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

页码：391 / 393

页数：3

共 13 条

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