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

被引：26

作者：

Blinc, R

Cevc, P

Arcon, D

Dalal, NS

Achey, RM

机构：

[1] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[2] Florida State Univ, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.63.212401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The X-band excited-state electron paramagnetic resonance (EPR) spectra of Mn-12-acetate nanomagnet crystals has been measured. Three lines belonging to 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 detected 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 T1T2< 10(-15) s(2). Similarly broad excited-state EPR spectra were also observed in a Fe(8) single crystal.

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