Magnetic properties of a random-bond ladder Cu2(C 5H12N2)2(Cl1-xBr x)4 at low temperatures

Hiroyuki Deguchi, Hatsuo Watanabe, Shuichi Yamamoto, Seishi Takagi, Masaki Mito, Tatsuya Kawae, Kazuyoshi Takeda, Hiroyuki Nojiri, Mitsuhiro Motokawa

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


Magnetic measurements have been performed to investigate random-bond effects on a spin-ladder system. We synthesize a random mixture compound Cu 2(C5H12N2)2(Cl 1-xBrx)4 which is expected to form a spin ladder with random-exchange legs and rungs. The magnetic properties of the compound are rather different from those of the pure systems. Paramagnetic divergence is significantly observed for the susceptibility at low temperatures and the magnetization appears even at low fields. The results suggest that the ground state of the random-bond ladder is a Griffiths phase.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Publication statusPublished - 2002
EventProceedings of the Interdisciplinary Symposium on Multifunctionality of Inorganic , Organic, and Their Hybrid Solids - Honolulu, HI, United States
Duration: 2000 Dec 152000 Dec 18


  • Cu(CHN)(Cl Br)
  • Griffiths phase
  • Magnetization
  • Random-bond
  • Spin ladder
  • Susceptibility


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