Magnetic Compton profiles of Fcc-Ni, Fcc-Fe50Ni50 and Hcp-Co

被引：67

作者：

Kakutani, Y ^{[1
]}

Kubo, Y

Koizumi, A

Sakai, N

Ahuja, BL

Sharma, BK

机构：

[1] Himeji Inst Technol, Grad Sch, Himeji, Hyogo 6781297, Japan

[2] Himeji Inst Technol, Fac Sci, Himeji, Hyogo 6781297, Japan

[3] Nihon Univ, Coll Humanities & Sci, Dept Phys, Tokyo 1568550, Japan

[4] ML Sukhadia Univ, Dept Phys, Udaipur 313001, India

[5] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 03期

关键词：

magnetic Compton profile; momentum density; Fe50Ni50; Co; Ni;

D O I：

10.1143/JPSJ.72.599

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental and theoretical directional magnetic Compton profiles (MCP's) of hcp-Co. fcc-Fe50Ni50 and fcc-Ni are compared with each other to elucidate the difference of the electronic structures of magnetic electrons between fcc-Fe50Ni50 (almost equivalent to fcc-Co) and hcp-Co, and between fcc-Fe50Ni50 and fcc-Ni. Small difference is found experimentally in the former case along the corresponding crystalline axes in a region p(z) < 2 au. The difference is isotropic in shape between these crystals, which can be ascribed to the difference of the spin polarization of mainly s-like electron. In the later case, the experimental main difference is theoretically explained with the d-like 4-th and the d-like 5-th band MCP's. Anisotropies of the MCP in Co are experimentally confirmed for the first time. Limitation of the theoretical calculation based on the single particle approximation is suggested.

引用

页码：599 / 606

页数：8