Magnetic and superconducting phase diagram in oxybromite cuprate Ca 2-xNa xCuO 2Br 2

S. Kuroiwa, Y. Zenitani, M. Yamazawa, Y. Tomita, Jun Akimitsu, K. Ohishi, A. Koda, S. R. Saha, R. Kadono, I. Watanabe, S. Ohira

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A comprehensive magnetic and superconducting phase diagram determined by muon spin rotation/relaxation (μSR) is presented for Ca2-xNaxCuO2Br2 which has apical bromine atoms. Evidence for antiferromagnetic (AF) order in lightly doped samples and that for quasi-static spin glass (SG)-like state in moderately doped ones are obtained by ZF-μSR at low temperatures. While the phase diagram is qualitatively similar to that in typical 2-1-4 cuprates including Ca2-xNaxCuO2Cl2 and La2-xSrxCuO4, it exhibits a slight shift (expansion) over the x axis.

Original languageEnglish
Pages (from-to)75-78
Number of pages4
JournalPhysica B: Condensed Matter
Volume374-375
DOIs
Publication statusPublished - Mar 31 2006
Externally publishedYes

Fingerprint

cuprates
Phase diagrams
phase diagrams
Bromine
muon spin rotation
Spin glass
bromine
spin glass
Atoms
expansion
shift
atoms
Temperature

Keywords

  • μSR
  • Ca Na CuO Br
  • Halogen atom
  • Magnetic phase diagram

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Magnetic and superconducting phase diagram in oxybromite cuprate Ca 2-xNa xCuO 2Br 2 . / Kuroiwa, S.; Zenitani, Y.; Yamazawa, M.; Tomita, Y.; Akimitsu, Jun; Ohishi, K.; Koda, A.; Saha, S. R.; Kadono, R.; Watanabe, I.; Ohira, S.

In: Physica B: Condensed Matter, Vol. 374-375, 31.03.2006, p. 75-78.

Research output: Contribution to journalArticle

Kuroiwa, S, Zenitani, Y, Yamazawa, M, Tomita, Y, Akimitsu, J, Ohishi, K, Koda, A, Saha, SR, Kadono, R, Watanabe, I & Ohira, S 2006, 'Magnetic and superconducting phase diagram in oxybromite cuprate Ca 2-xNa xCuO 2Br 2 ', Physica B: Condensed Matter, vol. 374-375, pp. 75-78. https://doi.org/10.1016/j.physb.2005.11.019
Kuroiwa, S. ; Zenitani, Y. ; Yamazawa, M. ; Tomita, Y. ; Akimitsu, Jun ; Ohishi, K. ; Koda, A. ; Saha, S. R. ; Kadono, R. ; Watanabe, I. ; Ohira, S. / Magnetic and superconducting phase diagram in oxybromite cuprate Ca 2-xNa xCuO 2Br 2 . In: Physica B: Condensed Matter. 2006 ; Vol. 374-375. pp. 75-78.
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AU - Kuroiwa, S.

AU - Zenitani, Y.

AU - Yamazawa, M.

AU - Tomita, Y.

AU - Akimitsu, Jun

AU - Ohishi, K.

AU - Koda, A.

AU - Saha, S. R.

AU - Kadono, R.

AU - Watanabe, I.

AU - Ohira, S.

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AB - A comprehensive magnetic and superconducting phase diagram determined by muon spin rotation/relaxation (μSR) is presented for Ca2-xNaxCuO2Br2 which has apical bromine atoms. Evidence for antiferromagnetic (AF) order in lightly doped samples and that for quasi-static spin glass (SG)-like state in moderately doped ones are obtained by ZF-μSR at low temperatures. While the phase diagram is qualitatively similar to that in typical 2-1-4 cuprates including Ca2-xNaxCuO2Cl2 and La2-xSrxCuO4, it exhibits a slight shift (expansion) over the x axis.

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