Quasistatic magnetism in the breathing pyrochlore antiferromagnets LiGa1-xInxCr4 O8 (x = 0.2, 0.5)

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • W. Lee - , Institute for Basic Science (Autor:in)
  • S. Yoon - , Chung-Ang University (Autor:in)
  • Y. S. Choi - , Sungkyunkwan University (SKKU) (Autor:in)
  • S. H. Do - , University of Tennessee, Knoxville (Autor:in)
  • A. N. Ponomaryov - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • S. A. Zvyagin - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • D. Gorbunov - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • J. Wosnitza - , Exzellenzcluster ct.qmat: Komplexität und Topologie in Quantenmaterialien, Professur für Physik in hohen Magnetfeldern (gB/HZDR), Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • A. Koda - , High Energy Accelerator Research Organization, Institute of Materials Structure Science (Autor:in)
  • W. T. Chen - , National Taiwan University, National Science and Technology Council Taiwan (NSTC) (Autor:in)
  • K. Y. Choi - , Sungkyunkwan University (SKKU) (Autor:in)
  • S. Lee - , Institute for Basic Science (Autor:in)

Abstract

We report magnetic susceptibility, high-field magnetization, muon spin relaxation, and electron spin resonance measurements of the breathing pyrochlore antiferromagnets LiGa1-xInxCr4O8 (x=0.2, 0.5). Unlike the previously proposed spin-glass-like phase for 0.1<x<0.75, we find no signature for spin glassiness and phase segregation in both the x=0.2 and 0.5 compounds. Instead, we identify a two-step magnetic transition with a partial spin freezing at T∗=12K (x=0.2) and 9 K (x=0.5) followed by quasistatic order at Tm=6K (x=0.2) and 3 K for (x=0.5). In addition, for Tm<T<T∗, we observe evidence of a competition between fast and slow spin dynamics, suggesting a thermal and temporal distribution of spin correlations. Our findings underscore the possibility of realizing novel magnetic phases by tuning bond alternation and introducing bond disorder through chemical substitution.

Details

OriginalspracheEnglisch
Aufsatznummer144435
FachzeitschriftPhysical Review B
Jahrgang110
Ausgabenummer14
PublikationsstatusVeröffentlicht - 1 Okt. 2024
Peer-Review-StatusJa