Electrical and magnetic properties of CdRE2W2O10 tungstates (RE=Y, Nd, Sm, Gd-Er)

被引：20
|
作者：
Kukula, Z. [1 ]
Tomaszewicz, E. [2 ]
Mazur, S. [3 ]
Gron, T. [1 ]
Pawlus, S. [1 ]
Duda, H. [1 ]
Mydlarz, T. [4 ]
机构：
[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
[2] W Pomeranian Univ Technol, Dept Inorgan & Analyt Chem, PL-71065 Szczecin, Poland
[3] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[4] Int Lab High Magnet Fields & Low Temp, PL-53529 Wroclaw, Poland
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2013年 / 74卷 / 01期
关键词：
Oxides; Chemical synthesis; Electrical properties; Magnetic properties; SUPERPARAMAGNETIC-LIKE BEHAVIOR; SCINTILLATION CHARACTERISTICS; LUMINESCENCE PROPERTIES; CDWO4; EU; DY; FILMS; HO;
D O I：
10.1016/j.jpcs.2012.08.004
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Electrical resistivity, thermoelectric power, broadband dielectric spectroscopy, magnetic susceptibility, and magnetization provide experimental evidence that the CdRE2W2O10 tungstates (RE=Y, Nd, Sm, Gd-Er) are magnetically disordered insulators with low relative dielectric permittivity (epsilon(r) similar to 15). These results are characteristic for paramagnetic insulators having the screened electrons on the filled shells. Some of them behave like superparamagnets with the blocking temperature of 30 K. depending on strength of the spin-orbit coupling. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：86 / 93
页数：8
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