Spontaneous Appearance of Low-dimensional Magnetic Electron System on Semiconductor Nanostructures
Materials Science
2016-06-29 v1
Abstract
We find that spin-polarized ground states emerge in nanofacets which are self-organized on SiC (0001) surfaces. Our large-scale density-functional calculations reveal that the nanofacet formed by bunching of single bilayer steps generates peculiar carbon dangling bond states localized at but extended along step edges. The flat-band characteristics of those C states cause either ferromagnetic or anti-ferromagnetic chains on covalent semiconductors.
Keywords
Cite
@article{arxiv.1504.06934,
title = {Spontaneous Appearance of Low-dimensional Magnetic Electron System on Semiconductor Nanostructures},
author = {Keisuke Sawada and Jun-Ichi Iwata and Atsushi Oshiyama},
journal= {arXiv preprint arXiv:1504.06934},
year = {2016}
}