PHOTOEMISSION-STUDY OF THE METAL-NONMETAL TRANSITION IN NIS

被引:35
作者
FUJIMORI, A [1 ]
NAMATAME, H [1 ]
MATOBA, M [1 ]
ANZAI, S [1 ]
机构
[1] KEIO UNIV,FAC SCI & TECHNOL,YOKOHAMA,KANAGAWA 223,JAPAN
来源
PHYSICAL REVIEW B | 1990年 / 42卷 / 01期
关键词
D O I
10.1103/PhysRevB.42.620
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have observed small changes in the ultraviolet photoemission spectra of NiS across the temperature-induced phase transition between the Pauli-paramagnetic metal and the antiferromagnetic nonmetal. In going from the nonmetallic to the metallic phases, the main band (d8L) within 3 eV below the Fermi level EF is shifted toward EF by 0.05 eV. This observation is consistent with the closing of a S 3p Ni 3d charge-transfer gap and cannot be reconciled with that of a band gap of antiferromagnetic origin. The spectrum loses a small fraction of intensity in the vicinity of EF as the gap is collapsed. The virtually identical line shape of the main band between the two phases is consistent with the persistence of short-range antiferromagnetic correlation in the paramagnetic phase. © 1990 The American Physical Society.
引用
收藏
页码:620 / 623
页数:4
相关论文
共 26 条
  • [11] DENSITY OF STATES OF NIS
    HUFNER, S
    WERTHEIM, GK
    [J]. PHYSICS LETTERS A, 1973, A 44 (02) : 133 - 134
  • [12] THE ELECTRONIC-STRUCTURE AND THE CORRELATION-ENERGY IN NIS
    HUFNER, S
    RIESTERER, T
    HULLIGER, F
    [J]. SOLID STATE COMMUNICATIONS, 1985, 54 (08) : 689 - 693
  • [13] HUTCHINGS MT, 1978, INELASTIC NEUTRON SC, V2, P123
  • [14] ELECTRICAL AND OPTICAL PROPERTIES OF NIS2
    KAUTZ, RL
    DRESSELHAUS, MS
    ADLER, D
    LINZ, A
    [J]. PHYSICAL REVIEW B-SOLID STATE, 1972, 6 (06): : 2078 - +
  • [15] MATOBA M, UNPUB
  • [16] BAND MODEL FOR METAL-SEMICONDUCTOR TRANSITION IN NIS
    MATTHEISS, LF
    [J]. PHYSICAL REVIEW B, 1974, 10 (03) : 995 - 1005
  • [17] ELECTRICAL PROPERTIES OF NI1-XS
    OHTANI, T
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 37 (03) : 701 - 710
  • [18] SAWATZKY GA, 1984, PHYS REV LETT, V53, P2239
  • [19] METAL-TO-SEMICONDUCTOR TRANSITION AT MAGNETIC ORDERING TEMPERATURE OF NIS
    SPARKS, JT
    KOMOTO, T
    [J]. PHYSICS LETTERS A, 1967, A 25 (05) : 398 - &
  • [20] BAND THEORY OF INSULATING TRANSITION-METAL MONOXIDES - BAND-STRUCTURE CALCULATIONS
    TERAKURA, K
    OGUCHI, T
    WILLIAMS, AR
    KUBLER, J
    [J]. PHYSICAL REVIEW B, 1984, 30 (08): : 4734 - 4747