Ferromagnetism and possible heavy-fermion behavior in single crystals of NdOs4Sb12
- Autor(en)
- Pei Chun Ho, William M. Yuhasz, N P Butch, Neil A. Frederick, T A Sayles, J R Jeffries, M. Brian Maple, Jonathan B. Betts, A H Lacerda, Peter Franz Rogl, Gerald Giester
- Abstrakt
Single crystals of the filled-skutterudite compound NdOs4Sb12 have been investigated by means of electrical resistivity, magnetization, and specific heat measurements. The NdOs4Sb12 crystals have the LaFe4P12-type cubic structure with a lattice parameter of 9.3. Possible heavy-fermion behavior is inferred from specific heat measurements, which reveal a large electronic specific heat coefficient ? 520mJ molK2, corresponding to an effective mass m* 98me. Features related to a ferromagnetic transition at ~0.9K can be observed in electrical resistivity, magnetization, and specific heat. Conventional Arrott-plot analysis indicates that NdOs4Sb12 conforms to mean-field ferromagnetism. Π2005 The American Physical Society.
- Organisation(en)
- Institut für Physikalische Chemie, Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- University of California, San Diego, National High Magnetic Field Laboratory
- Journal
- Physical Review B
- Band
- 72
- Seiten
- 1-9
- Anzahl der Seiten
- 9
- ISSN
- 1098-0121
- Publikationsdatum
- 2005
- Peer-reviewed
- Ja
- ÖFOS 2012
- 105105 Geochemie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/fd7f8929-e1f8-408f-99f5-7420416c5197