Tunneling and EPR linewidths due to dislocations in Mn <Emphasis Type="Bold"/> acetate
Abstract
We compute the width and shape of the EPR and tunneling resonances due to dislocations in Mn12 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 Mn12.
- Publication:
-
European Physical Journal B
- Pub Date:
- September 2002
- DOI:
- 10.1140/epjb/e2002-00254-2
- arXiv:
- arXiv:cond-mat/0107586
- Bibcode:
- 2002EPJB...29....3G
- Keywords:
-
- PACS. 75.45.+j Macroscopic quantum phenomena in magnetic systems – 75.50.Tt Fine-particle systems; nanocrystalline materials;
- 75.45.+j;
- 75.50.Tt;
- Macroscopic quantum phenomena in magnetic systems;
- Fine-particle systems;
- nanocrystalline materials;
- Condensed Matter - Statistical Mechanics;
- Condensed Matter - Materials Science
- E-Print:
- 5 pages, 3 figures, submitted to EPJB