2004/01/08 by P. Banerjee, X. Liu, Banerjee, P. +13
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0401130
4 pages, 5 figures
arxiv created 2004/01/08 · openalex publication_date 2004/01/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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.