Evolution of superconductivity and charge density wave through Ta and Mo doping in CsV3Sb5
PHYSICAL REVIEW B(2022)
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.
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Key words
superconductivity,density wave
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