Field-induced magnetic ordering in an alternating Heisenberg chain F 5PNN

Yasuo Yoshida, Kenji Yurue, Masaki Mitoh, Tatsuya Kawae, Yuko Hosokoshi, Katsuya Inoue, Minoru Kinoshita, Kazuyoshi Takeda

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We have found the field-induced magnetic ordering of an S = 1/2 alternating linear Heisenberg antiferromagnet F5PNN by measuring magnetic field dependence of the specific heat. A cusp-like anomaly is observed below 0.2 K between 3.5 and 6 T. From the extrapolation of H vs. T phase diagram to 0 K, the lower and the upper critical fields are expected to be about 3 and 7 T, respectively. The phase boundary is almost symmetric with respect to a horizontal line of H = 5 T. This behavior is consistent with the previously observed magnetization measurement in which magnetization began to increase at about 3 T and saturated at about 7 T.

Original languageEnglish
Pages (from-to)979-980
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberII
Publication statusPublished - May 2003

All Science Journal Classification (ASJC) codes

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


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