Phys. Rev. B 73, 214435 (2006) [5 pages]Collective magnetic excitation in a single-chain magnet by electron spin resonance measurementsReceived 19 April 2006; published 19 June 2006 Collective magnetic excitation of the single-chain magnet (SCM) has been observed using high-frequency electron spin resonance (ESR). The observed ESR mode is attributed to the spin wave excitation with strong magnetic anisotropy where its temperature dependence shows the continuous evolution of the short-range spin correlation inside the chain. The uniaxial anisotropy constants and the exchange couplings of the related SCM have been quantitatively deduced from our theoretical analysis. Moreover, the relaxation mechanism of the SCM is found to originate from a collective reversal of spins via the transverse exchange couplings between the molecular units. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.73.214435
DOI:
10.1103/PhysRevB.73.214435
PACS:
76.90.+d, 75.10.Pq, 75.30.Ds
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.