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Giant and time-dependent magnetocaloric effect in high-spin molecular magnets
Torres Canals, Francisco (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Hernández, J. M. (Universitat de Barcelona. Departamento Fı́sica Fonamental)
Bohigas i Janoher, Xavier (Universitat Politècnica de Catalunya. Departament Física i Enginyeria Nuclear)
Tejada, J. (Universitat de Barcelona. Departament Física Fonamental)
American Physical Society

Date: 2000
Abstract: We have measured and calculated the magnetocaloric effect in macroscopic samples of oriented high-spin molecular clusters like Mn12 and Fe8 as a function of the temperature and both the intensity and the sweeping rate of the applied magnetic field. We have observed a high magnetic entropy variation around the blocking temperature of the magnetic moment of molecules and calculated the shift of the entropy variation and cooling temperature, with the sweeping rate of the magnetic field.
Rights: Tots els drets reservats.
Language: Anglès
Document: article ; recerca ; publishedVersion
Subject: Entropy ; Magnetic fields ; Magnetocaloric effect ; Atomic and molecular clusters ; Magnetic field measurements ; Magnetic moments ; Molecular magnets
Published in: Applied physics letters, Vol. 77, Num. 20 (September 2000) , p. 3248-3250, ISSN 1077-3118

DOI: 10.1063/1.1325393

4 p, 293.8 KB

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Articles > Research articles
Articles > Published articles

 Record created 2014-02-26, last modified 2020-08-22

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