Revealing the competition between charge density wave and superconductivity in CsV 3 Sb 5 through uniaxial strain
Tiema Qian,Morten Christensen,Chaowei Hu,Amartyajyoti Saha,Brian M. Andersen,Rafael M. Fernandes,Turan Birol,Ni Ni +7 more
TLDR
In this article, the authors apply uniaxial strain on the layered kagome superconductor CsV{}_{3}$Sb${}_{5}$.Abstract:
The authors apply uniaxial strain on the layered kagome superconductor CsV${}_{3}$Sb${}_{5}$. They show that its charge density wave (CDW) and superconductivity (SC) transitions are dominated by the change in the $c$ axis, and the effect of the explicit rotational symmetry breaking by strain is negligible on the competition between CDW and SC. Together with theoretical studies, they propose that the trilinear coupling between the ${M}_{1}^{+}$ and ${L}_{2}^{\ensuremath{-}}$ phonon modes plays an important role in the CDW.read more
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Charge-Density-Wave-Induced Peak-Dip-Hump Structure and the Multiband Superconductivity in a Kagome Superconductor <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>CsV</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Sb</mml:mi></mml:mrow><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:mrow></mml:math>
TL;DR: In this paper , the authors studied the electronic properties of CDW and superconductivity in CsV{3}Sb_{5} and found that the peak-dip-hump line shape is contributed by linearly dispersive Dirac bands in the lower branch and a dispersionless flat band close to E_{F} in the upper branch.
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Tuning the Van Hove singularities in AV3Sb5 (A=K,Rb,Cs) via pressure and doping
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Charge density wave order in the kagome metal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>A</mml:mi><mml:mrow><mml:msub><mml:mi mathvariant="normal">V</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Sb</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:mrow></mml:math> <mml:ma
TL;DR: In this article , the primary and secondary order parameters, as well as their interplay, in the charge density wave (CDW) state of the kagome metal AV3Sb5 were investigated.
Posted Content
Higher-order topological superconductivity from repulsive interactions in kagome and honeycomb systems
TL;DR: In this paper, a pairing mechanism in interacting two-dimensional multipartite lattices was discussed, which intrinsically leads to a second order topological superconducting state with a spatially modulated gap.
Journal ArticleDOI
Magnetism and charge density wave order in kagome FeGe
Xiaokun Teng,Ji Seop Oh,Hengxin Tan,Lebing Chen,Jianwei Huang,B. Gao,Jiaxin Yin,Jiun-Haw Chu,Makoto Hashimoto,Donghui Lu,Chris Jozwiak,Aaron Bostwick,Eli Rotenberg,Garrett E. Granroth,Binghai Yan,Robert J. Birgeneau,Pengcheng Dai,Ming Yi +17 more
TL;DR: In this article , a charge density wave was discovered in the magnetic kagome FeGe, providing a platform for understanding the interplay between charge order and magnetism in KGOMA materials.
References
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Georg Kresse,Jürgen Furthmüller +1 more
TL;DR: An efficient scheme for calculating the Kohn-Sham ground state of metallic systems using pseudopotentials and a plane-wave basis set is presented and the application of Pulay's DIIS method to the iterative diagonalization of large matrices will be discussed.
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Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
Georg Kresse,Jürgen Furthmüller +1 more
TL;DR: A detailed description and comparison of algorithms for performing ab-initio quantum-mechanical calculations using pseudopotentials and a plane-wave basis set is presented in this article. But this is not a comparison of our algorithm with the one presented in this paper.
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Georg Kresse,Jürgen Hafner +1 more
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Journal ArticleDOI
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces
John P. Perdew,Adrienn Ruzsinszky,Gábor I. Csonka,Oleg A. Vydrov,Gustavo E. Scuseria,Lucian A. Constantin,Xiaolan Zhou,Kieron Burke +7 more
TL;DR: A revised Perdew-Burke-Ernzerhof generalized gradient approximation is introduced that improves equilibrium properties of densely packed solids and their surfaces.
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Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67
Johan Juul Chang,Johan Juul Chang,Elizabeth Blackburn,Alexander T. Holmes,Niels Bech Christensen,Jacob Larsen,Jacob Larsen,Joël Mesot,Joël Mesot,Ruixing Liang,Ruixing Liang,D. A. Bonn,D. A. Bonn,Walter Hardy,Walter Hardy,A. Watenphul,Martin v. Zimmermann,E. M. Forgan,Stephen M Hayden +18 more
TL;DR: X-ray diffraction experiments reveal that spatial charge ordering occurs in the pseudogap state of YBa2Cu3O6.67 as discussed by the authors, which competes with high-temperature superconductivity, and their relative strengths can be tuned using a magnetic field.