Photoemission Study of Ce2Sb

Ultraviolet photoemission spectra have been measured for Ce 2 Sb, CeBi 0.9 Te 0.1 and CeSe by use of synchrotron radiation to study their electronic structures especially to study the origin of the double peak structures. We have observed the same double peak structure in CeBi 0.9 Te 0.1 as in CeBi. A remarkable triple peak structure is observed in CeSe attributed to the p , f and d bands respectively. Ce 2 Sb is more complicated but it was shown that the band structure is rather similar to CeSb except for a pseudo-gap between the p and d bands and that the f level is at the pseudo-gap causing no double peak structure.

[1]  T. Kasuya,et al.  Heavy Fermion Character in Ce2Sb and Ce2Bi , 1993 .

[2]  Z. Fisk,et al.  Novel Ce magnetism in CeDipnictide and Di‐Ce pnictide structures , 1991 .

[3]  Y. Endoh,et al.  Magnetic and transport properties of Ce2Sb and Ce2Bi , 1987 .

[4]  T. Ishii,et al.  Photoemission study of CeCu6 , 1986 .

[5]  O. Sakai,et al.  Calculation of PES and BIS in Ce-pnictides and Ce-metal based on the detailed hybridization model , 1985 .

[6]  A. Hasegawa Fermi Surface of LaSb and LaBi , 1985 .

[7]  A. Fujimori Photoemission spectra of Ce compounds and their relation to ground-state and dynamical properties , 1985 .

[8]  T. Kasuya,et al.  Low temperature magnetic and transport properties of CeBi1−xTex alloys in high magnetic fields , 1985 .

[9]  F. Hillebrecht 4f-states in ?- and a-like Ce compounds , 1985 .

[10]  I. Lindau,et al.  Atomic subshell photoionization cross sections and asymmetry parameters: 1 ⩽ Z ⩽ 103 , 1985 .

[11]  O. Sakai,et al.  PES and BIS Spectra in Ce-Compounds , 1985 .

[12]  Y. Kuramoto,et al.  Self-consistent perturbation theory for dynamics of valence fluctuations , 1984 .

[13]  O. Sakai,et al.  Effective 4ƒ energy level in virtual excitation and in photoemission processes in Ce-pnictides , 1984 .

[14]  O. Sakai,et al.  Origin of Double Peaks in Photoemission Spectra from Metallic Ce-Compounds , 1984 .

[15]  O. Gunnarsson,et al.  Electron spectroscopies for Ce compounds in the impurity model , 1983 .

[16]  J. H. Weaver,et al.  Surface binding energy shifts, mixed valence and localization of 4f electrons: Ce vs. Sm (invited) , 1981 .

[17]  M. Croft,et al.  Evidence of 4f photoemission satellites in cerium compounds , 1981 .

[18]  L. D. Calvert,et al.  The crystal structure of La2Sb , 1970 .