Effect of Lead substitution on LaO0.5F0.5BiS2

Satoshi Otsuki; Satoshi Demura; Yuuto Sakai; Yuita Fujisawa; Hideaki Sakata

doi:10.1016/j.ssc.2017.11.002

Effect of Lead substitution on LaO_0.5F_0.5BiS₂

Satoshi Otsuki, Satoshi Demura, Yuuto Sakai, Yuita Fujisawa, Hideaki Sakata

Tokyo University of Science

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

7 Citations (Scopus)

Abstract

We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO_0.5F_0.5BiS₂. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO_0.7F_0.3BiS₂. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO_0.5F_0.5BiS₂.

Original language	English
Pages (from-to)	17-21
Number of pages	5
Journal	Solid State Communications
Volume	270
DOIs	https://doi.org/10.1016/j.ssc.2017.11.002
Publication status	Published - Feb 2018
Externally published	Yes

Keywords

A: BiS-based superconductor
B: Flux growth
C: Layered structure
D: Superconducting properties
E: Electrical resistivity measurement
E: Magnetic susceptibility measurement

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10.1016/j.ssc.2017.11.002

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title = "Effect of Lead substitution on LaO0.5F0.5BiS2",

abstract = "We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO0.5F0.5BiS2. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO0.7F0.3BiS2. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO0.5F0.5BiS2.",

keywords = "A: BiS-based superconductor, B: Flux growth, C: Layered structure, D: Superconducting properties, E: Electrical resistivity measurement, E: Magnetic susceptibility measurement",

author = "Satoshi Otsuki and Satoshi Demura and Yuuto Sakai and Yuita Fujisawa and Hideaki Sakata",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

doi = "10.1016/j.ssc.2017.11.002",

language = "English",

volume = "270",

pages = "17--21",

journal = "Solid State Communications",

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TY - JOUR

T1 - Effect of Lead substitution on LaO0.5F0.5BiS2

AU - Otsuki, Satoshi

AU - Demura, Satoshi

AU - Sakai, Yuuto

AU - Fujisawa, Yuita

AU - Sakata, Hideaki

PY - 2018/2

Y1 - 2018/2

N2 - We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO0.5F0.5BiS2. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO0.7F0.3BiS2. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO0.5F0.5BiS2.

AB - We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO0.5F0.5BiS2. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO0.7F0.3BiS2. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO0.5F0.5BiS2.

KW - A: BiS-based superconductor

KW - B: Flux growth

KW - C: Layered structure

KW - D: Superconducting properties

KW - E: Electrical resistivity measurement

KW - E: Magnetic susceptibility measurement

UR - http://www.scopus.com/inward/record.url?scp=85034106662&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2017.11.002

DO - 10.1016/j.ssc.2017.11.002

M3 - Article

AN - SCOPUS:85034106662

SN - 0038-1098

VL - 270

SP - 17

EP - 21

JO - Solid State Communications

JF - Solid State Communications

ER -

Effect of Lead substitution on LaO_0.5F_0.5BiS₂

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