Title

Three-Leaf Quantum Interference Clovers In A Trigonal Single-Molecule Magnet

Abstract

We report on a single-molecule magnet where the spatial arrangement of three manganese ions and their spin-orbit coupling tensor orientations result in threefold angular modulations of the magnetization tunneling rates and quantum interference patterns that mimic the form of a three-leaf clover. Although expected in all quantum tunneling of magnetization resonances for a trigonal molecular symmetry, the threefold modulation only appears at resonances for which a longitudinal magnetic field is applied (i.e., resonance numbers |k|>0). A sixfold transverse field modulation observed at resonance k=0 manifests as a direct consequence of a threefold corrugation of the spin-orbit coupling energy landscape, creating an effective longitudinal field which varies the resonance condition in the presence of a transverse field. The observations allow for an association between the trigonal distortion of the local spin-orbit interactions and the spatial disposition of the constituent ions, a finding that can be extrapolated to other systems where spin-orbit coupling plays a significant role. © 2014 American Physical Society.

Publication Date

8-18-2014

Publication Title

Physical Review Letters

Volume

113

Issue

8

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.113.087201

Socpus ID

84907339852 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84907339852

This document is currently not available here.

Share

COinS