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 journal › Article

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
Externally publishedYes

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Spin fluctuations
Ground state
Phase transitions
Temperature
muons
ground state
temperature

Keywords

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

ASJC Scopus subject areas

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

Cite this

μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3. / Goto, T.; Suzuki, T.; Watanabe, I.; Kanada, K.; Saito, T.; Oosawa, A.; Manaka, H.

In: Physica B: Condensed Matter, Vol. 404, No. 5-7, 15.04.2009, p. 594-596.

Research output: Contribution to journal › Article

Goto, T, Suzuki, T, Watanabe, I, Kanada, K, Saito, T, Oosawa, A & Manaka, H 2009, 'μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3', Physica B: Condensed Matter, vol. 404, no. 5-7, pp. 594-596. https://doi.org/10.1016/j.physb.2008.11.107
Goto T, Suzuki T, Watanabe I, Kanada K, Saito T, Oosawa A et al. μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3. Physica B: Condensed Matter. 2009 Apr 15;404(5-7):594-596. https://doi.org/10.1016/j.physb.2008.11.107
Goto, T. ; Suzuki, T. ; Watanabe, I. ; Kanada, K. ; Saito, T. ; Oosawa, A. ; Manaka, H. / μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3. In: Physica B: Condensed Matter. 2009 ; Vol. 404, No. 5-7. pp. 594-596.
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AU - Watanabe, I.

AU - Kanada, K.

AU - Saito, T.

AU - Oosawa, A.

AU - Manaka, H.

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AB - 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.

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KW - NMR

KW - Spin-gap system

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