Tunneling and EPR linewidths due to dislocations in Mn-12 acetate
classification
❄️ cond-mat.stat-mech
cond-mat.mtrl-sci
keywords
dislocationsmn-12shapeacetateproduceresonancestunnelingbound
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We compute the width and shape of the EPR and tunneling resonances due to dislocations in Mn-12 acetate crystals. Uncorrelated dislocations produce the Gaussian shape of resonances while dislocations bound in pairs produce the Lorentzian shape. We stress that the uniaxial spin Hamiltonian together with crystal defects can explain the totality of experimental data on Mn-12.
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