Abstract
In the present article we want to consider some features of not thermal influence of laser pulses on multilayer heterogeneous nanofilms to present the results of our experimental researches of change of the roughness of a surface and magnetic characteristics of permalloy films after their irradiation nanosecond laser pulses and the results of measurement of dynamics of magnetic reversal of magnetic tunnel nanostructures with one and two magnetic nanolayers. It is shown that the photon drag effect of electrons can not only generate an electric potential difference between the input and output surfaces in a semiconductor, but may also lead to a drift of the impurities. The results of our research show that in the thin CdS single crystals can be obtained stimulated emission of electromagnetic radiation in the terahertz frequency range.
Highlights
Over fifty years of its existence, lasers have gone from the invention through the rapid development of lasers as a technique for widespread use in research, industry, medicine, metrology, data recording and processing, military engineering and even in art
The last assertion with good reason can be attributed to such areas of science and technology as nanoelectronics and spintronics
The laser beam passes through several layers of ultra-thin films, and non-thermal effects play an important role in its interaction with such materials
Summary
Over fifty years of its existence, lasers have gone from the invention through the rapid development of lasers as a technique for widespread use in research, industry, medicine, metrology, data recording and processing, military engineering and even in art. In the present article we want to consider some features of not thermal influence of laser pulses on multilayered heterogeneous nanofilms to present the results of our experimental researches of change of the roughness of a surface and magnetic characteristics of permalloy films after their irradiation nanosecond laser pulses and the results of measurement of dynamics of magnetic reversal of magnetic tunnel nanostructures with one and two magnetic nanolayers We hope that these results will be useful to researchers and technologists to experts at studying of spin- dependent conductivity in magnetic materials and by working out of technology of new high-speed elements of spintronics. All stated above shows that localized on the needlelike nanoparticle plasmons play important role in processes of interaction of laser radiation with the surface of metal films Such localized plasmons are a source of increase of the coefficient of absorption and cause the amplification of a field of laser radiation falling on the film surface. The physical mechanism of this phenomenon will be discussed below
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: American Journal of Nano Research and Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
