Photon-assisted tunneling in a Fe8 single-molecule magnet -: art. no. 220407

被引：56
|
作者：
Sorace, L
Wernsdorfer, W
Thirion, C
Barra, AL
Pacchioni, M
Mailly, D
Barbara, B
机构：
[1] CNRS, UJF, Lab Louis Neel, F-38042 Grenoble 9, France
[2] CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble, France
[3] Univ Florence, Dipartimento Chim, I-50019 Sesto Fiorentino, Italy
[4] Univ Florence, INSTM, I-50019 Sesto Fiorentino, Italy
[5] CNRS, LPN, F-91460 Marcoussis, France
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 22期
关键词：
D O I：
10.1103/PhysRevB.68.220407
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The low-temperature spin dynamics of a Fe-8 single-molecule magnet was studied under circularly polarized electromagnetic radiation allowing us to establish clearly photon-assisted tunneling. This effect, while linear at low power, becomes highly nonlinear above a relatively low-power threshold. Heating due to phonon emission, spin-spin interactions, and coherent emission/absorption of photons might lead to the observed nonlinearity. These results are of importance if such systems are to be used as quantum computers.
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页数：4
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