Contact-free reactions between micropipes in bulk SiC growth. / Gutkin, Mikhail Yu; Sheinerman, Alexander G.; Kohn, Victor G.; Argunova, Tatiana S.; Smirnov, Mikhail A.; Je, Jung Ho.
In: Physica Status Solidi (A) Applications and Materials Science, Vol. 209, No. 8, 08.2012, p. 1432-1437.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Contact-free reactions between micropipes in bulk SiC growth
AU - Gutkin, Mikhail Yu
AU - Sheinerman, Alexander G.
AU - Kohn, Victor G.
AU - Argunova, Tatiana S.
AU - Smirnov, Mikhail A.
AU - Je, Jung Ho
PY - 2012/8
Y1 - 2012/8
N2 - It has been generally accepted that any reaction between micropipes in silicon carbide (SiC) crystals requires a direct contact of the micropipes. We propose a new model of contact-free reactions that are realized through the emission and absorption of full-core dislocations by micropipes. This model can explain the correlated reduction in micropipe radii in the samples with low micropipe densities which has been observed in synchrotron radiation (SR) phase contrast images supported by computer simulations. We provide a theoretical description of a contact-free reaction between two parallel micropipes.
AB - It has been generally accepted that any reaction between micropipes in silicon carbide (SiC) crystals requires a direct contact of the micropipes. We propose a new model of contact-free reactions that are realized through the emission and absorption of full-core dislocations by micropipes. This model can explain the correlated reduction in micropipe radii in the samples with low micropipe densities which has been observed in synchrotron radiation (SR) phase contrast images supported by computer simulations. We provide a theoretical description of a contact-free reaction between two parallel micropipes.
KW - crystal structure
KW - defects
KW - single crystal growth
KW - synchrotron X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84865020562&partnerID=8YFLogxK
U2 - 10.1002/pssa.201127682
DO - 10.1002/pssa.201127682
M3 - Article
AN - SCOPUS:84865020562
VL - 209
SP - 1432
EP - 1437
JO - Physica Status Solidi (A) Applications and Materials Science
JF - Physica Status Solidi (A) Applications and Materials Science
SN - 1862-6300
IS - 8
ER -
ID: 97786858