Quantum tunnelling and decoherence in nanomagnets

Gedik, Zafer and Bozat, Özgür (2006) Quantum tunnelling and decoherence in nanomagnets. Physica Status Solidi.C - Current Topics in Solid State Physics, 3 (5). pp. 1268-1270. ISSN 1610-1634

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Official URL: http://www3.interscience.wiley.com/cgi-bin/abstract/112229538/ABSTRACT

Abstract

Starting from the observation that at very low temperatures an isolated nanomagnet can be treated as an effective two-state system, we introduce a model to study quantum tunnelling and decoherence phenomena. We assume that the total spin of the magnet interacts with a spin bath. We show that depending upon the interaction strengths the molecule can exhibit tunnelling with or without decoherence. We also investigate the case where the spin-spin interaction is mediated by phonons.

Item Type:	Article
Subjects:	Q Science > QC Physics
ID Code:	75
Deposited By:	Zafer Gedik
Deposited On:	04 Dec 2006 02:00
Last Modified:	17 Feb 2010 09:36

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