Crystal structure and superconducting properties of KSr2Nb3O10

T. Kawaguchi; K. Horigane; Y. Itoh; K. Kobayashi; R. Horie; T. Kambe; J. Akimitsu

doi:10.1016/j.physb.2017.09.060

Crystal structure and superconducting properties of KSr₂Nb₃O₁₀

T. Kawaguchi, K. Horigane, Y. Itoh, K. Kobayashi, R. Horie, T. Kambe, J. Akimitsu

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

4 Citations (Scopus)

Abstract

We performed X-ray diffraction (XRD) and DC magnetic susceptibility measurements to elucidate the crystal structure and superconducting properties of KSr₂Nb₃O₁₀. From the diffraction pattern indexing, it was found that KSr₂Nb₃O₁₀ crystallizes with monoclinic symmetry, space group P2₁/m(11). We succeeded in preparing high temperature (HT) and low temperature (LT) phases of KSr₂Nb₃O₁₀ powder samples synthesized by a conventional solid state reaction and an ion-exchange reaction, respectively. Superconductivity was observed at 4 K by Li intercalation and it was found that the superconducting volume fraction of the LT phase (~ 1.4%) is clearly larger than that of the HT phase (0.07%).

Original language	English
Pages (from-to)	830-832
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	536
DOIs	https://doi.org/10.1016/j.physb.2017.09.060
Publication status	Published - May 1 2018

Keywords

Crystal structure
Intercalation
Nb-based compound
Superconductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2017.09.060

Cite this

@article{dc943e56769a49a386d15ea7f0a6c08b,

title = "Crystal structure and superconducting properties of KSr2Nb3O10 ",

abstract = "We performed X-ray diffraction (XRD) and DC magnetic susceptibility measurements to elucidate the crystal structure and superconducting properties of KSr2Nb3O10. From the diffraction pattern indexing, it was found that KSr2Nb3O10 crystallizes with monoclinic symmetry, space group P21/m(11). We succeeded in preparing high temperature (HT) and low temperature (LT) phases of KSr2Nb3O10 powder samples synthesized by a conventional solid state reaction and an ion-exchange reaction, respectively. Superconductivity was observed at 4 K by Li intercalation and it was found that the superconducting volume fraction of the LT phase (~ 1.4%) is clearly larger than that of the HT phase (0.07%).",

keywords = "Crystal structure, Intercalation, Nb-based compound, Superconductivity",

author = "T. Kawaguchi and K. Horigane and Y. Itoh and K. Kobayashi and R. Horie and T. Kambe and J. Akimitsu",

note = "Funding Information: The authors are grateful to Dr. H. Ota at Division of Instrumental Analysis for the X-ray single crystal structural analyses. This work was supported by Grants-in-Aid for Specially Promoted Research ( 25000003 ), Scientific Research A ( 26247057 ) and Young Scientists B ( 16K17750 ) from the Japan Society for the Promotion of Science . Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = may,

day = "1",

doi = "10.1016/j.physb.2017.09.060",

language = "English",

volume = "536",

pages = "830--832",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

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TY - JOUR

T1 - Crystal structure and superconducting properties of KSr2Nb3O10

AU - Kawaguchi, T.

AU - Horigane, K.

AU - Itoh, Y.

AU - Kobayashi, K.

AU - Horie, R.

AU - Kambe, T.

AU - Akimitsu, J.

N1 - Funding Information: The authors are grateful to Dr. H. Ota at Division of Instrumental Analysis for the X-ray single crystal structural analyses. This work was supported by Grants-in-Aid for Specially Promoted Research ( 25000003 ), Scientific Research A ( 26247057 ) and Young Scientists B ( 16K17750 ) from the Japan Society for the Promotion of Science . Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - We performed X-ray diffraction (XRD) and DC magnetic susceptibility measurements to elucidate the crystal structure and superconducting properties of KSr2Nb3O10. From the diffraction pattern indexing, it was found that KSr2Nb3O10 crystallizes with monoclinic symmetry, space group P21/m(11). We succeeded in preparing high temperature (HT) and low temperature (LT) phases of KSr2Nb3O10 powder samples synthesized by a conventional solid state reaction and an ion-exchange reaction, respectively. Superconductivity was observed at 4 K by Li intercalation and it was found that the superconducting volume fraction of the LT phase (~ 1.4%) is clearly larger than that of the HT phase (0.07%).

AB - We performed X-ray diffraction (XRD) and DC magnetic susceptibility measurements to elucidate the crystal structure and superconducting properties of KSr2Nb3O10. From the diffraction pattern indexing, it was found that KSr2Nb3O10 crystallizes with monoclinic symmetry, space group P21/m(11). We succeeded in preparing high temperature (HT) and low temperature (LT) phases of KSr2Nb3O10 powder samples synthesized by a conventional solid state reaction and an ion-exchange reaction, respectively. Superconductivity was observed at 4 K by Li intercalation and it was found that the superconducting volume fraction of the LT phase (~ 1.4%) is clearly larger than that of the HT phase (0.07%).

KW - Crystal structure

KW - Intercalation

KW - Nb-based compound

KW - Superconductivity

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