Photoelectron spectroscopy study of the5flocalization in Pu

作者: L. Havela , T. Gouder , F. Wastin , J. Rebizant

DOI: 10.1103/PHYSREVB.65.235118

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摘要: X-ray photoelectron spectroscopy and high-resolution ultraviolet studies were performed on thin Pu layers compared with the bulk surfaces prepared at various temperatures. We followed process of reconstruction α-Pu surface into a δ-Pu type. Its kinetics depends strongly temperature. The electronic structure varies markedly thickness localization 5f states can be achieved in case ultrathin deposited Mg. valence band displays for majority systems three sharp features within first eV below Fermi energy, position which is fixed. localized yield broad maximum 1.6-eV binding energy.

参考文章(18)
J. R. Naegele, L. Manes, J. C. Spirlet, W. Müller, Localization of 5f Electrons in Americium: A Photoemission Study Physical Review Letters. ,vol. 52, pp. 1834- 1837 ,(1984) , 10.1103/PHYSREVLETT.52.1834
J.L. Smith, Z. Fisk, S.S. Hecker, Actinides: From heavy fermions to plutonium metallurgy Physica B-condensed Matter. ,vol. 130, pp. 151- 158 ,(1985) , 10.1016/0378-4363(85)90209-8
S. Méot-Reymond, J.M. Fournier, Localization of 5f electrons in δ-plutonium: Evidence for the Kondo effect Journal of Alloys and Compounds. ,vol. 232, pp. 119- 125 ,(1996) , 10.1016/0925-8388(95)01937-5
Olle Eriksson, J.D Becker, A.V Balatsky, J.M Wills, Novel electronic configuration in ∂−Pu Journal of Alloys and Compounds. ,vol. 287, pp. 1- 5 ,(1999) , 10.1016/S0925-8388(99)00063-8
L. Petit, A. Svane, W.M. Temmerman, Z. Szotek, Valencies in actinides Solid State Communications. ,vol. 116, pp. 379- 383 ,(2000) , 10.1016/S0038-1098(00)00343-4
S. Y. Savrasov, G. Kotliar, Ground state theory of delta-Pu Physical Review Letters. ,vol. 84, pp. 3670- 3673 ,(2000) , 10.1103/PHYSREVLETT.84.3670
S. Y. Savrasov, G. Kotliar, E. Abrahams, Correlated electrons in δ-plutonium within a dynamical mean-field picture Nature. ,vol. 410, pp. 793- 795 ,(2001) , 10.1038/35071035
A. J. Arko, J. J. Joyce, L. Morales, J. Wills, J. Lashley, F. Wastin, J. Rebizant, Electronic structure of α- and δ-Pu from photoelectron spectroscopy Physical Review B. ,vol. 62, pp. 1773- 1779 ,(2000) , 10.1103/PHYSREVB.62.1773
T Gouder, L Havela, F Wastin, J Rebizant, Evidence for the 5f localisation in thin Pu layers EPL. ,vol. 55, pp. 705- 711 ,(2001) , 10.1209/EPL/I2001-00471-9