Structural analysis and superconducting properties of F-substituted NdOBiS2single crystals

Masanori Nagao; Satoshi Demura; Keita Deguchi; Akira Miura; Satoshi Watauchi; Takahiro Takei; Yoshihiko Takano; Nobuhiro Kumada; Isao Tanaka

doi:10.7566/JPSJ.82.113701

Structural analysis and superconducting properties of F-substituted NdOBiS₂single crystals

Masanori Nagao, Satoshi Demura, Keita Deguchi, Akira Miura, Satoshi Watauchi, Takahiro Takei, Yoshihiko Takano, Nobuhiro Kumada, Isao Tanaka

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

90 Citations (Scopus)

Abstract

F-substituted NdOBiS₂superconducting single crystals were grown using CsCl/KCl.ux. This is the.rst example of the single-crystal growth of a BiS₂-based superconductor. The obtained single crystals had a plate-like shape with a size of 1-2mm and a well-developed ab-plane. The crystal structure of the grown crystals was determined by singlecrystal X-ray di.raction analysis to be the tetragonal space group P4=nmm (29) with a = 3:996(3) and c = 13:464(6)Å. The chemical formula of the grown crystals was approximately Nd_0.98±_0.06O _0.7±_0.1F_0.3±_0.1Bi _0.98±_0.04S₂, and Cs, K, and Cl were not detected in the grown crystals by electron probe microanalysis. The grown crystals had a critical temperature of approximately 5K. The superconducting anisotropy of the single crystals was estimated to be about 30 from the e.ective mass model and the upper critical.eld.

Original language	English
Article number	113701
Journal	Journal of the Physical Society of Japan
Volume	82
Issue number	11
DOIs	https://doi.org/10.7566/JPSJ.82.113701
Publication status	Published - Nov 2013
Externally published	Yes

Keywords

BiS-based superconductor
Cesium chloride and potassium chloride flux
Flux growth
Single-crystal X-ray diffraction

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10.7566/JPSJ.82.113701

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title = "Structural analysis and superconducting properties of F-substituted NdOBiS2single crystals",

abstract = "F-substituted NdOBiS2superconducting single crystals were grown using CsCl/KCl.ux. This is the.rst example of the single-crystal growth of a BiS2-based superconductor. The obtained single crystals had a plate-like shape with a size of 1-2mm and a well-developed ab-plane. The crystal structure of the grown crystals was determined by singlecrystal X-ray di.raction analysis to be the tetragonal space group P4=nmm (29) with a = 3:996(3) and c = 13:464(6){\AA}. The chemical formula of the grown crystals was approximately Nd0.98±0.06O 0.7±0.1F0.3±0.1Bi 0.98±0.04S2, and Cs, K, and Cl were not detected in the grown crystals by electron probe microanalysis. The grown crystals had a critical temperature of approximately 5K. The superconducting anisotropy of the single crystals was estimated to be about 30 from the e.ective mass model and the upper critical.eld.",

keywords = "BiS-based superconductor, Cesium chloride and potassium chloride flux, Flux growth, Single-crystal X-ray diffraction",

author = "Masanori Nagao and Satoshi Demura and Keita Deguchi and Akira Miura and Satoshi Watauchi and Takahiro Takei and Yoshihiko Takano and Nobuhiro Kumada and Isao Tanaka",

year = "2013",

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doi = "10.7566/JPSJ.82.113701",

language = "English",

volume = "82",

journal = "Journal of the Physical Society of Japan",

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T1 - Structural analysis and superconducting properties of F-substituted NdOBiS2single crystals

AU - Nagao, Masanori

AU - Demura, Satoshi

AU - Deguchi, Keita

AU - Miura, Akira

AU - Watauchi, Satoshi

AU - Takei, Takahiro

AU - Takano, Yoshihiko

AU - Kumada, Nobuhiro

AU - Tanaka, Isao

PY - 2013/11

Y1 - 2013/11

N2 - F-substituted NdOBiS2superconducting single crystals were grown using CsCl/KCl.ux. This is the.rst example of the single-crystal growth of a BiS2-based superconductor. The obtained single crystals had a plate-like shape with a size of 1-2mm and a well-developed ab-plane. The crystal structure of the grown crystals was determined by singlecrystal X-ray di.raction analysis to be the tetragonal space group P4=nmm (29) with a = 3:996(3) and c = 13:464(6)Å. The chemical formula of the grown crystals was approximately Nd0.98±0.06O 0.7±0.1F0.3±0.1Bi 0.98±0.04S2, and Cs, K, and Cl were not detected in the grown crystals by electron probe microanalysis. The grown crystals had a critical temperature of approximately 5K. The superconducting anisotropy of the single crystals was estimated to be about 30 from the e.ective mass model and the upper critical.eld.

AB - F-substituted NdOBiS2superconducting single crystals were grown using CsCl/KCl.ux. This is the.rst example of the single-crystal growth of a BiS2-based superconductor. The obtained single crystals had a plate-like shape with a size of 1-2mm and a well-developed ab-plane. The crystal structure of the grown crystals was determined by singlecrystal X-ray di.raction analysis to be the tetragonal space group P4=nmm (29) with a = 3:996(3) and c = 13:464(6)Å. The chemical formula of the grown crystals was approximately Nd0.98±0.06O 0.7±0.1F0.3±0.1Bi 0.98±0.04S2, and Cs, K, and Cl were not detected in the grown crystals by electron probe microanalysis. The grown crystals had a critical temperature of approximately 5K. The superconducting anisotropy of the single crystals was estimated to be about 30 from the e.ective mass model and the upper critical.eld.

KW - BiS-based superconductor

KW - Cesium chloride and potassium chloride flux

KW - Flux growth

KW - Single-crystal X-ray diffraction

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DO - 10.7566/JPSJ.82.113701

M3 - Article

AN - SCOPUS:84887087892

SN - 0031-9015

VL - 82

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 11

M1 - 113701

ER -

Structural analysis and superconducting properties of F-substituted NdOBiS₂single crystals

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