Title

Asymmetric Berry-Phase Interference Patterns In A Single-Molecule Magnet

Abstract

A Mn4 single-molecule magnet displays asymmetric Berry-phase interference patterns in the transverse-field (HT) dependence of the magnetization tunneling probability when a longitudinal field (HL) is present, contrary to symmetric patterns observed for HL=0. Reversal of HL results in a reflection of the transverse-field asymmetry about HT=0, as expected on the basis of the time-reversal invariance of the spin-orbit Hamiltonian which is responsible for the tunneling oscillations. A fascinating motion of Berry-phase minima within the transverse-field magnitude-direction phase space results from a competition between noncollinear magnetoanisotropy tensors at the two distinct Mn sites. © 2011 American Physical Society.

Publication Date

5-31-2011

Publication Title

Physical Review Letters

Volume

106

Issue

22

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.106.227201

Socpus ID

79960650613 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79960650613

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