Acta Physica Polonica B

Vol. 34, No. 2, February 2003, page 427

Fermi Surface Studies of the Ferromagnetic Superconductor UGe2 Under High Pressure

T. Terashima, T. Matsumoto, C. Terakura, S. Uji, N. Kimura, M. Endo, T. Komatsubara, H. Aoki, K. Maezawa

We report de Haas--van Alphen effect measurements on UGe2 at pressures P up to \sim 18 kbar, which exceeds the critical pressure  Pc \sim 16 kbar for the suppression of ferromagnetism. Particular attention is given to the complicated pressure dependence of the Fermi surface and effective mass in an intermediate pressure region from \sim 11 kbar to Pc.

PACS numbers: 71.18.+y, 71.27.+a, 74.70.Tx

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