GUANG-YU GUO2018-09-102018-09-10200203048853http://www.scopus.com/inward/record.url?eid=2-s2.0-0036464971&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/298005To unravel the mystery of the recently observed giant magnetic moments of Fe and Co in Cs films, orbital-polarization corrected relativistic spin density functional calculations have been performed. Unlike other transition-metal systems where the orbital magnetic moments are quenched, Fe and Co in Cs as well as in other alkali metals are found to possess a giant orbital moment of 2-3μB along with a large spin moment. Also, these free atom-like spin and orbital magnetic moments in Cs would not be squashed under large lattice contractions up to 23% around the impurity atoms. The induced moments on the host atoms are small. The results offer an explanation for the origin of the giant magnetic moments of Fe and Co in Cs films. © 2002 Elsevier Science B.V. All rights reserved.3d impurities; Alkali metals; Magnetic moments; Orbital momentsAlkali metals; Crystal impurities; Crystal lattices; Fermi level; Magnetic thin films; Quenching; Transition metals; Giant magnetic moments; Orbital moments; Magnetic momentsjournal article10.1016/S0304-8853(01)00791-02-s2.0-0036464971WOS:000175813900098