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.

引用

页数：4

共 27 条

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