Quantum phase interference (Berry phase) in single-molecule magnets of [Mn12]2-

被引:87
作者
Wernsdorfer, W
Soler, M
Christou, G
Hendrickson, DN
机构
[1] Univ Grenoble 1, CNRS, Lab Louis Neel, F-38042 Grenoble 9, France
[2] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA
[3] Indiana Univ, Ctr Mol Struct, Bloomington, IN 47405 USA
[4] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92037 USA
关键词
D O I
10.1063/1.1450788
中图分类号
O59 [应用物理学];
学科分类号
摘要
Magnetization measurements of molecular clusters [Mn-12](2-) with a spin ground state of S=10 show resonance tunneling at avoided energy level crossings. The observed oscillations of the tunnel probability as a function of the magnetic field applied along the hard anisotropy axis are due to topological quantum phase interference of two tunnel paths of opposite windings. [Mn-12](2-) is therefore the second molecular cluster exhibiting quantum phase interference. (C) 2002 American Institute of Physics.
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收藏
页码:7164 / 7166
页数:3
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