QUANTUM PHASE INTERFERENCE IN MAGNETIC MOLECULAR CLUSTERS

Author:

JIN YAN-HONG12,NIE YI-HANG23,LI ZHI-JIAN2,LIANG J.-Q.24,PU F.-C.15

Affiliation:

1. Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China

2. Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan, Shanxi 030006, P.R. China

3. Department of Physics, Yanbei Normal Institute, Datong, Shanxi 037000, P.R. China

4. Department of Physics, University of Kaiserslautern, D-67653, Kaiserslautern, Germany

5. Department of Physics, Guangzhou Normal College, Guangzhou, Guangdong 510400, P.R. China

Abstract

The oscillation of tunnel splitting in Fe8 molecular clusters is obtained as a function of magnetic field applied along the hard axis by means of the instanton method with both effective potential field description of quantum spin system and the semiclassical treatment. The theoretical splittings of the instanton method are compared with the numerical result by diagonalization of the spin Hamilton operator and experimental observations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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