期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.157202
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资金
- Deutsche Forschungsgemeinschaft (DFG)
- U.S. National Science Foundation [CHE-0414555]
The antiferromagnetic molecular wheel Fe-18 of 18 exchange-coupled Fe-III ions has been studied by magnetic torque, magnetization, and inelastic neutron scattering. The combined data show that the low-temperature magnetism of Fe-18 is very accurately described by the Neel-vector tunneling (NVT) scenario, as unfolded by semiclassical theory. In addition, the magnetic torque as a function of applied field exhibits oscillations that reflect the oscillations in the NVT splitting with field due to quantum phase interference.
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