globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1821454116
论文题名:
Evidence for a vestigial nematic state in the cuprate pseudogap phase
作者: Mukhopadhyay S.; Sharma R.; Kim C.K.; Edkins S.D.; Hamidian M.H.; Eisaki H.; Uchida S.-I.; Kim E.-A.; Lawler M.J.; Mackenzie A.P.; Séamus Davis J.C.; Fujita K.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2019
卷: 116, 期:27
起始页码: 13249
结束页码: 13254
语种: 英语
英文关键词: Broken symmetry ; Cuprate ; Density wave ; Pseudogap ; Vestigial nematic
Scopus关键词: article ; doping ; phenomenology ; phenomenology
英文摘要: The CuO2 antiferromagnetic insulator is transformed by hole-doping into an exotic quantum fluid usually referred to as the pseudogap (PG) phase. Its defining characteristic is a strong suppression of the electronic density-of-states D(E) for energies jEj < Δ*, where Δ* is the PG energy. Unanticipated broken-symmetry phases have been detected by a wide variety of techniques in the PG regime, most significantly a finite-Q density-wave (DW) state and a Q = 0 nematic (NE) state. Sublattice-phase-resolved imaging of electronic structure allows the doping and energy dependence of these distinct broken-symmetry states to be visualized simultaneously. Using this approach, we show that even though their reported ordering temperatures TDW and TNE are unrelated to each other, both the DW and NE states always exhibit their maximum spectral intensity at the same energy, and using independent measurements that this is the PG energy Δ*. Moreover, no new energy-gap opening coincides with the appearance of the DW state (which should theoretically open an energy gap on the Fermi surface), while the observed PG opening coincides with the appearance of the NE state (which should theoretically be incapable of opening a Fermi-surface gap). We demonstrate how this perplexing phenomenology of thermal transitions and energy-gap opening at the breaking of two highly distinct symmetries may be understood as the natural consequence of a vestigial nematic state within the pseudogap phase of Bi2Sr2CaCu2O8 © 2019 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163613
Appears in Collections:气候变化与战略

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作者单位: Mukhopadhyay, S., Department of Physics, Indian Institute of Space Science and Technology, Thiruvananthapuram, 695547, India, Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, United States; Sharma, R., Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, United States, Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States; Kim, C.K., Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States; Edkins, S.D., Department of Applied Physics, Stanford University, Stanford, CA 94305, United States; Hamidian, M.H., Department of Physics, Harvard University, Cambridge, MA 02138, United States; Eisaki, H., Nanoelectronics Research Institute, Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8568, Japan; Uchida, S.-I., Nanoelectronics Research Institute, Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8568, Japan, Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan; Kim, E.-A., Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, United States; Lawler, M.J., Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, United States; Mackenzie, A.P., Max Planck Institute for Chemical Physics of Solids, Dresden, D-01187, Germany; Séamus Davis, J.C., Department of Physics, University College Cork, Cork, T12 R5C, Ireland, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, United Kingdom; Fujita, K., Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States

Recommended Citation:
Mukhopadhyay S.,Sharma R.,Kim C.K.,et al. Evidence for a vestigial nematic state in the cuprate pseudogap phase[J]. Proceedings of the National Academy of Sciences of the United States of America,2019-01-01,116(27)
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