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Laser‐induced recystallization and defects in ion‐implanted hexagonal SiC

 

作者: V. V. Makarov,   T. Tuomi,   K. Naukkarinen,   M. Luomaja¨rvi,   M. Riihonen,  

 

期刊: Applied Physics Letters  (AIP Available online 1979)
卷期: Volume 35, issue 12  

页码: 922-924

 

ISSN:0003-6951

 

年代: 1979

 

DOI:10.1063/1.91006

 

出版商: AIP

 

数据来源: AIP

 

摘要:

SiC(6H) crystals amorphized with14N+‐ion implantation were annealed with CO2laser pulses at intensities of 20–100 MW/cm2. Laser produced crystallization due to residual ray absorption was studied by means of optical spectroscopy,4He+‐ion backscattering spectrometry and channeling as well as Cu K&agr;1and synchrotron x‐ray diffraction topography. At low laser intensities topographs revealed linear and planar defects, which contributed to increased dechanneling independent of analyzing beam energy. Minimum of lattice disorder, which was in some regions of the laser impact area smaller than that obtained in thermal annealing, was attained at the peak laser intensities of about 50 MW/cm2.

 

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