Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Doping effect on the properties of III-V ferromagnetic semiconductor GaMnAs epilayers and their superlattices
Department of Physics, Korea University.
Department of Physics, Korea University.
2005 (English)In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 47, no 3, 444-447 p.Article in journal (Refereed) Published
Abstract [en]

We present a systematic study on the properties of the ferromagnetic (FM) III-V-based semiconductor GaMnAs, including extrinsically doped GaMnAs: Be and its heterostructures in the form of superlattices. In an attempt to further improve the Curie temperature T c of GaMnAs, we have undertaken a systematic program of extrinsic p-doping of this material. In GaMnAs with low x (x = 0.03), T c is, indeed, seen to increase monotonically with increasing Be doping. We also studied the effect of p-doping of non-magnetic spacer layers on the magnetic properties of GaMnAs/GaAs superlattices (SLs). While Be-doped SLs exhibited relatively robust remanent magnetization and a larger coercivity over a broad temperature range, undoped SLs showed a fast decrease in the remanent magnetization with temperature, and a rather small coercivity. We propose that the observed hardness of the magnetization in SLs with Be-doped GaAs layers is related to the interlayer coupling introduced by the doping of the non-magnetic layers.

Place, publisher, year, edition, pages
2005. Vol. 47, no 3, 444-447 p.
Keyword [en]
Doping, GaMnAs, Superlattice
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-105600ISI: 000231915200009OAI: oai:DiVA.org:kth-105600DiVA: diva2:573368
Note

References: Wolf, S.A., Awschalom, D.D., Buhrman, R.A., Daughton, J.M., Von Molar, S., Roukes, M.L., Chtchelkamova, A.Y., Treger, D.M., (2001) Science, 294, p. 1488; Furdyna, J.K., (1988) J. Appl. Phys., 64, pp. R29; Lee, S., Yang, G., Dobrowolska, M., Furdyna, J.K., (2001) J. Korean Phys. Soc., 39, p. 447; Ohno, Y., Young, D.K., Beschoten, B., Matsukura, F., Ohno, H., Awschalom, D.D., (1999) Nature, 402, p. 790; Fiederling, R., Keim, M., Reuscher, G., Ossau, W., Schmidt, G., Waag, A., Molenkamp, L.W., (1999) Nature, 402, p. 787; Hanbicki, A.T., Jonker, B.T., Itskos, G., Kioseoglou, G., Petrou, A., (2002) Appl. Phys. Lett., 80, p. 1240; Furdyna, J.K., Lee, S., Wojtowicz, T., Liu, X., Lim, W.L., Kuryliszyn, I., Sasaki, Y., Walukiewicz, W., (2003) J. Korean Phys. Soc., 42, pp. S579; Ohno, H., Chiba, D., Matsukura, F., Omiya, T., Abe, E., Dietl, T., Ohno, Y., Ohtani, K., (2000) Nature, 408, p. 944; Koshihara, S., Oiwa, A., Hirasawa, M., Katsumoto, S., Iye, Y., Urano, C., Takagi, H., Munekata, H., (1997) Phys. Rev. Lett., 78, p. 4617; Yuldashev, Sh.U., Im, H.S., Kang, T.W., Lee, S.H., Sasaki, Y., Liu, X., Furdyna, J.K., Woo, Y.D., (2004) J. Korean Phys. Soc., 45, p. 572; Yuldasheva, Sh.U., Imb, H., Sh Yalisheva, V., Park, C.S., Kang, T.W., Lee, S., Sasaki, Y., Furdyna, J.K., (2003) Appl. Phys. Lett., 82, p. 1206; Grunberg, P., Schreiber, R., Pang, Y., Brodsky, M.B., Sowers, H., (1986) Phys. Rev. Lett., 57, p. 2442; Mathieu, R., Svedlindh, P., Sadowski, J., Swiatek, K., Karlsteen, M., Kanski, J., Ilver, L., (2002) Appl. Phys. Lett., 81, p. 3013; Akiba, N., Matsukura, F., Shen, A., Ohno, Y., Ohno, H., Oiwa, A., Katsumoto, S., Iye, Y., (1998) Appl. Phys. Lett., 73, p. 2122; Ohno, H., (1998) Science, 281, p. 951; Ohno, H., (1999) J. Magn. Magn. Mater., 200, p. 110; Dietl, T., Ohno, H., Matsukura, F., Cibert, J., Ferrand, D., (2000) Science, 287, p. 1019; Van Bockstal, L., Van Esch, A., Bogaerts, R., Herlach, F., Van Steenbergen, A., De Boeck, J., Borghs, G., (1998) Physica B, 246-247, p. 258; Yu, K.M., Walukiewicz, W., Chan, L.Y., Leon, R., Haller, E.E., Jaklevic, J.M., Hanson, C.M., (1993) J. Appl. Phys., 74, p. 86; Specht, P., Lutz, R.C., Zhao, R., Weber, E.R., Liu, W.K., Bacher, K., Towner, F.J., Luysberg, M., (1999) J. Vac. Sci. Tech. B, 17, p. 1200; Platt, C.L., McCartney, M.R., Parker, F.T., Berkowitz, A.E., (2000) Phys. Rev. B, 61, p. 9633; Yanagi, S., Munekata, H., Kitamoto, Y., Oiwa, A., Slupinski, T., (2002) J. Appl. Phys., 91, p. 7902

QC 20130513

Available from: 2012-11-30 Created: 2012-11-22 Last updated: 2017-12-07Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Chung, S. J.
In the same journal
Journal of the Korean Physical Society
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 62 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf