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Titolo:
Electron and nuclear spin dynamics in antiferromagnetic molecular rings
Autore:
Meier, F; Loss, D;
Indirizzi:
Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland Univ Basel Basel Switzerland CH-4056 Astron, CH-4056 Basel, Switzerland
Titolo Testata:
PHYSICAL REVIEW LETTERS
fascicolo: 23, volume: 86, anno: 2001,
pagine: 5373 - 5376
SICI:
0031-9007(20010604)86:23<5373:EANSDI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MACROSCOPIC QUANTUM COHERENCE; ENTRAPPING ALKALINE IONS; MAGNETIC-ANISOTROPY; PROTON NMR; RELAXATION; CLUSTERS; FE-10; CRYSTAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Meier, F Univ Basel, Dept Phys & Astron, Klingelbergstr 82, CH-4056 Basel,Switzerland Univ Basel Klingelbergstr 82 Basel Switzerland CH-4056 itzerland
Citazione:
F. Meier e D. Loss, "Electron and nuclear spin dynamics in antiferromagnetic molecular rings", PHYS REV L, 86(23), 2001, pp. 5373-5376

Abstract

We study theoretically the spin dynamics of antiferromagnetic molecular rings, such as the ferric wheel Fe-10. 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 detectcoherent tunneling of the Neel 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 Fe-10 molecules.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 07:54:12