Magnetic Compton Profiles of Fcc-Ni, Fcc-Fe_<50>Ni_<50> and Hcp-Co

概要

論文の詳細を見る
Experimental and theoretical directional magnetic Compton profiles (MCP's) of hep-Co, fcc-Fe_<50>Ni_<50> and fcc-Ni are compared with each other to elucidate the difference of the electronic structures ofmagnetic electrons between fcc-Fe_<50>Ni_<50> (almost equivalent to fee-Co) and hep-Co, and between fcc-Fe_<50>Ni_<50> and fcc-Ni. Small difference is found cxpcrimcntallv in the former case along the corresponding crystalline axes in a region P_ < 2au. 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.
社団法人日本物理学会の論文
2003-03-15