Quantum interference oscillations of the superparamagnetic blocking in an Fe8 molecular nanomagnet
Burzurí, E. ; Luis, F. (Universidad de Zaragoza) ; Montero, O. ; Barbara, B. ; Ballou, R. ; Maegawa, S.
Resumen: We show that the dynamic magnetic susceptibility and the superparamagnetic blocking temperature of an Fe8 single molecule magnet oscillate as a function of the magnetic field Hx applied along its hard magnetic axis. These oscillations are associated with quantum interferences, tuned by Hx, between different spin tunneling paths linking two excited magnetic states. The oscillation period is determined by the quantum mixing between the ground S=10 and excited multiplets. These experiments enable us to quantify such mixing. We find that the weight of excited multiplets in the magnetic ground state of Fe8 amounts to approximately 11.6%.
Idioma: Inglés
DOI: 10.1103/PhysRevLett.111.057201
Año: 2013
Publicado en: PHYSICAL REVIEW LETTERS 111, 5 (2013), 057201 [5 pp]
ISSN: 0031-9007
Factor impacto JCR: 7.728 (2013)
Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 6 / 78 = 0.077 (2013) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/DGA/E98-MOLCHIP
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38318-C03
Tipo y forma: Article (Published version)
Área (Departamento): Física de la Materia Condensada (Departamento de Física de la Materia Condensada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.
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Idioma: Inglés
DOI: 10.1103/PhysRevLett.111.057201
Año: 2013
Publicado en: PHYSICAL REVIEW LETTERS 111, 5 (2013), 057201 [5 pp]
ISSN: 0031-9007
Factor impacto JCR: 7.728 (2013)
Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 6 / 78 = 0.077 (2013) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/DGA/E98-MOLCHIP
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38318-C03
Tipo y forma: Article (Published version)
Área (Departamento): Física de la Materia Condensada (Departamento de Física de la Materia Condensada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Exportado de SIDERAL (2017-11-16-11:05:32)
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Record created 2017-11-16, last modified 2017-11-17