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Quantum Phase Interference and Spin-Parity inMn12Single-Molecule Magnets
2005
Physical Review Letters
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Magnetization measurements of Mn12 molecular nanomagnets with spin ground states of S = 10 and S = 19/2 showresonance 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. Spin-parity dependent tunneling is established by comparing the quantum phase interference of integer and half-integer spin systems.
doi:10.1103/physrevlett.95.037203
pmid:16090768
fatcat:rvivsdknbjcvnlr6vkleuwyou4