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Magnetotherma properties of molecule-based materials (Articolo in rivista)

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Magnetotherma properties of molecule-based materials (Articolo in rivista) (literal)

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Evangelisti, M; Luis, F; de Jongh, LJ; Affronte, M (2006)
Magnetotherma properties of molecule-based materials
in Journal of materials chemistry (Print)
(literal)

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CNR, INFM, Natl Res Ctr Nanostruct & Biosyst Surfaces, I-41100 Modena, Italy; Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain; Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands; Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy (literal)

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We critically review recent results obtained by studying the low-temperature specific heat of some of the most popular molecule-based materials. After introducing the experimental techniques and basic theoretical framework needed for heat capacity determination and understanding, we report on the magnetothermal properties of molecular antiferromagnetic wheels. For selected molecular high-spin clusters, particular emphasis is devoted to magnetic quantum tunnelling and coherence as well as collective phenomena as probed by heat capacity experiments. We discuss also the possibilities of application of molecule-based materials for magneto-cooling at low temperatures and the limitations in other temperature ranges. Perspectives for future developments are mentioned as well. (literal)

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