2024-03-28T08:35:28Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1178222016-02-18T03:17:17Zcom_10261_31com_10261_3col_10261_284
Quantum interference oscillations of the superparamagnetic blocking in an Fe8 molecular nanomagnet
Burzurí, Enrique
Luis, Fernando
Montero, Oscar
Barbara, B.
Ballou, R.
Maegawa, S.
Gobierno de Aragón
Ministerio de Economía y Competitividad (España)
Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).
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%. © 2013 American Physical Society.
The present work has been partly funded trough the Spanish MINECO (Grant No. MAT2012-38318-C03) and the Gobierno de Aragón (Project MOLCHIP).
Peer Reviewed
2015-07-10T10:20:12Z
2015-07-10T10:20:12Z
2013
2015-07-10T10:20:13Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1103/PhysRevLett.111.057201
issn: 0031-9007
e-issn: 1079-7114
Physical Review Letters 111: 057201 (2013)
http://hdl.handle.net/10261/117822
10.1103/PhysRevLett.111.057201
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100010067
Publisher's version
http://dx.doi.org/10.1103/PhysRevLett.111.057201
Sí
open
American Physical Society