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Effect of magnetic field on the specific heats of intercalation compounds Mx TiS2 (M=3d transition metals)

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Abstract

Specific heats of single crystals of intercalation compounds MxTiS2 (M=Mn, Fe, Co, and Ni) have been measured using ac calorimetric method over the temperature range T = 0.38–14 K under magnetic fields up to 4.5 T. Considering the lattice dynamical properties of these intercalates, we have analyzed the observed specific heat data C, which can be expressed by the sum of electronic, lattice, magnetic, and anomalous terms, C = γT + βT3 + Cmag + Ca, where Ca is of a Schottky type. The temperature and magnetic field dependences of γ and Cmag are discussed from various viewpoints, such as existing spin fluctuation model, which reveals that the itinerant electron picture is appropriate to understand the electronic and magnetic properties of this material system.

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Authors and Affiliations

  1. Department of Materials Science, Faculty of Science, Hiroshima Unversity, 739, Higashi-Hiroshima, Japan

    Kouichi Takase, Hiroshi Negishi, Minoru Sasaki & Masasi Inoue

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  1. Kouichi Takase
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  2. Hiroshi Negishi
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  3. Minoru Sasaki
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  4. Masasi Inoue
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Takase, K., Negishi, H., Sasaki, M. et al. Effect of magnetic field on the specific heats of intercalation compounds Mx TiS2 (M=3d transition metals). J Low Temp Phys 103, 107–127 (1996). https://doi.org/10.1007/BF00754659

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  • DOI: https://doi.org/10.1007/BF00754659

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