Magnetic Properties of GaGdN Studied by SX-MCD and XAFS

被引：1

作者：

Takahashi, M. ^{[1
]}

Zhou, Yi-Kai ^{[1
]}

Nakamura, T. ^{[2
]}

Emura, S. ^{[1
]}

Hasegawa, S. ^{[1
]}

Asahi, H. ^{[1
]}

机构：

[1] Osaka Univ, ISIR, Osaka 5670047, Japan

[2] JASRI SPring 8, Sayocho, Hyogo 6795198, Japan

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2010年 / 23卷 / 01期

关键词：

SX-MCD; GaGdN; Spintronics; DMS;

D O I：

10.1007/s10948-009-0577-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The element-selected magnetic circular dichroism (MCD) between Gd core states is observed in the soft X-ray region (1150-1250 eV). The dichroism intensity for the transition from the 3d to 4f orbital of the Gd atomic state is very strong and reaches up to about 30% at 15 K. The temperature dependence of the MCD intensity shows a ferromagnetic phase around 50-80 K in addition to the room temperature ferromagnetic phase. Its X-ray absorption near edge structure is different from those of other Gd compounds. It seems to be related to the strength of the ferromagnetic behavior.

引用

页码：107 / 109

页数：3

共 4 条

[1] Ferromagnetism and colossal magnetic moment in Gd-focused ion-beam-implanted GaN [J].