μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3

T. Goto, T. Suzuki, I. Watanabe, K. Kanada, T. Saito, A. Oosawa, H. Manaka

Research output: Contribution to journalArticlepeer-review

Abstract

Measurements of the macroscopic properties have indicated that the bond-disordered spin-gap system (CH3)2CHNH3-Cu(ClxBr1-x)3 is gapless when x is between 0.44 and 0.87. Using muon spin relaxation to investigate the microscopic properties of a sample with x=0.35, we observed a dynamical spin fluctuation, whose characteristic frequency decreased with decreasing temperature, indicating a magnetic ground state.

Original languageEnglish
Pages (from-to)594-596
Number of pages3
JournalPhysica B: Condensed Matter
Volume404
Issue number5-7
DOIs
Publication statusPublished - 2009 Apr 15

Keywords

  • Bond-disorder
  • NMR
  • Spin-gap system
  • μSR

ASJC Scopus subject areas

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

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