STUDIES ON SOME GROUND-STATE PROPERTIES AND SPECIFIC-HEAT OF MIXED-VALENCE SYSTEMS

被引：2
|
作者：
GHOSH, NK
GHOSH, SC
SARKAR, RL
机构：
[1] Department of Physics, University of Kalyani
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1992年 / 171卷 / 01期
关键词：
D O I：
10.1002/pssb.2221710112
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A simple two-site model with spin is considered for which the exact solution is admissible. The phenomenon of valence transition is investigated. Finite temperature specific heat and magnetic intersite spin correlations are also studied. It is shown that strong f-d Coulomb interaction makes the first-order transition possible. It is also shown that the magnetic intersite spin correlations are sensitive to f-d Coulomb interaction and hopping interaction. The results are compared with previous works.
引用
收藏
页码：107 / 112
页数：6
相关论文
共 50 条
  • [21] THE MIXED-VALENCE ENERGY PARAMETERS OF SOME CE AND YB SYSTEMS
    WITTERSHAGEN, B
    WOHLLEBEN, D
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 47-8 (FEB) : 79 - 82
  • [22] ELECTRON-SPIN RESONANCE OF REDUCED 12-MOLYBDOPHOSPHATE ANION AND GROUND-STATE DELOCALIZATION IN MIXED-VALENCE HETEROPOLYANIONS
    LAUNAY, JP
    FOURNIER, M
    SANCHEZ, C
    LIVAGE, J
    POPE, MT
    INORGANIC & NUCLEAR CHEMISTRY LETTERS, 1980, 16 (05): : 257 - 261
  • [23] SPECIFIC-HEAT STUDIES OF THE MIXED-VALENCE TETRATHIAFULVALENE (TTF) SALTS - (TTF)BR0.72, (TTF)CL0.67, AND (TTF)(SCN)0.57
    MADISON, MR
    COLEMAN, LB
    KIMBALL, JC
    WILLIAMS, RM
    PHYSICAL REVIEW B, 1982, 25 (10): : 6146 - 6154
  • [24] SPECTROSCOPIC PROPERTIES OF SOME MIXED-VALENCE TRANSITIONAL METAL CHALCOGENIDES
    ALLEN, GC
    WOOD, MB
    DYKE, JM
    JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1973, 35 (07): : 2311 - 2318
  • [25] ELECTRICAL PROPERTIES OF SOME MIXED-VALENCE COMPLEXES OF PALLADIUM AND PLATINUM
    INTERRAN.LV
    BROWALL, KW
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1973, : 128 - +
  • [26] SPECIFIC-HEAT AND MAGNETIZATION OF SUPERCONDUCTING NIOBIUM IN THE MIXED STATE
    IMFELD, NJ
    BESTGEN, W
    RINDERER, L
    JOURNAL OF LOW TEMPERATURE PHYSICS, 1985, 60 (3-4) : 223 - 238
  • [27] EFFECTS OF THE HALOGEN SUBSTITUENTS ON THE VALENCE STATE OF IRON ATOMS IN SOME MIXED-VALENCE DIHALOBIFERROCENES
    KAI, M
    MOTOYAMA, I
    KATADA, M
    MASUDA, Y
    SANO, H
    CHEMISTRY LETTERS, 1988, (06) : 1037 - 1040
  • [28] SPECIFIC-HEAT BEHAVIOR ACROSS THE HEAVY-FERMION TO MIXED-VALENCE TRANSITION IN CECU2-XNIXSI2 ALLOYS
    KUENTZLER, R
    DOSSMANN, Y
    SAMPATHKUMARAN, EV
    DHAR, SK
    VIJAYARAGHAVAN, R
    PHYSICAL REVIEW B, 1987, 36 (01): : 788 - 790
  • [29] Studies on the synthesis, structure and properties of a mixed-valence molybdogermanate salt
    Niu, JY
    Wang, JP
    Zhou, ZY
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2000, 16 (04) : 647 - 652
  • [30] TRANSPORT-PROPERTIES OF HEAVY FERMIONS AND MIXED-VALENCE SYSTEMS
    PANWAR, S
    SINGH, I
    PHYSICA B, 1995, 205 (3-4): : 253 - 258
12345