Low-Temperature Specific Heat and Magnetocaloric Effect in RCu2Ge2 (R = Dy-Tm) Compounds

被引：0
|
作者：
Gondek, L. [1 ]
Kaczorowski, D. [2 ]
Pikul, A. P. [2 ]
Szytula, A. [3 ]
机构：
[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland
[2] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
[3] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland
来源：
ACTA PHYSICA POLONICA A | 2012年 / 122卷 / 02期
关键词：
NEUTRON-DIFFRACTION; PHASE-TRANSITION; TBCU2GE2; CAPACITY; CRYSTAL;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetocaloric effect in RCu2Ge2 (R = Dy-Tm) was investigated by means of specific heat measurements. The compounds order antiferromagnetically at 6.2 K (DyCu2Ge2), 5.6 K (HoCu2Ge2), 3.0 K (ErCu2Ge2), and 3.9 K (TmCu2Ge2), and some of them exhibit additional magnetic transitions in the ordered state. In an external magnetic field the low-temperature specific heat changes significantly, which can be attributed to metamagnetic-like transitions. In this temperature region, the investigated samples show distinctly different magnetocaloric effect.
引用
收藏
页码：391 / 393
页数：3
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