Spin susceptibility in YBa2Cu4O8: 17O and 63Cu NMR study

Guo-Qing Zheng, Y. Kitaoka, K. Asayama, Y. Kodama

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The 17O and 63Cu Knight shifts which are coupled to the spin susceptibility have been measured in the CuO2 plane and the CuO chain in the high-Tc superconductor YBa2Cu4O8. The shifts in the plane decrease with decreasing temperature, with small anomalies at Tc. In the chain, however, the shifts are temperature-independent in the normal state and those associated with the spin susceptibility along the Cu-O bonding decrease distinctly below Tc. Noting that the T-dependent susceptibility is dominated by the planar Cu2+, the hyperfine fields at Cu and O were estimated to be Hab(Cu2)=(185±10) kOe/μB and Hc(O 2,3)=(85±8)kOem/μB, in agreement with YBa2Cu3O7.

Original languageEnglish
Pages (from-to)1001-1003
Number of pages3
JournalPhysica B: Condensed Matter
Volume186-188
Issue numberC
DOIs
Publication statusPublished - May 2 1993
Externally publishedYes

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Nuclear magnetic resonance
magnetic permeability
nuclear magnetic resonance
Superconducting materials
shift
Temperature
anomalies
temperature
barium copper yttrium oxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Spin susceptibility in YBa2Cu4O8 : 17O and 63Cu NMR study. / Zheng, Guo-Qing; Kitaoka, Y.; Asayama, K.; Kodama, Y.

In: Physica B: Condensed Matter, Vol. 186-188, No. C, 02.05.1993, p. 1001-1003.

Research output: Contribution to journalArticle

Zheng, Guo-Qing ; Kitaoka, Y. ; Asayama, K. ; Kodama, Y. / Spin susceptibility in YBa2Cu4O8 : 17O and 63Cu NMR study. In: Physica B: Condensed Matter. 1993 ; Vol. 186-188, No. C. pp. 1001-1003.
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