Formation of cooper islands on surface of thermoelectric semiconductors Cu2Se under laser treatment

O. Yu. Semchuk 2N.N. Krupa 3M. Willander 1M. Karlsteen 1V. N. Semioshko 2

1. Chalmers University of Technology, Göteborg 412 96, Sweden
2. Institute of Surface Chemistry NAS of Ukraine, 17 General Naumov, Kyiv 03164, Ukraine
3. Institute of Magnetism, NAS of Ukraine, Kyiv, Ukraine


The photoinduced electron drift should also occur in metals; however, because of the high absorption coefficient of metals and the high concentration of conduction electrons in them, its observation in metals is greatly complicated.
In this paper, variations in the reflection of light from then multilayer metal films are theoretically and experimentally studied upon their irradiation by intense nanosecond laser pulses. The irradiation results in the optical rotation of light reflected from nonmagnetic metal films due to photoinduced drift of electrons with polarized spins.
The results, presented in this paper showed that nonmagnetic films in multilayer magnetic films could be magnetizations with polarized spins.


Presentation: poster at E-MRS Fall Meeting 2005, Symposium D, by O. Yu. Semchuk
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-18 08:45
Revised:   2009-06-07 00:44