Antiferromagnetic Ordering on CoO(001) Studied by Metastable Helium Beam Diffraction

P. Banerjee; X. Liu; M. Farzaneh; C. R. Willis; W. Franzen; M. El-Batanouny; V. Staemmler

Antiferromagnetic Ordering on CoO(001) Studied by Metastable Helium Beam Diffraction

Strongly Correlated Electrons 2007-05-23 v1

Authors: P. Banerjee , X. Liu , M. Farzaneh , C. R. Willis , W. Franzen , M. El-Batanouny , V. Staemmler

Abstract

Magnetic diffractive scattering of coherent metastable helium atomic beams from CoO(001) surfaces reveal the presence of an anomalous enhancement in the intensity of the half-order antiferromagnetic diffraction peak over the temperature range of 250-320K. Electronic cluster calculations based on Hartree-Fock states with configuration interactions, together with mean-field and Monte Carlo studies of this system suggest that this behavior is associated with low-lying surface spin excited states.

Keywords

magnetic structure phase transitions multiferroic

Cite

@article{arxiv.cond-mat/0401130,
  title  = {Antiferromagnetic Ordering on CoO(001) Studied by Metastable Helium Beam Diffraction},
  author = {P. Banerjee and X. Liu and M. Farzaneh and C. R. Willis and W. Franzen and M. El-Batanouny and V. Staemmler},
  journal= {arXiv preprint arXiv:cond-mat/0401130},
  year   = {2007}
}

Comments

4 pages, 5 figures

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