Enhancement of Tc in BiS2-based superconductors NdO0.7F0.3BiS2 by substitution of Pb for Bi

S. Demura; Y. Fujisawa; S. Otsuki; R. Ishio; Y. Takano; H. Sakata

doi:10.1016/j.ssc.2015.09.002

Enhancement of T_c in BiS₂-based superconductors NdO_0.7F_0.3BiS₂ by substitution of Pb for Bi

S. Demura, Y. Fujisawa, S. Otsuki, R. Ishio, Y. Takano, H. Sakata

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

11 Citations (Scopus)

Abstract

We succeed in enhancement of a superconducting transition temperature (T_c) for NdO_0.7F_0.3BiS₂ single crystal by partial substitution of Pb for Bi. The T_c increases with increasing Pb concentration until 6%. The maximum T_c^zero is 5.6 K, which is the highest value among BiS₂-based based superconductors synthesized under an ambient pressure. Pb substitution for Bi induces lattice shrinkage along the c-axis. These results reflect that superconductivity in this system is responsive to the lattice strain.

Original language	English
Pages (from-to)	40-44
Number of pages	5
Journal	Solid State Communications
Volume	223
DOIs	https://doi.org/10.1016/j.ssc.2015.09.002
Publication status	Published - 1 Dec 2015
Externally published	Yes

Keywords

A. BiS-superconductor
A. Superconductivity
E. Scanning tunneling spectroscopy (STM)
E. Transport properties

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10.1016/j.ssc.2015.09.002

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title = "Enhancement of Tc in BiS2-based superconductors NdO0.7F0.3BiS2 by substitution of Pb for Bi",

abstract = "We succeed in enhancement of a superconducting transition temperature (Tc) for NdO0.7F0.3BiS2 single crystal by partial substitution of Pb for Bi. The Tc increases with increasing Pb concentration until 6%. The maximum Tczero is 5.6 K, which is the highest value among BiS2-based based superconductors synthesized under an ambient pressure. Pb substitution for Bi induces lattice shrinkage along the c-axis. These results reflect that superconductivity in this system is responsive to the lattice strain.",

keywords = "A. BiS-superconductor, A. Superconductivity, E. Scanning tunneling spectroscopy (STM), E. Transport properties",

author = "S. Demura and Y. Fujisawa and S. Otsuki and R. Ishio and Y. Takano and H. Sakata",

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doi = "10.1016/j.ssc.2015.09.002",

language = "English",

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T1 - Enhancement of Tc in BiS2-based superconductors NdO0.7F0.3BiS2 by substitution of Pb for Bi

AU - Demura, S.

AU - Fujisawa, Y.

AU - Otsuki, S.

AU - Ishio, R.

AU - Takano, Y.

AU - Sakata, H.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - We succeed in enhancement of a superconducting transition temperature (Tc) for NdO0.7F0.3BiS2 single crystal by partial substitution of Pb for Bi. The Tc increases with increasing Pb concentration until 6%. The maximum Tczero is 5.6 K, which is the highest value among BiS2-based based superconductors synthesized under an ambient pressure. Pb substitution for Bi induces lattice shrinkage along the c-axis. These results reflect that superconductivity in this system is responsive to the lattice strain.

AB - We succeed in enhancement of a superconducting transition temperature (Tc) for NdO0.7F0.3BiS2 single crystal by partial substitution of Pb for Bi. The Tc increases with increasing Pb concentration until 6%. The maximum Tczero is 5.6 K, which is the highest value among BiS2-based based superconductors synthesized under an ambient pressure. Pb substitution for Bi induces lattice shrinkage along the c-axis. These results reflect that superconductivity in this system is responsive to the lattice strain.

KW - A. BiS-superconductor

KW - A. Superconductivity

KW - E. Scanning tunneling spectroscopy (STM)

KW - E. Transport properties

UR - http://www.scopus.com/inward/record.url?scp=84943612531&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2015.09.002

DO - 10.1016/j.ssc.2015.09.002

M3 - Article

AN - SCOPUS:84943612531

SN - 0038-1098

VL - 223

SP - 40

EP - 44

JO - Solid State Communications

JF - Solid State Communications

ER -

Enhancement of T_c in BiS₂-based superconductors NdO_0.7F_0.3BiS₂ by substitution of Pb for Bi

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Keywords

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