Tuning of charge density wave transitions in LaAu$_x$Sb$_2$ by pressure and Au-stoichiometry

Dominic H. Ryan; Li Xiang; Paul C. Canfield; Sergey L. Bud'ko; Warren E. Straszheim

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Tuning of charge density wave transitions in LaAu_xSb₂ by pressure and Au-stoichiometry

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arxiv 2005.10164 v1 pith:QD5MHB6V submitted 2020-05-20 cond-mat.mtrl-sci cond-mat.str-el

Tuning of charge density wave transitions in LaAu_xSb₂ by pressure and Au-stoichiometry

Li Xiang , Dominic H. Ryan , Warren E. Straszheim , Paul C. Canfield , Sergey L. Bud'ko This is my paper

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keywords chargedensitylaautransitiontransitionswavekbarpressure

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Two charge density wave transition can be detected in LaAu$_x$Sb$_2$ at ~ 110 and ~ 90 K by careful electrical transport measurements. Whereas control of the Au site occupancy in LaAu$_x$Sb$_2$ (for 0.9 < x < 1.0) can suppress each of these transitions by ~ 80 K, the application of hydrostatic pressure can completely suppress the lower transition by ~ 10 kbar and the upper transition by ~ 17 kbar. Clear anomalies in the resistance as well as the magnetoresistance are observed to coincide with the pressures at which the charge density wave transitions are driven to zero.

Tuning of charge density wave transitions in LaAu_xSb₂ by pressure and Au-stoichiometry

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