Excited-state X-band EPR in a molecular cluster nanomagnet - art. no. 212401

Citation
R. Blinc et al., Excited-state X-band EPR in a molecular cluster nanomagnet - art. no. 212401, PHYS REV B, 6321(21), 2001, pp. 2401
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6321
Issue
21
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010601)6321:21<2401:EXEIAM>2.0.ZU;2-P
Abstract
The X-band excited-state electron paramagnetic resonance (EPR) spectra of M n-12-acetate nanomagnet crystals has been measured. Three lines belonging t o the m = -1 <-> 0 transition at H-C = 600 G and to the m = 0 <-> -1 and m = -2 <-> -1 high-field transitions at 7800 and 9200 G, respectively, were d etected below 50 K in agreement with the energy level scheme obtained from high-field EPR. The lines are rather broad. T-2 is shorter than 30 ns and T 1T2< 10(-15) s(2). Similarly broad excited-state EPR spectra were also obse rved in a Fe(8) single crystal.