Feb, 2003
De Haas-van Alphen experiments in the quantum critical region of cerium and uranium compounds
ACTA PHYSICA POLONICA B
- Volume
- 34
- Number
- 2
- First page
- 667
- Last page
- 678
- Language
- English
- Publishing type
- Research paper (scientific journal)
- Publisher
- JAGIELLONIAN UNIV PRESS
When pressure is applied to the cerium and uranium compounds, their magnetic ordering temperatures are suppressed and become zero at a critical pressure P-c. Around P-c non-Fermi liquid and/or superconductivity are observed. We clarified a change of the electronic state via the de Haas-van Alphen (dHvA) experiment when pressure crosses P-c. The dHvA experiment under pressure was done for antiferromagnets CeRh2Si2, CeRhIn5 and URu2Si2, and a ferromagnet UGe2. We find an abrupt change of the Fermi surface for CeRh2Si2 and UGe2 when crossing P-c, indicating a first-order like phase transition. For CeRhIn5 and URu2Si2, a change of the cyclotron mass is clearly observed.
- Link information
- ID information
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- ISSN : 0587-4254
- eISSN : 1509-5770
- Web of Science ID : WOS:000181544200079