2026-04-17T06:12:16Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/132742025-12-05T01:35:06Zcom_2072_1057col_2072_478917col_2072_478933
RECERCAT
author
Evangelisti, Marco
author
Luis Vitalla, Fernando
author
Mettes, F. L.
author
Aliaga-Alcalde, Núria
author
Aromí Bedmar, Guillem
author
Alonso, J. J.
author
Christou, G.
author
Jongh, L. J. de
2010-07-05T09:35:20Z2010-07-05T09:35:20Z2004
Can magnetic interactions between single-molecule magnets (SMMs) in a crystal establish long-range magnetic order at low temperatures deep in the quantum regime, where the only electron spin fluctuations are due to incoherent magnetic quantum tunneling (MQT)? Put inversely: can MQT provide the temperature dependent fluctuations needed to destroy the ordered state above some finite Tc, although it should basically itself be a T-independent process? Our experiments on two novel Mn4 SMMs provide a positive answer to the above, showing at the same time that MQT in the SMMs has to involve spin-lattice coupling at a relaxation rate equaling that predicted and observed recently for nuclear-spin-mediated quantum relaxation.
(c) American Physical Society, 2004 info:eu-repo/semantics/openAccess
Materials
Propietats magnètiques
Magnetic properties and materials
Magnetic long-range order induced by quantum ralaxation in single-molecule magnets
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion