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 D 1 in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D 1 ∼ 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.
| Original language | English |
|---|---|
| Article number | 193102 |
| Journal | Applied Physics Letters |
| Volume | 101 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - Nov 5 2012 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
Effects of laser irradiation on the self-assembly of MnAs nanoparticles in a GaAs matrix. / Nam Hai, Pham; Nomura, Wataru; Yatsui, Takashi; Ohtsu, Motoichi; Tanaka, Masaaki.
In: Applied Physics Letters, Vol. 101, No. 19, 193102, 05.11.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of laser irradiation on the self-assembly of MnAs nanoparticles in a GaAs matrix
AU - Nam Hai, Pham
AU - Nomura, Wataru
AU - Yatsui, Takashi
AU - Ohtsu, Motoichi
AU - Tanaka, Masaaki
PY - 2012/11/5
Y1 - 2012/11/5
N2 - 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 D 1 in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D 1 ∼ 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.
AB - 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 D 1 in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D 1 ∼ 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.
UR - http://www.scopus.com/inward/record.url?scp=84869032716&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869032716&partnerID=8YFLogxK
U2 - 10.1063/1.4765355
DO - 10.1063/1.4765355
M3 - Article
VL - 101
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 19
M1 - 193102
ER -