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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2004     Display Documents

ID: 192968.0, MPI für Festkörperforschung / FKF Publikationen 2004
Level crossing in a molecular Cr8 ring
Authors:Affronte, M.; Guidi, T.; Caciuffo, R.; Carretta, S.; Amoretti, G.; Hinderer, J.; Sheikin, I.; Smith, A. A.; Winpenny, R. E. P.; van Slageren, J.; Gatteschi, D.
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Journal of Magnetism and Magnetic Materials
Start Page:1050
End Page:1051
Review Status:not specified
Audience:Not Specified
Abstract / Description:The heat capacity of a molecular Cr-8 ring was measured as a function
of temperature and magnetic field in order to follow the evolution of
the Schottky anomaly through the first (S = 0 to \1, - I >) level
crossing occurring at B-c1 = 6.9 T. The results are interpreted within
the framework of a spin Hamiltonian approach and they nicely fit the
pattern of the energy levels derived by inelastic neutron spectroscopy.
At B-c1, the Schottky anomaly almost vanishes suggesting that a true
crossing occurs in Cr-8 in contrast to what was observed for ferric
wheels. (C) 2004 Elsevier B.V. All rights reserved.
Free Keywords:molecular nanomagnets; heat capacity; level crossing
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:Univ Modena, Dipartimento Fis, INFMS, Natl Res Ctr Nanosruct & Biosyst Surfaces, I-41100 Modena, Italy.
; Univ Politecn Marche, Dipartimento Fis & Ingn Mat, INFM, I-60131 Ancona, Italy.
; Univ Parma, Dipartimento Fis, INFM, I-43100 Parma, Italy.
; CNRS, F-38042 Grenoble, France.
; MPI, FKF, GHMFL, F-38042 Grenoble, France.
; Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England.
; Univ Florence, INSTM, I-50019 Sesto Fiorention, Italy.
Identifiers:ISI:000222236700129 [ID No:1]
ISSN:0304-8853 [ID No:2]
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