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Evolution of superconductivity and charge density wave through Ta and Mo doping in CsV3Sb5

Mengqin Liu, Tao Han, Xinran Hu, Yubing Tu, Zongyuan Zhang, Mingsheng Long, Xingyuan Hou, Qingge Mu, Lei Shan

DOI 10.1103/PhysRevB.106.L140501 · Physical Review B

T1

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Abstract

Here, we report the tunning study of superconductivity and charge density wave in CsV3Sb5 through the V kagome net doping. Combining electrical transport and magnetic susceptibility measurements, we reveal the opposite effect of Ta and Mo doping. Ta doping promotes the superconductivity but suppresses charge density wave, which may be explained by the lift of van Hove singularity towards EF. On the contrary, Mo doping suppresses the superconductivity quickly and leads to a continuous increase of charge density wave temperature up to 100.7 K. Our result suggests that electron doping can also effectively tune charge density wave state in CsV3Sb5.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
CsV3Sb5

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2.7Pressure not reportedunknown
CsV3Sb5

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2.78Pressure not reportedzero_resistance
CsV3Sb5

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2.55Pressure not reportedonset
CsTaxV3-xSb5

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3.5Pressure not reportedonset
Cs0.977Ta0.108V2.910Sb5.007

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3.23Pressure not reportedzero_resistance
Cs0.977Ta0.108V2.910Sb5.007

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3.1Pressure not reportedonset
CsMoxV3-xSb5

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1.3Pressure not reportedzero_resistance
CsMoxV3-xSb5

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2.45Pressure not reportedonset

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