Possible star-of-David pattern charge density wave with additional modulation in the kagome superconductor CsV3Sb5
Reads0
Chats0
TLDR
In this article , the authors investigated the structure of the charge density wave (CDW) order in kagome-metal superconductors and found that the CDW order is commensurate with the charge modulation.Abstract:
$A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) is a novel kagome superconductor coexisting with the charge density wave (CDW) order. Identifying the structure of the CDW order is crucial for understanding the exotic normal state and superconductivity in this system. Here, we report $^{51}$V nuclear magnetic resonance (NMR) and $^{121/123}$Sb nuclear quadrupole resonance (NQR) studies on kagome-metal CsV$_3$Sb$_5$. Below the CDW transition temperature $T_\textrm{CDW} \sim$ 98 K, an abrupt change of spectra was observed, indicating that the transition is of the first order. By further analysing the spectra, we find that the CDW order is commensurate. And most remarkably, the obtained experimental results suggest that the charge modulation of the CDW order is of star-of-David pattern and accompanied by an additional charge modulation in bulk below $T^* \sim$ 40 K. Our results revealing the unconventional CDW order provide new insights into $A$V$_3$Sb$_5$. read more
Citations
More filters
Journal ArticleDOI
Three-state nematicity and magneto-optical Kerr effect in the charge density waves in kagome superconductors
Yishuai Xu,Zhuoliang Ni,Yizhou Liu,Brenden R. Ortiz,S J Wilson,Binghai Yan,Leon Balents,Liang-Mei Wu +7 more
TL;DR: In this article , the authors performed birefringence microscopy on all three members of this family and found that sixfold rotation symmetry is broken at the onset of the charge-density wave transition in all these compounds.
Journal ArticleDOI
Fermi level tuning and double-dome superconductivity in the kagome metal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">CsV</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Sb</mml:mi><mml:mrow><mml:mn>5</mml:mn><mml:mo>−</
Yuzki M. Oey,Brenden R. Ortiz,Farnaz Kaboudvand,Jonathan Frassineti,Eric Garces Garcia,R. Cong,Samuele Sanna,Vesna Mitrovic,R. Seshadri,S J Wilson +9 more
TL;DR: The recently discovered kagome metal CsV${}_{3}$Sb${}{5}$ displays a superconducting transition at low temperature accompanied by a charge density wave ordering at higher temperature, among many other interesting features that arise from nested saddle points near the Fermi energy as discussed by the authors .
Journal ArticleDOI
Switchable chiral transport in charge-ordered kagome metal CsV3Sb5
Chunyu Guo,Carsten Putzke,Sofia Konyzheva,Xiangwei Huang,Martin Gutierrez-Amigo,Ion Errea,Dongfeng Chen,Maia G. Vergniory,Claudia Felser,Mark H. Fischer,Titus Neupert,Philip J. W. Moll +11 more
TL;DR: In this article , it was shown that the chirality is set by the out-of-plane field component and that a transition from left-to right-handed transport can be induced by changing the field sign.
Journal ArticleDOI
Topological kagome magnets and superconductors.
Jiaxin Yin,Biao Lian,M. Z. Hasan +2 more
TL;DR: In this paper , the fundamental concepts of a kagome lattice, realizations of Chern and Weyl topological magnetism, flat-band many-body correlations, and unconventional charge-density waves and superconductivity are reviewed.
References
More filters
Journal ArticleDOI
The electronic properties of graphene
TL;DR: In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.
Journal ArticleDOI
From quantum matter to high-temperature superconductivity in copper oxides
TL;DR: The discovery of high-temperature superconductivity in the copper oxides in 1986 triggered a huge amount of innovative scientific inquiry but unresolved issues include the astonishing complexity of the phase diagram, the unprecedented prominence of various forms of collective fluctuations, and the simplicity and insensitivity to material details of the ‘normal’ state at elevated temperatures.
Journal ArticleDOI
Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides
TL;DR: In this paper, it was shown that charge-density waves and their concomitant periodic structural distortions occur in all the 4d1/5d1 dichalcogenides and related the observed periodicities of these CDW states to the theoretical form of the parent Fermi surfaces.
Journal ArticleDOI
Spin-Liquid Ground State of the S = 1/2 Kagome Heisenberg Antiferromagnet
TL;DR: This work uses the density matrix renormalization group to perform accurate calculations of the ground state of the nearest-neighbor quantum spin S = 1/2 Heisenberg antiferromagnet on the kagome lattice and provides strong evidence that, for the infinite two-dimensional system, the groundState of this model is a fully gapped spin liquid.
Journal ArticleDOI
Magnetic-field-induced charge-stripe order in the high-temperature superconductor YBa2Cu3Oy.
Tao Wu,Hadrien Mayaffre,Steffen Krämer,Mladen Horvatić,Claude Berthier,Walter Hardy,Walter Hardy,Ruixing Liang,Ruixing Liang,D. A. Bonn,D. A. Bonn,Marc-Henri Julien +11 more
TL;DR: Nuclear magnetic resonance measurements are reported showing that high magnetic fields actually induce charge order, without spin order, in the CuO2 planes of YBa2Cu3Oy, and it is argued that it is most probably the same 4a-periodic modulation as in stripe-ordered copper oxides.
Related Papers (5)
Fragile superconductivity in the presence of weakly disordered charge density waves
Yue Yu,Steven A. Kivelson +1 more