The Effect of Randomness on the Quantum Spin System Tl<SUB>1−<I>x</I></SUB>K<I><SUB>x</SUB></I>CuCl<SUB>3</SUB> with <I>x</I>=0.44 Studied by the Zero-Field Muon-Spin-Relaxation (ZF-μSR) Method

• Suzuki Takao

  Advanced Meson Science Laboratory, RIKEN (The Institute of Physical and Chemical Research)

• Yamada Fumiko

  Department of Physics, Tokyo Institute of Technology

• Watanabe Isao

  Advanced Meson Science Laboratory, RIKEN (The Institute of Physical and Chemical Research)

• Goto Takayuki

  Department of Physics, Sophia University

• Oosawa Akira

  Department of Physics, Sophia University

• Tanaka Hidekazu

  Department of Physics, Tokyo Institute of Technology

Bibliographic Information

Other Title

• The effect of randomness on the quantum spin system Tl1-xKxCuCl3 with x = 0.44 studied by the zero-field muon-spin-relaxation (ZF-μSR) method
• The effect of randomness on the quantum spin system Tl1 xKxCuCl3 with x 0 44 studied by the zero field muon spin relaxation ZF mSR method
• The Effect of Randomness on the Quantum Spin System Tl_1-<i>x</i>K_<i>x</i>CuCl₃ with <i>x</i>=0.44 Studied by the Zero-Field Muon-Spin-Relaxation (ZF-µSR) Method

Abstract

Zero-field muon-spin-relaxation (ZF-μSR) measurements were carried out down to 80 mK on the randomness bond system Tl_1−xK_xCuCl₃ with x=0.44. Time spectra are well fitted by the stretched exponential function exp(−λt)^β. The muon spin relaxation rate λ increases rapidly with decreasing temperature, and β tends to 0.5 at 80 mK. The divergent increase of λ suggests the critical slowing down of the frequency of the Cu-3d spin fluctuations toward a spin frozen state below 80 mK, and the root-exponential-like behavior of the time spectrum indicates that the origin of the relaxation is possibly the spatially-fixed fluctuating dilute moments.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 76 (7), 074704-074704, 2007

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• Tl<SUB>1−<I>x</I></SUB>K<I><SUB>x</SUB></I>CuCl<SUB>3</SUB>
• spin gap
• magnon
• Bose–Einstein condensation
• randomness
• Bose glass phase
• μSR

Details

• CRID: 1390282679170457472
• NII Article ID: 130005296968
• NII Article ID: 110006350768
• NII Article ID: 210000106790
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.76.074704
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 8814878
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8814878
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.76.074704
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed