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Critical behavior of the 3D-Ising ferromagnets Cd[CrxTiy]Se4
被引:2
|作者:
Rduch, P.
[1
]
Duda, H.
[1
]
Guzik, A.
[1
]
Malicka, E.
[2
]
Gron, T.
[1
]
Mazur, S.
[3
]
Gagor, A.
[4
]
Sitko, R.
[2
]
机构:
[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
[2] Silesian Univ, Inst Chem, PL-40006 Katowice, Poland
[3] Int Lab High Magnet Fields & Low Temp, PL-53529 Wroclaw, Poland
[4] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
关键词:
Chalcogenides;
Crystal growth;
Critical phenomena;
MAGNETIC-PROPERTIES;
SPINELS;
TEMPERATURE;
CDCR2SE4;
NICKEL;
D O I:
10.1016/j.jpcs.2013.04.026
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The critical behavior of the single-crystalline Cd[CrxTiy]Se-4 spinels (where y = 0.07, 0.42 and 0.59) investigated around the paramagnetic-ferromagnetic phase transition revealed the values of the critical exponents close to those predicted by the calculations for a three-dimensional (3D) anisotropic short-range Ising ferromagnet. The dc magnetic susceptibility and magnetization measurements showed the Curie temperature of 130 K and the saturation magnetization above 5.19 mu(B)/f.u. slightly depend on the Ti content. An increase of the positive value of the temperature independent magnetic susceptibility as the Ti-content increases suggests a significant Van Vleck contribution. (c) 2013 Elsevier Ltd. All rights reserved.
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页码:1419 / 1425
页数:7
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