Incomplete charge-density-wave gap opening in orthorhombic Mo4O11

被引：8
作者：
Terrasi, A
Marsi, M
Berger, H
Gauthier, F
Forro, L
Margaritondo, G
Kelley, RJ
Onellion, M
机构：
[1] ECOLE POLYTECH FED LAUSANNE, IGA, CH-1015 LAUSANNE, SWITZERLAND
[2] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1996年 / 100卷 / 04期
关键词：
D O I：
10.1007/s002570050152
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using angle-resolved photoemission, we report the first observation of an incomplete charge-density-wave (CDW) gap opening for the quasi-two-dimensional material Mo4O11. Our data indicate that the gap opening occurs over a range of 0.5 (A)ngstrom(-1) in the Brillouin zone. The maximum gap opening (Delta(max)) we observe is 60 +/- 10 meV, which leads to a ratio of 2 Delta(max)/kT(CDW) = 14 +/- 6 (T-CDW = transition temperature), well above the weak coupling value of 3.5. Our data suggest that both 1-dimensional and 2-dimensional electronic states may be involved in the gap opening.
引用
收藏
页码：493 / 496
页数：4
相关论文
共 17 条
  • [1] BAND ELECTRONIC-STRUCTURE STUDY OF THE ELECTRONIC INSTABILITY IN THE MAGNELI PHASE MO4O11
    CANADELL, E
    WHANGBO, MH
    SCHLENKER, C
    ESCRIBEFILIPPINI, C
    [J]. INORGANIC CHEMISTRY, 1989, 28 (08) : 1466 - 1472
  • [2] FOURCAUDOT G, 1983, J PHYS C SOLID STATE, V16, P61227
  • [3] CRYSTALLINE-STRUCTURE OF THE BIDIMENSIONAL METALLIC CONDUCTOR MO4O11-GAMMA
    GHEDIRA, M
    VINCENT, H
    MAREZIO, M
    MARCUS, J
    FURCAUDOT, G
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1985, 56 (01) : 66 - 73
  • [4] CHARGE-DENSITY WAVE INSTABILITY IN THE QUASI TWO-DIMENSIONAL METAL GAMMA-MO4O11
    GUYOT, H
    SCHLENKER, C
    FOURCAUDOT, G
    KONATE, K
    [J]. SOLID STATE COMMUNICATIONS, 1985, 54 (11) : 909 - 912
  • [5] INFRARED REFLECTIVITY STUDIES ON QUASI-2 DIMENSIONAL MOLYBDENUM OXIDES MO4O11
    GUYOT, H
    ALKHOURY, E
    MARCUS, J
    SCHLENKER, C
    BANVILLE, M
    JANDL, S
    [J]. SOLID STATE COMMUNICATIONS, 1991, 79 (04) : 307 - 311
  • [6] TRANSPORT-PROPERTIES OF QUASI-2-DIMENSIONAL MO4O11 CRYSTALS
    INOUE, M
    OHARA, S
    HORISAKA, S
    KOYANO, M
    NEGISHI, H
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1988, 148 (02): : 659 - 671
  • [7] KIHLBORG L, 1963, ARK KEMI, V21, P365
  • [8] AC CONDUCTION OF CHARGE-DENSITY WAVES IN ETA-MO4O11 WITH QUASI-2-DIMENSIONAL STRUCTURE
    KOYANO, M
    INOUE, M
    HUGHES, HP
    YOFFE, AD
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1992, 171 (01): : 167 - 175
  • [9] EVIDENCE FOR A SURFACE-STATE EXCITON ON GAAS(110)
    LAPEYRE, GJ
    ANDERSON, J
    [J]. PHYSICAL REVIEW LETTERS, 1975, 35 (02) : 117 - 120
  • [10] PHOTOEMISSION STUDIES OF CORE EXCITON DECAY IN KI
    LAPEYRE, GJ
    BAER, AD
    HERMANSON, J
    ANDERSON, J
    KNAPP, JA
    GOBBY, PL
    [J]. SOLID STATE COMMUNICATIONS, 1974, 15 (11) : 1601 - 1605
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