Bulk superconductivity in quasi-one-dimensional ZrSe3 under high pressure

Yiping Gao; Can Tian; Xiaoli Huang; Xin Wang; Tian Cui

doi:10.1103/PhysRevB.109.104501

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Bulk superconductivity in quasi-one-dimensional ZrSe3 under high pressure

Yiping Gao, Can Tian, Xiaoli Huang, Xin Wang, Tian Cui

DOI 10.1103/PhysRevB.109.104501 · Physical Review B

T1

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Abstract

A wide range of two-dimensional (2D) materials have exhibited anomalous electrical properties when surrendered to pressure, along with the unsolved long-standing mystery of the relationship between dimension and superconductivity (SC). Investigation of group IVB transition-metal trichalcogenides (TMTCs) with anisotropic structures is expected to uncover novel physics and shed more light on this relationship in 2D materials. As a typical member in TMTCs, the ZrSe3 sample with a quasi-one-dimensional structure was discovered to change from a semiconductor into a bulk superconducting phase at 16.0 GPa, evidenced by the electrical transport and alternating-current magnetic susceptibility measurements under pressure. A maximum Tc−5.5 K was achieved at 23.1 GPa, concomitantly with an n-p carrier-type switch considered as Lifshitz transition. Besides, an isostructural phase transition was confirmed via in situ x-ray-diffraction measurement at 25.5 GPa, indicating the preservation of the quasi-one-dimensional structure throughout the pressure range. The present results indicate that the atomic spacing and in-plane anisotropy play an important role in the formation of bulk (filamentary) SC in group IVB TMTCs.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
ZrSe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.4	18 GPa	onset
ZrSe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	4.6	18 GPa	zero_resistance
ZrSe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.5	23.1 GPa	unknown
ZrSe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	4.7	26.1 GPa	unknown
NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
MoS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
WS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
ZrTe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
HfTe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
HfS3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	50.6 GPa	unknown