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Observation of antiferromagnetic spin-flop transition in λ-type BETS salts using AFM microcantilever

  • Poster Session III: Molecular Magnetism, Phase Transitions And Charge Ordering, Reu Presentations
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Abstract

Antiferromagnetic spin-flop transitions in a series of λ-(BETS)2FeBrxCl4-x are observed using piezoresistive AFM microcantilever. The measurements are carried out on a tiny single crystal using a sample rotator and the easy axis changes with increasing the bromine content x. The Néel temperature and spin-flop transition field also rise with increasing the bromine content x, suggesting an enhancement of π-d interactions by replacement of chlorine with bromine atoms in this mixed-halide anion system.

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Authors and Affiliations

  1. Nanotechnology Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, 305-8568, Ibaraki, Japan

    H. Tanaka & S. Hara

  2. Institute for Molecular Science (IMS), Myodaiji 38, Okazaki, 444-8585, Aichi, Japan

    H-B. Cui & H. Kobayashi

  3. Research Centre for Spectrochemistry, the University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033, Tokyo, Japan

    A. Kobayashi

  4. CREST, Japan Science and Technology Corporation, Kawaguchi, 332-0012, Saitama, Japan

    M. Tokumoto & H. Kobayashi

Authors
  1. H. Tanaka
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  2. S. Hara
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  3. M. Tokumoto
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  4. H-B. Cui
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  5. H. Kobayashi
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  6. A. Kobayashi
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Tanaka, H., Hara, S., Tokumoto, M. et al. Observation of antiferromagnetic spin-flop transition in λ-type BETS salts using AFM microcantilever. J Low Temp Phys 142, 605–608 (2006). https://doi.org/10.1007/BF02679580

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  • DOI: https://doi.org/10.1007/BF02679580

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