Influence of the Dzyaloshinskii-Moriya exchange interaction on quantum phase interference of spins

Abstract

Magnetization measurements of a Mn12mda wheel single-molecule magnet with a spin ground state of S = 7 show resonant tunneling and quantum phase interference, which are established by studying the tunnel rates as a function of a transverse field applied along the hard magnetization axis. Dzyaloshinskii-Moriya (DM) exchange interaction allows the tunneling between different spin multiplets. It is shown that the quantum phase interference of these transitions is strongly dependent on the direction of the DM vector.

arXiv comment5 pages, 5 figures

References in corpus (10)

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• Geometric-phase interference in a Mn_{12} single-molecule magnet with four-fold rotational symmetry
• Non-equilibrium transport through quantum dots with Dzyaloshinsky--Moriya--Kondo interaction
• Dzyaloshinskii-Moriya and dipole-dipole interactions affect coupling-based Landau-Majorana-Stückelberg-Zener transitions
• Dzyaloshinskii-Moriya interaction in transport through single molecule transistors
• Tunneling and inversion symmetry in single-molecule magnets: the case of the Mn12 wheel molecule
• Dynamic spin localization and gamma-magnets
• Quantum interference oscillations of the superparamagnetic blocking in an Fe8 molecular nanomagnet
• Comment on "Influence of Dzyaloshinskii-Moriya Exchange Interaction on Quantum Phase Interference of Spins"
• Quantum phase transitions in networks of Lipkin-Meshkov-Glick models
• Phase transition between quantum and classical regimes for the escape rate of dimeric molecular nanomagnets in a staggered magnetic field
• Chaotic dynamics and spin correlation functions in a chain of nanomagnets
• Low-Temperature Magnetization Dynamics of Magnetic Molecular Solids in a Swept Field
• Direct Spectroscopic Observation of Berry Phase Interference in the Ni${}_4$ Single-Molecule Magnet