Detailed Information on Publication Record
2005
Spontaneous lateral modulation in short-period superlattices investigated by grazing-incidence X-ray diffraction
CAHA, Ondřej, Petr MIKULÍK, Jiří NOVÁK, Václav HOLÝ, Simon C. MOSS et. al.Basic information
Original name
Spontaneous lateral modulation in short-period superlattices investigated by grazing-incidence X-ray diffraction
Name in Czech
Spontánní příčná modulace v krátkoperiodických supermřížkách studovaná rtg difrakcí
Authors
CAHA, Ondřej (203 Czech Republic, guarantor), Petr MIKULÍK (203 Czech Republic), Jiří NOVÁK (203 Czech Republic), Václav HOLÝ (203 Czech Republic), Simon C. MOSS (840 United States of America) and Andrew NORMAN (840 United States of America)
Edition
Physical Review B, USA, American Physical Society, 2005, 1098-0121
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10302 Condensed matter physics
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.185
RIV identification code
RIV/00216224:14310/05:00013218
Organization unit
Faculty of Science
UT WoS
000230890200112
Keywords (in Czech)
laterální modulace; supermřížky; rtg difrakce
Keywords in English
lateral modulation; superlattices; x-ray diffraction
Tags
International impact, Reviewed
Změněno: 9/4/2010 15:39, doc. Mgr. Ondřej Caha, Ph.D.
V originále
The process of spontaneous lateral composition modulation in short-period InAs-AlAs superlattices has been investigated by grazing-incidence x-ray diffraction. We have developed a theoretical description of x-ray scattering from laterally modulated structures that makes it possible to determine the lateral composition modulation directly without assuming any structure model. From experimental intensity distributions in reciprocal space we have determined the amplitudes of the modulation and its degree of periodicity and their dependence on the number of superlattice periods. From the data it follows that the modulation process cannot be explained by bunching of monolayer steps and most likely, it is caused by stress-driven morphological instabilities of the growing surface.
In Czech
Studovali jsme proces spontánní příčné modulace v krátkoperiodických supermřížkách InAs-AlAs rtg difrakcí pod malými úhly. Byl vypracován teoretický model. Struktura supermřížek byla zjištěna srovnáním simulací s měřením rtg dat.
Links
| GA202/03/0148, research and development project |
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| MSM0021622410, plan (intention) |
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