Eur. Phys. J. B (2013) 86: 138
https://doi.org/10.1140/epjb/e2013-30917-6

Regular Article

Macroscopic quantum beats in a molecular magnet loosely fastened to the matrix

Department of Physics, Sejong University, 143747 Seoul, Republic of Korea

^a e-mail: gkim@sejong.ac.kr

Received: 10 October 2012
Received in final form: 20 December 2012
Published online: 8 April 2013

Abstract

It is shown that, in the presence of sound waves, rotational states play an important role in the spin oscillation of a free nanomagnet. Employing the rotating wave approximation and perturbation theory, we compute the magnetization dynamics generated by ultrasound and discuss optimal conditions under which this novel quantum effect can be observed in a rotating single-molecule magnet.