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The influence of thermal treatment on magnetic properties of Si/Mn crystals grown by the Czochralski and by floating zone methods and implanted with Mn+ ions was studied by the SQUID magnetometry and electron spin resonance. Depending on thermal and hydrostatic pressure annealing conditions, three groups of Si/Mn samples were found: samples with only ferromagnetic phase, samples with ferromagnetic and paramagnetic contributions, and diamagnetic samples. The Curie temperature of ferromagnetic phase exceeds room temperature. The ESR and SQUID measurements suggest that Si/Mn implanted layer is magnetically inhomogeneous.
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Tom
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751--757
Opis fizyczny
Bibliogr. 11 poz.
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autor
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autor
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, osinn@ifpan.edu.pl
Bibliografia
- [1] DIETL T., OHNO H., MATSUKURA F., CIBERT J., FERRAND D., Science, 287 (2000), 1019.
- [2] DIETL T., Semicond. Sci. Technol., 17 (2002), 377.
- [3] NAKAYAMA H., OHTA H., KULATOV E., Thin Solid Films 395 (2001), 230.
- [4] BOLDUC M., AWO-AFFOUDA C., STOLLENWERK A., HUANG M.B., RAMOS, F.G. AGNELLO G., LABELLA V.P., Phys. Rev. B, 71 (2005), 033302.
- [5] MISIUK A., BAK-MISIUK J., SURMA B., OSINNIY W., SZOT M., STORY T., JAGIELSKI J., J. Alloys Comp., 423 (2006), 201.
- [6] MISIUK A., Mater. Phys. Mech., 1 (2000), 119.
- [7] WARREN W.L., POINTDEXTER E.H., OFFENBERG M., MULLER-WARMUTH W., J. Electrochem. Soc., 139 (1992), 872.
- [8] TOMOZEIU N., VAN FAASEN E.E., ARNOLDBIK W.M., VREDENBERG A.M., HABRAKEN F.H.P.M., Thin Solid Films, 420–421 (2002), 382.
- [9] DUNN K.A., THIEL B.L., RAMOS F.G., HUANG M.B., AWO-AFFOUDA C., BOLDUC M., LABELLA V., Microsc. Microanal., 11 (2005) 1720.
- [10] GOTTLIEB U., SULPICE A., LAMBERT-ANDRON B., LABORDE O., J. Alloys Comp., 361 (2003), 13.
- [11] DUBROCA T., HACK J., HUMMEL R.E., ANGERHOFER A., Appl. Phys. Lett., 88 (2006), 182504.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW8-0006-0048