Growth and superconducting properties of F-substituted ROBiS2 (R=La, Ce, Nd) single crystals

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

doi:10.1016/j.ssc.2013.10.019

Growth and superconducting properties of F-substituted ROBiS₂ (R=La, Ce, Nd) single crystals

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

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

77 Citations (Scopus)

Abstract

F-substituted ROBiS₂ (R=La, Ce, Nd) superconducting single crystals with different F concentrations were grown successfully using a CsCl/KCl flux. All crystals produced had a plate-like shape, with a well-developed ab-plane 1-2 mm in size. Electron probe microanalysis did not detect any Cs, K, or Cl flux components in the crystals. As-grown single crystals of F-substituted LaOBiS₂ and CeOBiS₂ exhibited superconductivity at about 3 K, whereas F-substituted NdOBiS₂ was superconductive at approximately 5 K. The superconducting anisotropy of single crystal F-substituted LaOBiS₂ and NdOBiS₂ was estimated to be 30-45 according to the effective mass model, whereas the anisotropy for F-substituted CeOBiS₂ single crystals was 13-21. The F-substituted CeOBiS₂ single crystals exhibited a magnetic order around 7 K that apparently coexisted with superconductivity below approximately 3 K.

Original language	English
Pages (from-to)	33-36
Number of pages	4
Journal	Solid State Communications
Volume	178
DOIs	https://doi.org/10.1016/j.ssc.2013.10.019
Publication status	Published - 2014
Externally published	Yes

Keywords

B. Flux growth
D. Superconducting anisotropy

Access to Document

10.1016/j.ssc.2013.10.019

Cite this

@article{8ce865cf06a94a31a845f16f5987329f,

title = "Growth and superconducting properties of F-substituted ROBiS2 (R=La, Ce, Nd) single crystals",

abstract = "F-substituted ROBiS2 (R=La, Ce, Nd) superconducting single crystals with different F concentrations were grown successfully using a CsCl/KCl flux. All crystals produced had a plate-like shape, with a well-developed ab-plane 1-2 mm in size. Electron probe microanalysis did not detect any Cs, K, or Cl flux components in the crystals. As-grown single crystals of F-substituted LaOBiS2 and CeOBiS2 exhibited superconductivity at about 3 K, whereas F-substituted NdOBiS2 was superconductive at approximately 5 K. The superconducting anisotropy of single crystal F-substituted LaOBiS2 and NdOBiS2 was estimated to be 30-45 according to the effective mass model, whereas the anisotropy for F-substituted CeOBiS2 single crystals was 13-21. The F-substituted CeOBiS2 single crystals exhibited a magnetic order around 7 K that apparently coexisted with superconductivity below approximately 3 K.",

keywords = "B. Flux growth, D. Superconducting anisotropy",

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

year = "2014",

doi = "10.1016/j.ssc.2013.10.019",

language = "English",

volume = "178",

pages = "33--36",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Growth and superconducting properties of F-substituted ROBiS2 (R=La, Ce, Nd) single crystals

AU - Nagao, Masanori

AU - Miura, Akira

AU - Demura, Satoshi

AU - Deguchi, Keita

AU - Watauchi, Satoshi

AU - Takei, Takahiro

AU - Takano, Yoshihiko

AU - Kumada, Nobuhiro

AU - Tanaka, Isao

PY - 2014

Y1 - 2014

N2 - F-substituted ROBiS2 (R=La, Ce, Nd) superconducting single crystals with different F concentrations were grown successfully using a CsCl/KCl flux. All crystals produced had a plate-like shape, with a well-developed ab-plane 1-2 mm in size. Electron probe microanalysis did not detect any Cs, K, or Cl flux components in the crystals. As-grown single crystals of F-substituted LaOBiS2 and CeOBiS2 exhibited superconductivity at about 3 K, whereas F-substituted NdOBiS2 was superconductive at approximately 5 K. The superconducting anisotropy of single crystal F-substituted LaOBiS2 and NdOBiS2 was estimated to be 30-45 according to the effective mass model, whereas the anisotropy for F-substituted CeOBiS2 single crystals was 13-21. The F-substituted CeOBiS2 single crystals exhibited a magnetic order around 7 K that apparently coexisted with superconductivity below approximately 3 K.

AB - F-substituted ROBiS2 (R=La, Ce, Nd) superconducting single crystals with different F concentrations were grown successfully using a CsCl/KCl flux. All crystals produced had a plate-like shape, with a well-developed ab-plane 1-2 mm in size. Electron probe microanalysis did not detect any Cs, K, or Cl flux components in the crystals. As-grown single crystals of F-substituted LaOBiS2 and CeOBiS2 exhibited superconductivity at about 3 K, whereas F-substituted NdOBiS2 was superconductive at approximately 5 K. The superconducting anisotropy of single crystal F-substituted LaOBiS2 and NdOBiS2 was estimated to be 30-45 according to the effective mass model, whereas the anisotropy for F-substituted CeOBiS2 single crystals was 13-21. The F-substituted CeOBiS2 single crystals exhibited a magnetic order around 7 K that apparently coexisted with superconductivity below approximately 3 K.

KW - B. Flux growth

KW - D. Superconducting anisotropy

UR - http://www.scopus.com/inward/record.url?scp=84894377021&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2013.10.019

DO - 10.1016/j.ssc.2013.10.019

M3 - Article

AN - SCOPUS:84894377021

SN - 0038-1098

VL - 178

SP - 33

EP - 36

JO - Solid State Communications

JF - Solid State Communications

ER -

Growth and superconducting properties of F-substituted ROBiS₂ (R=La, Ce, Nd) single crystals

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this