Anisotropic Magnetocaloric Effect and Magnetic Order in Antiferromagnetic Gd<sub>2</sub>InGe<sub>2</sub>

• 作者: A. L. Lima Sharma A. M. Gomes P. A. Sharma
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 物理学
• 关键词: INTERMETALLIC Compounds Flux Growth MAGNETOCALORIC Effect Anisotropy
• 年，卷（期）: ngtwlgjqkyw_2013,（4）
• 页码范围: 180-183
• 页数: 4页
• 分类号: O48

摘要

We investigated the transport, thermal and magnetic properties of antiferromagnetic (TN = 45 K) Gd2InGe2. Magnetization measurements under applied magnetic field, oriented along different crystallographic directions, were used to extract the anisotropic magnetocaloric effect. We also measured magnetization under pulsed field up to 45 T. From the analysis of the electrical transport and magnetization, conduction band electrons were weakly coupled to Gd f-electron local moments. Differential scanning calorimeter data confirmed a second order phase of the antiferromagnetic to paramagnetic transition. The anisotropic magnetocaloric effect points to a model of magnetic ordering whereby Gd local moments couple ferromagnetically and antiferromagnetically perpendicular and parallel, respectively, to the c-axis.