Evolution of quasiparticle properties in UGe2 with hydrostatic pressure studied via the de Haas-van Alphen effect - art. no. 166401

Authors
Terashima, T Matsumoto, T Terakura, C Uji, S Kimura, N Endo, M Komatsubara, T Aoki, H
Citation
T. Terashima et al., Evolution of quasiparticle properties in UGe2 with hydrostatic pressure studied via the de Haas-van Alphen effect - art. no. 166401, PHYS REV L, 8716(16), 2001, pp. 6401
Citations number
26
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8716
Issue
16
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011015)8716:16<6401:EOQPIU>2.0.ZU;2-V
Abstract
We report measurements of the de Haas-van Alphen effect in UGe2 under hydro static pressures up to 17.6 kbar, exceeding the critical pressure P-c for t he suppression of ferromagnetism. A discontinuous change of the Fermi surfa ce is found to occur across P-c. Substantially enhanced effective masses (s imilar to 40m(e)) are found near P-c on both the ferromagnetic and the para magnetic sides.