Field-induced 3D-LRO of Haldane-gap antiferromagnet NDMAZ

A. Koda, T. C. Kobayashi, K. Amaya, M. Yamashita

Research output: Contribution to journalConference article

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Abstract

The heat capacity and magnetization measurements of the single crystal of Haldane-gap antiferromagnet NDMAZ were carried out at low temperatures down to 0.1 K and under magnetic fields up to 14 T. We have observed three-dimensional long-range ordering of NDMAZ at around T≈0.3 K above H≈13 T (H∥c), which is ascribed to both the field-induced gap quenching and the existence of finite interchain interaction. Applying the higher external field, the transition temperature reaches up to 0.6 K at H = 14 T, showing a negative curvature with respect to the external field.

Original languageEnglish
Pages (from-to)443-445
Number of pages3
JournalUnknown Journal
Volume196
DOIs
Publication statusPublished - May 1 1999
EventProceedings of the 1998 7th European Magnetic Materials and Applications Conference, EMMA-98 - Zaragoza, Spain
Duration: Sep 9 1998Sep 12 1998

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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