De haas-van alphen effect in ZrZn2 under pressure: Crossover between two magnetic states

N. Kimura, M. Endo, T. Isshiki, S. Minagawa, A. Ochiai, Hayuyoshi Aoki, T. Terashima, S. Uji, T. Matsumoto, G. G. Lonzarich

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Abstract

The measurement of the de Hass-van Alphen effect in ZrZn2 under hydrostatic pressure where curi temperature vanishes, was described. The Fermi surface (FS) properties of ZrZn2 at ambient pressure was investegated and dHvA measurement were found consistent with energy band calculations. The low pressure study shows that the standard model for metallic magnetism, the Stoner-Wohlfarth (SW) model cannot account for the magnetic field dependence of the dHvA splitting. The new phase diagram for ZrZn2 predicts the existence of a first order quantum critical point at a small negative pressure.

Original languageEnglish
Article number197002
Pages (from-to)197002-1-197002-4
JournalPhysical review letters
Volume92
Issue number19
DOIs
Publication statusPublished - 2004 May 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kimura, N., Endo, M., Isshiki, T., Minagawa, S., Ochiai, A., Aoki, H., Terashima, T., Uji, S., Matsumoto, T., & Lonzarich, G. G. (2004). De haas-van alphen effect in ZrZn2 under pressure: Crossover between two magnetic states. Physical review letters, 92(19), 197002-1-197002-4. [197002]. https://doi.org/10.1103/PhysRevLett.92.197002