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Fermi surface revolution in CeRhIn5 and non-centrosymmetric superconductivity in CeIrSi3
- Source :
-
Physica B . Apr2008, Vol. 403 Issue 5-9, p963-967. 5p. - Publication Year :
- 2008
-
Abstract
- Abstract: Revolution of the pressure-induced heavy fermion state and superconductivity in an antiferromagnet CeRhIn5 have been established by high-pressure Fermi surface studies using the de Haas–van Alphen technique. A marked change of the 4f-electron nature from localized to itinerant is realized at a critical pressure under magnetic fields, together with a divergent tendency of the cyclotron mass at . The electronic state of CeIrSi3 with the non-centrosymmetric tetragonal structure is also tuned from the antiferromagnetic state to the superconducting state as a function of pressure. The upper critical field at pressure of 2.65GPa is found to be highly anisotropic: for and for , with the superconducting transition temperature . A large magnitude of and a large anisotropy of are characteristic, which reveals a new type of superconductivity closely related to the spin–orbit interaction based on the non-centrosymmetric crystal structure. [Copyright &y& Elsevier]
- Subjects :
- *FERMI surfaces
*SUPERCONDUCTIVITY
*FERMIONS
*ANTIFERROMAGNETISM
Subjects
Details
- Language :
- English
- ISSN :
- 09214526
- Volume :
- 403
- Issue :
- 5-9
- Database :
- Academic Search Index
- Journal :
- Physica B
- Publication Type :
- Academic Journal
- Accession number :
- 31396150
- Full Text :
- https://doi.org/10.1016/j.physb.2007.10.099