A crystal field investigation of the properties of RCuAs2 (R = Pr, Nd, Sm, Tb, Dy, Ho, Er and Yb)

被引：7

作者：

Chatterji, A. ^{[1
]}

Chatterjee, Reba ^{[2
]}

机构：

[1] Barrackpore Rastraguru Surendranath Coll, Kolkata 700120, India

[2] Madanpur KA Vidyalaya Girls, Nadia, W Bengal, India

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 18期

关键词：

crystal field; magnetic properties; heat capacity; stark energies;

D O I：

10.1016/j.physb.2008.03.007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A crystal field (CF) investigation of the magnetic properties and heat capacities of RCuAS(2) (R = Pr, Nd, Sm, Tb, Dy, Ho, Er and Yb) has been carried out using the observed average magnetic susceptibilities (1.8-300K) of the title compounds. The CF parameters proposed for the systems show a systematic variation throughout the rare-earth series. Other physical properties dependent on the CF are also computed and compared with available experimental data. The experimental heat capacity data reported for a limited range of temperature agree well with computed heat capacity for all the compounds (except SmCuAs2 and YbCuAs2). CF J mixing was found to be appreciable for all the samples except YbCuAs2. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3067 / 3076

页数：10

共 20 条

[1] Ionic interactions in lanthanide halides [J].

Akdeniz, Z ;

Çiçek, Z ;

Tosi, MP .

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 2000, 55 (11-12) :861-866

[2] Magnetic measurements on the single crystals of Nd(BrO3)3•9H2O and a crystal field investigation of its properties [J].

Chatterji, A ;

Chattopadhyay, KN ;

Neogy, D ;

Paul, P ;

Chatterjee, R ;

Chatterjee, S .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 271 (01) :1-8

[3] An appraisal of the crystal field in rare earth intermetallics:: TmCu2Si2 [J].

Chatterji, A ;

Chatterjee, S ;

Chatterjee, R .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2003, 238 (01) :180-190

[4]

DIEKE GH, 1968, SPECTRA ENERGY LEVEL, P83

[5]

GARCIA D, 1995, HDB PHYS CHEM RARE E, V21, P45425

[6] CRYSTAL-FIELD EFFECTS IN PRCU2SI2 - AN EVALUATION OF EVIDENCE FOR HEAVY-FERMION BEHAVIOR [J].

GOREMYCHKIN, EA ;

OSBORN, R ;

MUZYCHKA, AY .

PHYSICAL REVIEW B, 1994, 50 (18) :13863-13866

[7] On LnCu1+δAs2 compounds single crystal structure determination of NdCu1.06As2, SmCu1.05As2, HoCuAs2, and YbCuAs2 [J].

Jemetio, JP ;

Doert, T ;

Rademacher, O ;

Böttcher, P .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 338 (1-2) :93-98

[8] MAGNETIC-PROPERTIES OF YTTERBIUM INTERMETALLIC COMPOUNDS WITH INTERMEDIATE VALENCY [J].

KLAASSE, JCP ;

MATTENS, WCM ;

DEBOER, FR ;

DECHATEL, PF .

PHYSICA B & C, 1977, 86 (JAN-M) :234-236

[9] Spectroscopy of potential laser material Yb3+(4f13) in NaBi(WO4)2 [J].

Merkle, LD ;

Dubinskii, M ;

Zandi, B ;

Gruber, JB ;

Sardar, DK ;

Kokanyan, EP ;

Babajanyan, VG ;

Demirkhanyan, GG ;

Kostanyan, RB .

OPTICAL MATERIALS, 2004, 27 (02) :343-349

[10] THE EFFECTS OF CRYSTAL-FIELD ON ND-3+ IN THE LASER HOST YVO4 [J].

NEOGY, D ;

MUKHERJEE, AK ;

CHATTERJI, A .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1985, 46 (02) :175-179

← 1 2 →