THEORY OF MAGNETIZATION AND EXCHANGE-ENHANCED SUSCEPTIBILITY OF PD-NI ALLOYS

被引:1
|
作者
KIOUSSIS, N [1 ]
GARLAND, JW [1 ]
机构
[1] UNIV ILLINOIS,DEPT PHYS,CHICAGO,IL 60680
关键词
D O I
10.1063/1.344876
中图分类号
O59 [应用物理学];
学科分类号
摘要
A recently developed new formalism is used to calculate the temperature-dependent, exchange-enhanced Pauli susceptibility, χP(c,T), of paramagnetic and weakly ferromagnetic Pd-Ni alloys. For the first time both the strong nonlinear effects of local chemical environment and of moment formation are included in the calculation of χP(c,T). Also, the effects of quantum and thermal spin fluctuations are included for the first time in alloy calculations away from the dilute limit. This is done through the use of a semiphenomenological theory consistent with scaling laws and with the results of renormalization-group theory for the single-impurity problem. In order to compare theory with experiment, we analyzed the theoretical results for χP(c,T) in exactly the same way as the experimental results. Two different calculational methods were used, one corresponding to an expansion in powers of the Ni concentration and the other involving the exact embedding of 55-site clusters in a self-consistently determined effective medium. Both methods yielded results superior to those of all previous theories and in good agreement with experiment.
引用
收藏
页码:4579 / 4581
页数:3
相关论文
共 50 条
  • [21] SPECIFIC HEAT AND ELECTRICAL RESISTIVITY OF EXCHANGE-ENHANCED DILUTE PT-NI ALLOYS
    MACKLIET, CA
    SCHINDLER, AI
    GILLESPIE, DJ
    PHYSICAL REVIEW B-SOLID STATE, 1970, 1 (08): : 3283 - +
  • [22] DEBIJE TEMPERATURE OF PURE PD AND DILUTE PD-NI ALLOYS
    VANDAM, JE
    PIKART, MF
    PHYSICS LETTERS A, 1973, A 45 (02) : 147 - 148
  • [23] SPECIFIC HEAT AND ELECTRICAL RESISTIVITY OF EXCHANGE-ENHANCED DILUTE PT-NI ALLOYS
    MACKLIET, CA
    SCHINDLE.AI
    GILLESPI.DJ
    REPORT OF NRL PROGRESS, 1970, : 1 - &
  • [24] Electrocrystallization of Pd-Ni Alloys on Glassy Carbon Electrode
    Yue Jun-Pei
    Yang Fang-Zu
    Tian Zhong-Qun
    Zhou Shao-Min
    ACTA PHYSICO-CHIMICA SINICA, 2011, 27 (06) : 1446 - 1450
  • [25] GIANT MOMENTS AND PRESSURE EFFECTS IN PD-NI ALLOYS
    BEILLE, J
    CHOUTEAU, G
    JOURNAL OF PHYSICS F-METAL PHYSICS, 1975, 5 (04): : 721 - 731
  • [26] S-ELECTRON-PARAMAGNON SCATTERING IN DILUTE PD-NI ALLOYS - THEORY AND EXPERIMENT
    SCHINDLER, AI
    RICE, MJ
    PHYSICAL REVIEW, 1967, 164 (02): : 759 - +
  • [27] THERMOPOWER OF PD-NI ALLOYS NEAR CRITICAL CONCENTRATION
    FOILES, CL
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1977, 22 (03): : 333 - 333
  • [28] CRITICAL CONCENTRATION FOR ONSET OF FERROMAGNETISM IN PD-NI ALLOYS
    MURANI, AP
    TARI, A
    COLES, BR
    JOURNAL OF PHYSICS F-METAL PHYSICS, 1974, 4 (10): : 1769 - 1781
  • [29] LOW-TEMPERATURE ELECTRICAL RESISTIVITY OF PD AND PD-NI ALLOYS
    SCHINDLE.AI
    COLES, BR
    JOURNAL OF APPLIED PHYSICS, 1968, 39 (2P2) : 956 - &
  • [30] EFFECT OF PRESSURE ON EXCHANGE-ENHANCED ZONE PARAMAGNETISM OF PALLADIUM ALLOYS
    PANFILOV, AS
    PUSHKAR, YY
    SVECHKAREV, IV
    ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1989, 95 (02): : 751 - 759