Electron and nuclear spin dynamics in antiferromagnetic molecular rings.
Phys Rev Lett
; 86(23): 5373-6, 2001 Jun 04.
Article
de En
| MEDLINE
| ID: mdl-11384501
ABSTRACT
We study theoretically the spin dynamics of antiferromagnetic molecular rings, such as the ferric wheel Fe10. For a single nuclear or impurity spin coupled to one of the electron spins of the ring, we calculate nuclear and electronic spin correlation functions and show that nuclear magnetic resonance (NMR) and electron spin resonance (ESR) techniques can be used to detect coherent tunneling of the Néel vector in these rings. The location of the NMR/ESR resonances gives the tunnel splitting and its linewidth an upper bound on the decoherence rate of the electron spin dynamics. We illustrate the experimental feasibility of our proposal with estimates for Fe10 molecules.
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Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Phys Rev Lett
Année:
2001
Type de document:
Article
Pays d'affiliation:
Suisse