NEW MAGNETIC BEHAVIOR OF LaCoO3 SINGLE CRYSTAL AT LOW TEMPERATURE

被引：1

作者：

Song, Geng-Xin ^{[1
,2
]}

Li, Liang ^{[1
]}

Xu, Da-Peng ^{[1
]}

机构：

[1] Jilin Univ, Coll Phys, Changchun 130023, Peoples R China

[2] NE Dianli Univ, Jilin 132012, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 2010年 / 24卷 / 29期

关键词：

LaCoO3; single crystal; structure; hysteresis loop; magnetic susceptibility; STATE;

D O I：

10.1142/S0217984910025139

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The LaCoO3 single crystal, 4 mm in diameter and 30 mm in length, has been grown by optical floating zone method. The magnetic measurements show that the coercivity and the remanence are 5 Oe and 1.5 x 10(-3) emu/g at 5 K, respectively. The ZFC and FC magnetic susceptibility curves overlap and the 1/chi(T) curve shows a linear variation over the interval 5 K < T < 35 K in 1000 Oe. As the temperature increases from 35 K to 90 K, the ZFC curve in 1000 Oe firstly reduces nonlinearly, and then appears as a wave crest. The chi under ZFC is higher than that under FC in the temperature range of 55 similar to 90 K. In 50000 Oe, a slope change of 1/chi(T) at about 12 K is observed.

引用

页码：2855 / 2860

页数：6

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