COMPETITION BETWEEN KONDO EFFECT AND MAGNETIC-ORDERING IN CEPD2GE2

被引：9

作者：

DAS, I

SAMPATHKUMARAN, EV

机构：

[1] Tata Institute of Fundamental Research, Bombay, 400005, Homi Bhabha Road

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 81卷 / 11期

关键词：

D O I：

10.1016/0038-1098(92)90866-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The results of electrical resistivity (rho) measurements on the pseudoternary solid solutions, Ce1-wYwPd2Ge2 and Ce1-vLavPd2Ge2, in the temperature interval 1.4-300K show that the substitution involving Y is less effective in depressing the Neel temperature of Ce sub-lattice than the La substitution in CePd2Ge2 (T(N) congruent-to 5.1K). This observation could be interpreted in terms of the existence of a competition between the two phenomena - magnetism and Kondo effect- in this system. We present evidence to show that the electronic structure changes following iso-valent ionic substitutions should not be ignored in any quantitative understanding of such competing phenomena.

引用

页码：905 / 908

页数：4

共 13 条

[1] ELECTRIC AND MAGNETIC-PROPERTIES OF THE KONDO LATTICE COMPOUND CECU2SI2 [J].

ALIEV, FG ;

BRANDT, NB ;

MOSHCHALKOV, VV ;

CHUDINOV, SM .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1984, 57 (1-2) :61-93

[2] EVIDENCE OF A HEAVY FERMION BEHAVIOR IN CECU3AL2 [J].

BAUER, E ;

PILLMAYR, N ;

GRATZ, E ;

GIGNOUX, D ;

SCHMITT, D .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 67 (02) :L143-L147

[3]

BESNUS MJ, 1991, IN PRESS SEP INT C M

[4] INFLUENCE OF CRYSTALLINE FIELD ON KONDO EFFECT OF ALLOYS AND COMPOUNDS WITH CERIUM IMPURITIES [J].

CORNUT, B ;

COQBLIN, B .

PHYSICAL REVIEW B, 1972, 5 (11) :4541-&

[5] MAGNETISM AND KONDO EFFECT IN CEPD2SI2-XGEX [J].

DAS, I ;

SAMPATHKUMARAN, EV .

PHYSICAL REVIEW B, 1991, 44 (17) :9711-9714

[6]

DONIACH S, 1987, VALENCE INSTABILITY, P413

[7]

GARDE CS, 1990, PHYS REV B, V43, P3204

[8]

GIGNOUX D, 1984, PHYS REV B, V30, P3969

[9] COMPETITION OF KONDO SPIN FLUCTUATIONS AND RKKY INTERACTIONS IN CERH2SI2-XGEX AND CEM2X2 COMPOUNDS - A KONDO NECKLACE PROBLEM [J].

GODART, C ;

GUPTA, LC ;

TOMY, CV ;

THOMPSON, JD ;

VIJAYARAGHAVAN, R .

EUROPHYSICS LETTERS, 1989, 8 (04) :375-381

[10]

GUPTA LC, 1987, THEORETICAL EXPT ASP

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