Publications
ResearcherID : C-5956-2008 (TY, h-index: 23) , AAZ-8749-2021 (RK, h-index: 6)
Google Scholar : TY (h-index: 32), RK (h-index: 7)
2012
Pham Nam Hai, Wataru Nomura, Takashi Yatsui, Motoichi Ohtsu, Masaaki Tanaka
Effects of laser irradiation on the self-assembly of MnAs nanoparticles in a GaAs matrix Journal Article
In: Applied Physics Letters, 101 (19), pp. 193102, 2012.
@article{doi:10.1063/1.4765355,
title = {Effects of laser irradiation on the self-assembly of MnAs nanoparticles in a GaAs matrix},
author = {Pham Nam Hai and Wataru Nomura and Takashi Yatsui and Motoichi Ohtsu and Masaaki Tanaka},
doi = {10.1063/1.4765355},
year = {2012},
date = {2012-10-01},
journal = {Applied Physics Letters},
volume = {101},
number = {19},
pages = {193102},
abstract = {We investigate the effects of laser irradiation on the self-assembly of MnAs nanoparticles during solid-phase decomposition in a GaAs matrix. It is found that laser irradiation suppresses the growth of MnAs nanoparticles from small to large size, and that the median diameter D1 in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D1 ∼ E−1/5. We explain this behavior by the desorption of Mn atoms on the MnAs nanoparticle surface due to resonant optical absorption, in which incident photons excite intersubband electronic transitions between the quantized energy levels in the MnAs nanoparticles.},
keywords = {Nanoparticle, Nanophotonic fabrication, Near-field effect},
pubstate = {published},
tppubtype = {article}
}
We investigate the effects of laser irradiation on the self-assembly of MnAs nanoparticles during solid-phase decomposition in a GaAs matrix. It is found that laser irradiation suppresses the growth of MnAs nanoparticles from small to large size, and that the median diameter D1 in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D1 ∼ E−1/5. We explain this behavior by the desorption of Mn atoms on the MnAs nanoparticle surface due to resonant optical absorption, in which incident photons excite intersubband electronic transitions between the quantized energy levels in the MnAs nanoparticles.