Fabrication, magnetic properties, and electronic structures of nanoscale zinc-blende MnAs dots (invited)

被引：126

作者：

Ono, K ^{[1
]}

Okabayashi, J

Mizuguchi, M

Oshima, M

Fujimori, A

Akinaga, H

机构：

[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[3] Univ Tokyo, Dept Complex Sci & Engn, Bunkyo Ku, Tokyo 1130033, Japan

[4] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058562, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.1456396

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ferromagnetic nanoscale zinc-blende MnAs dots were successfully fabricated on a sulfur-passivated GaAs (001) surface by molecular-beam epitaxy. Transmission electron microscopy and selected area electron diffraction showed that the crystalline structure was not the same as that of bulk MnAs with NiAs-type hexagonal crystalline structure, but of zinc-blende type. In in situ photoemission spectroscopy of the zinc-blende MnAs dots, the Fermi edge was not clearly observed and the Mn 3d partial density of states was similar to that of the diluted ferromagnetic semiconductor Ga1-xMnxAs, which also supports the fabrication of zinc-blende MnAs in the nanoscale. (C) 2002 American Institute of Physics.

引用

页码：8088 / 8092

页数：5

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