Effects of band filling on magnetic structures:: The case of RNi2Ge2

被引：17
作者：
Islam, Z
Detlefs, C
Song, C
Goldman, AI
Antropov, V
Harmon, BN
Bud'ko, SL
Wiener, T
Canfield, PC
Wermeille, D
Finkelstein, KD
机构：
[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
[3] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
[4] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.83.2817
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We establish that strong Fermi surface nesting drives the Neel transition in the RNi2Ge2 compounds. Generalized susceptibility, chi(0)(q), calculations found nesting to be responsible for both incommensurate wave vector, (0 0 0.793), in GdNi2Ge2, and the commensurate structure, (0 0 1), in EuNi2Ge2, as revealed by x-ray resonant exchange scattering. A continuous transition from incommensurate to commensurate magnetic structures via band filling is predicted. The surprisingly higher T-N in EuNi2Ge2 than that in GdNi2Ge2 is also explained.
引用
收藏
页码：2817 / 2820
页数：4
相关论文
共 28 条
  • [1] Andersen O. K., 1985, HIGHLIGHTS CONDENSED, P59
  • [2] BRAMMEIER D, COMMUNICATION
  • [3] BUDKO SL, IN PRESS J MAGN MAGN
  • [4] GROWTH OF SINGLE-CRYSTALS FROM METALLIC FLUXES
    CANFIELD, PC
    FISK, Z
    [J]. PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (06): : 1117 - 1123
  • [5] DETLEFS C, 1997, THESIS IOWA STATE U
  • [6] CORRELATION BETWEEN D-BAND OCCUPANCY AND CRYSTAL-STRUCTURE IN RARE-EARTHS
    DUTHIE, JC
    PETTIFOR, DG
    [J]. PHYSICAL REVIEW LETTERS, 1977, 38 (10) : 564 - 567
  • [7] GENERALIZED SUSCEPTIBILITIES AND MAGNETIC ORDERING OF HEAVY RARE EARTHS
    EVENSON, WE
    LIU, SH
    [J]. PHYSICAL REVIEW LETTERS, 1968, 21 (07) : 432 - &
  • [8] EVENSON WE, 1969, PHYS REV, V178, P432
  • [9] POLARIZATION AND RESONANCE PROPERTIES OF MAGNETIC-X-RAY SCATTERING IN HOLMIUM
    GIBBS, D
    HARSHMAN, DR
    ISAACS, ED
    MCWHAN, DB
    MILLS, D
    VETTIER, C
    [J]. PHYSICAL REVIEW LETTERS, 1988, 61 (10) : 1241 - 1244
  • [10] SPIN-WAVE TEMPERATURE-DEPENDENCE OF GADOLINIUM
    GROBSKY, K
    HARMON, BN
    [J]. JOURNAL OF APPLIED PHYSICS, 1978, 49 (03) : 2147 - 2149
123