English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Heisenberg dimer single molecule magnets in a strong magnetic field

MPS-Authors
There are no MPG-Authors available
External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Efremov, D., & Klemm, R. (2002). Heisenberg dimer single molecule magnets in a strong magnetic field. PHYSICAL REVIEW B, 66(17): 174427. doi:10.1103/PhysRevB.66.174427.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-5B1B-2
Abstract
We calculate the static and dynamic properties of single crystal, single molecule magnets consisting of equal spin S=1/2 or 5/2 dimers. The spins in each dimer interact with each other via the Heisenberg exchange interaction and with the magnetic induction B via the Zeeman interaction, and interdimer interactions are negligible. For antiferromagnetic couplings, the static magnetization and specific heat exhibit interesting low-temperature T and strong B quantum effects. We calculate the frequency spectrum of the Fourier transform of the real part of the time autocorrelation function C-11(t) for arbitrary T, B, and compare our results with those obtained for classical spins. We also calculate the inelastic neutron magnetic dynamical structure factor S(q,omega) at arbitrary T, B.