Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta2PdSe5

J. Zhang; J. K. Dong; Y. Xu; J. Pan; L. P. He; L. J. Zhang; S. Y. Li

doi:10.1088/0953-2048/28/11/115015

Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta₂PdSe₅

J. Zhang
, J. K. Dong
, Y. Xu
, J. Pan
, L. P. He
, L. J. Zhang
, S. Y. Li

Fudan University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We report the synthesis and superconducting properties of a new transition-metal chalcogenide, Ta₂PdSe₅. Measurements of resistivity, magnetization, and specific heat reveal that Ta₂PdSe₅ is a bulk superconductor with . The zero-field electronic specific heat in the superconducting state can be fitted with a two-gap BCS model. The upper critical field H _c2 shows a linear temperature dependence, and the value of H _c2(0) is much higher than the estimated Pauli limiting field and orbital limiting field All these results of specific heat and upper critical field suggest that Ta₂PdSe₅ is a multi-band superconductor.

Original language	English
Article number	115015
Journal	Superconductor Science and Technology
Volume	28
Issue number	11
DOIs	https://doi.org/10.1088/0953-2048/28/11/115015
State	Published - 9 Oct 2015
Externally published	Yes

Keywords

Transition-metal compounds
large upper critical field
multi-band superconductor

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10.1088/0953-2048/28/11/115015

Cite this

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title = "Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta2PdSe5 ",

abstract = "We report the synthesis and superconducting properties of a new transition-metal chalcogenide, Ta2PdSe5. Measurements of resistivity, magnetization, and specific heat reveal that Ta2PdSe5 is a bulk superconductor with . The zero-field electronic specific heat in the superconducting state can be fitted with a two-gap BCS model. The upper critical field H c2 shows a linear temperature dependence, and the value of H c2(0) is much higher than the estimated Pauli limiting field and orbital limiting field All these results of specific heat and upper critical field suggest that Ta2PdSe5 is a multi-band superconductor.",

keywords = "Transition-metal compounds, large upper critical field, multi-band superconductor",

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T1 - Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta2PdSe5

AU - Zhang, J.

AU - Dong, J. K.

AU - Xu, Y.

AU - Pan, J.

AU - He, L. P.

AU - Zhang, L. J.

AU - Li, S. Y.

PY - 2015/10/9

Y1 - 2015/10/9

N2 - We report the synthesis and superconducting properties of a new transition-metal chalcogenide, Ta2PdSe5. Measurements of resistivity, magnetization, and specific heat reveal that Ta2PdSe5 is a bulk superconductor with . The zero-field electronic specific heat in the superconducting state can be fitted with a two-gap BCS model. The upper critical field H c2 shows a linear temperature dependence, and the value of H c2(0) is much higher than the estimated Pauli limiting field and orbital limiting field All these results of specific heat and upper critical field suggest that Ta2PdSe5 is a multi-band superconductor.

AB - We report the synthesis and superconducting properties of a new transition-metal chalcogenide, Ta2PdSe5. Measurements of resistivity, magnetization, and specific heat reveal that Ta2PdSe5 is a bulk superconductor with . The zero-field electronic specific heat in the superconducting state can be fitted with a two-gap BCS model. The upper critical field H c2 shows a linear temperature dependence, and the value of H c2(0) is much higher than the estimated Pauli limiting field and orbital limiting field All these results of specific heat and upper critical field suggest that Ta2PdSe5 is a multi-band superconductor.

KW - Transition-metal compounds

KW - large upper critical field

KW - multi-band superconductor

UR - https://www.scopus.com/pages/publications/84945577167

U2 - 10.1088/0953-2048/28/11/115015

DO - 10.1088/0953-2048/28/11/115015

M3 - 文章

AN - SCOPUS:84945577167

SN - 0953-2048

VL - 28

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 11

M1 - 115015

ER -

Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta₂PdSe₅

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Keywords

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