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pro vyhledávání: '"Khodaparast, G. A."'
Akademický článek
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Autor:
Nontapot, K., Kini, R. N., Spencer, B., Khodaparast, G. A., Goel, N., Chung, S. J., Mishima, T. D., Santos, M. B.
We report time resolved measurements of spin relaxation in doped and undoped InSb quantum wells using degenerate and two-color magneto-optical Kerr effect techniques. We observed that the photo-excited spin dynamics are strongly influenced by laser e
Externí odkaz:
http://arxiv.org/abs/0807.2660
Autor:
Sun, Y., Kyrychenko, F. V., Sanders, G. D., Stanton, C. J., Khodaparast, G. A., Kono, J., Matsuda, Y. H., Munekata, H.
We present a theoretical and experimental study on electronic and magneto-optical properties of p-type paramagnetic InMnAs dilute magnetic semiconductor alloys and ferromagnetic p-type InMnAs/(Al,Ga)Sb thin films in ultrahigh (> 100 T) external magne
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510323
Autor:
Sanders, G. D., Sun, Y., Stanton, C. J., Khodaparast, G. A., Kono, J., King, D. S., Matsuda, Y. H., Ikeda, S., Miura, N., Oiwa, A., Munekata, H.
Accurate determination of carrier densities in ferromagnetic semiconductors by Hall measurements is hindered by the anomalous Hall effect, and thus alternative methods are being sought. Here, we propose that cyclotron resonance (CR) is an excellent m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307653
Autor:
Khodaparast, G. A., Kono, J., Matsuda, Y. H., Ikeda, S., Miura, N., Slupinski, T., Oiwa, A., Munekata, H., Sun, Y., Kyrychenko, F. V., Sanders, G. D., Stanton, C. J.
We report the observation of hole cyclotron resonance (CR) in InMnAs/(Al,Ga)Sb heterostructures in a wide temperature range covering both the paramagnetic and ferromagnetic phases. We observed two pronounced resonances that exhibit drastic changes in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307087
Through time-resolved two-color magneto-optical Kerr spectroscopy we have demonstrated that photogenerated transient carriers decrease the coercivity of ferromagnetic InMnAs at low temperatures. This transient ``softening'' persists only during the c
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305017
Publikováno v:
J. of Superconductivity: Incorporating Novel Magnetism 16, 373 (2003).
We have performed a two-color time-resolved magneto-optical Kerr effect (MOKE) study of a ferromagnetic InMnAs/GaSb heterostructure. We observed ultrafast photo-induced changes in the MOKE signal induced by a large density of spin-polarized transient
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207563
Autor:
Khodaparast, G. A., Kono, J., Matsuda, Y. H., Ikaida, T., Ikeda, S., Miura, N., Slupinski, T., Oiwa, A., Munekata, H.
We report the first observation of hole cyclotron resonance (CR) in ferromagnetic InMnAs/GaSb heterostructures both in the high-temperature paramagnetic phase and the low-temperature ferromagnetic phase. We clearly resolve two resonances that exhibit
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207485
Akademický článek
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Autor:
Bhowmick, M., Khodaparast, G. A., Mishima, T. D., Santos, M. B., Saha, D., Sanders, G., Stanton, C. J.
Publikováno v:
Journal of Applied Physics; 2016, Vol. 120 Issue 23, p235702-1-235702-7, 7p, 1 Diagram, 2 Charts, 6 Graphs
