 12/18/2012] [Indexed: 06/03/2023]
Abstract
We investigated the crystal structures of an ordered perovskite-type cobaltate, GdBaCo2O(5+δ) (δ < 0.5), at elevated temperatures by transmission electron microscopy. Above the magnetic ordering temperature, we observed a first-order structural phase transition between the low-temperature tetragonal 3a(p) × 3a(p) and high-temperature orthorhombic 1a(p) × 2a(p) superstructure phases (where a(p) is the perovskite-unit cell). Upon the application of a magnetic field, an incommensurate phase emerges around the structural phase-transition temperature, which indicates a magnetic-field-induced structural phase transition via no magnetic ordering in the ordered perovskite-type cobaltate.
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Affiliation(s)
- T Asaka
- Department of Materials Science and Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - N Abe
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Kudo
- Department of Materials Science and Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - K Fukuda
- Department of Materials Science and Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - K Kimoto
- National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - Y Matsui
- National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - N Ishizawa
- Advanced Ceramics Research Center, Nagoya Institute of Technology, Tajimi 507-0071, Japan
| | - T Arima
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
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Park S, Choi YJ, Zhang CL, Cheong SW. Ferroelectricity in an s=1/2 chain cuprate. PHYSICAL REVIEW LETTERS 2007; 98:057601. [PMID: 17358898 DOI: 10.1103/physrevlett.98.057601] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2006] [Indexed: 05/14/2023]
Abstract
We report our discovery of ferroelectricity in the spiral-magnetic state in the quantum quasi-one-dimensional (1D) S=1/2 magnet of LiCu2O2. Electric polarization (P) emerges along the c direction below the spiral-magnetic order temperature, but changes from the c to a axis when magnetic fields (H) are applied along the b direction. We also found that P(c) increases with H(c), and P(a) appears with H(a). LiCu2O2 in zero field appears to be the first ferroelectric cuprate and also a prototypical example of the "1D spiral-magnetic ferroelectrics." However, the unexpected behavior in H may demonstrate the complexity of the ordered spin configuration, inherent in the 1D S=1/2 magnet of LiCu2O2.
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Affiliation(s)
- S Park
- Rutgers Center for Emergent Materials & Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
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Hierarchy of the density-wave states and superconductivity in the organic conductor α-(BEDT-TTF)2KHg(SCN)4. CR CHIM 2007. [DOI: 10.1016/j.crci.2006.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Real-space treatment of spin-Peierls transitions: Gap equation and magnetic crossover of the linear Heisenberg antiferromagnet. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.01.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Roessli B, Schefer J, Petrakovskii GA, Ouladdiaf B, Boehm M, Staub U, Vorotinov A, Bezmaternikh L. Formation of a magnetic soliton lattice in copper metaborate. PHYSICAL REVIEW LETTERS 2001; 86:1885-1888. [PMID: 11290273 DOI: 10.1103/physrevlett.86.1885] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2000] [Indexed: 05/23/2023]
Abstract
The magnetic ground state of CuB2O4 is incommensurate at T = 1.8 K and undergoes a continuous phase transition to a noncollinear commensurate antiferromagnetic state at T(small star), filled approximately 10 K. Close to T(small star), filled higher-order magnetic satellites are observed. Coexistence of long- and short-range magnetic order is observed in both magnetic phases. This suggests that the association of the Dzyaloshinskii-Moriya interaction and anisotropy leads to the formation of a magnetic soliton lattice.
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Affiliation(s)
- B Roessli
- Laboratory for Neutron Scattering, ETH Zurich & Paul Scherrer Institue, Villigen PSI, Switzerland
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Li G, Musfeldt JL, Wang YJ, Jandl S, Poirier M, Revcolevschi A, Dhalenne G. Optical observation of the interplay between magnetic and elastic energy in a spin-Peierls system. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R15633-R15636. [PMID: 9985720 DOI: 10.1103/physrevb.54.r15633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kiryukhin V, Keimer B, Hill JP, Coad SM, Paul DM. Synchrotron x-ray-scattering study of magnetic-field-induced transitions in Cu1-x(Zn, Ni)xGeO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:7269-7278. [PMID: 9984348 DOI: 10.1103/physrevb.54.7269] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Fagot-Revurat Y, Horvatic M, Berthier C, Ségransan P, Dhalenne G, Revcolevschi A. NMR Evidence for a Magnetic Soliton Lattice in the High-Field Phase of CuGeO. PHYSICAL REVIEW LETTERS 1996; 77:1861-1864. [PMID: 10063190 DOI: 10.1103/physrevlett.77.1861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Musfeldt JL, Wang YJ, Jandl S, Poirier M, Revcolevschi A, Dhalenne G. Infrared investigation of the broken-symmetry ground state in GeCuO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:469-473. [PMID: 9984282 DOI: 10.1103/physrevb.54.469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kiryukhin V, Keimer B, Hill JP, Vigliante A. Soliton lattice in pure and diluted CuGeO3. PHYSICAL REVIEW LETTERS 1996; 76:4608-4611. [PMID: 10061334 DOI: 10.1103/physrevlett.76.4608] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Regnault LP, Aïn M, Hennion B, Dhalenne G, Revcolevschi A. Inelastic-neutron-scattering investigation of the spin-Peierls system CuGeO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:5579-5597. [PMID: 9984167 DOI: 10.1103/physrevb.53.5579] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Saint-Paul M, Reményi G, Hegmann N, Monceau P, Dhalenne G, Revcolevschi A. Ultrasonic study of magnetoelastic effects in the spin-Peierls state of CuGeO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:15298-15303. [PMID: 9980885 DOI: 10.1103/physrevb.52.15298] [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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Poirier M, Castonguay M, Revcolevschi A, Dhalenne G. Magnetoelastic coupling and order parameter in the spin-Peierls system CuGeO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:16058-16065. [PMID: 9980989 DOI: 10.1103/physrevb.52.16058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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