Magnetic and structural properties of Gd-implanted zinc-blende GaN

F. Y. Lo, A. Melnikov, D. Reuter, A. D. Wieck, V. Ney, T. Kammermeier, A. Ney, J. Schörmann, S. Potthast, D. J. As, K. Lischka

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Abstract

Zinc-blende GaN layers grown by molecular beam epitaxy were uniformly focused-ion-beam implanted with 300 keV Gd3+ ions for doses ranging from 1× 1012 to 1× 1015 cm-2, and their structural and magnetic properties were studied. The implanted samples were not subjected to any annealing treatment. Only Gd incorporation into zinc-blende GaN was observed by x-ray diffraction. Magnetic investigations using superconducting quantum interference device magnetometry reveal a (super)paramagneticlike behavior with an ordering temperature around 60 K for the sample with the highest implantation dose. Our experimental studies indicate that the spontaneous electric polarization in wurtzite GaN is the crucial mechanism for its ferromagneticlike behavior upon Gd doping.

Original languageEnglish
Article number262505
JournalApplied Physics Letters
Volume90
Issue number26
DOIs
Publication statusPublished - 2007 Aug 2

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zinc
magnetic properties
dosage
wurtzite
magnetic measurement
implantation
x ray diffraction
molecular beam epitaxy
ion beams
interference
annealing
polarization
ions
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Lo, F. Y., Melnikov, A., Reuter, D., Wieck, A. D., Ney, V., Kammermeier, T., ... Lischka, K. (2007). Magnetic and structural properties of Gd-implanted zinc-blende GaN. Applied Physics Letters, 90(26), [262505]. https://doi.org/10.1063/1.2753113

Magnetic and structural properties of Gd-implanted zinc-blende GaN. / Lo, F. Y.; Melnikov, A.; Reuter, D.; Wieck, A. D.; Ney, V.; Kammermeier, T.; Ney, A.; Schörmann, J.; Potthast, S.; As, D. J.; Lischka, K.

In: Applied Physics Letters, Vol. 90, No. 26, 262505, 02.08.2007.

Research output: Contribution to journalArticle

Lo, FY, Melnikov, A, Reuter, D, Wieck, AD, Ney, V, Kammermeier, T, Ney, A, Schörmann, J, Potthast, S, As, DJ & Lischka, K 2007, 'Magnetic and structural properties of Gd-implanted zinc-blende GaN', Applied Physics Letters, vol. 90, no. 26, 262505. https://doi.org/10.1063/1.2753113
Lo FY, Melnikov A, Reuter D, Wieck AD, Ney V, Kammermeier T et al. Magnetic and structural properties of Gd-implanted zinc-blende GaN. Applied Physics Letters. 2007 Aug 2;90(26). 262505. https://doi.org/10.1063/1.2753113
Lo, F. Y. ; Melnikov, A. ; Reuter, D. ; Wieck, A. D. ; Ney, V. ; Kammermeier, T. ; Ney, A. ; Schörmann, J. ; Potthast, S. ; As, D. J. ; Lischka, K. / Magnetic and structural properties of Gd-implanted zinc-blende GaN. In: Applied Physics Letters. 2007 ; Vol. 90, No. 26.
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