Submicron GaMn quasicrystals in ferromagnetic GaAs

J. P. Zhang; A. K. Cheetham; K. Sun; J. S. Wu; K. H. Kuo; J. Shi; D. D. Awschalom

doi:10.1063/1.119486

Submicron GaMn quasicrystals in ferromagnetic GaAs

J. P. Zhang^*, A. K. Cheetham, K. Sun, J. S. Wu, K. H. Kuo, J. Shi, D. D. Awschalom

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

GaMn icosahedral particles with quasicrystalline order have been found in Mn implanted and rapidly annealed GaAs by means of selected-area electron diffraction, high-resolution, and dark-field electron microscopy. The orientation relationship between the submicron quasicrystals with the icosahedral (2/m 3̄5̄) symmetry and the face-centered cubic (fcc) GaAs matrix is determined to be: i5̄ (the fivefold inversion axis in (2/m 3̄5̄))//[110]_GaAs, i3̄(the threefold inversion axis)//[111̄]_GaAs, and i2(the twofold axis)//[121̄]_GaAs. The statistics of these structural studies, combined with magnetic force microscopy, indicate that the submicron quasicrystals are ferromagnetic.

Original language	English (US)
Pages (from-to)	143-145
Number of pages	3
Journal	Applied Physics Letters
Volume	71
Issue number	1
DOIs	https://doi.org/10.1063/1.119486
State	Published - Jul 7 1997

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Submicron GaMn quasicrystals in ferromagnetic GaAs",

abstract = "GaMn icosahedral particles with quasicrystalline order have been found in Mn implanted and rapidly annealed GaAs by means of selected-area electron diffraction, high-resolution, and dark-field electron microscopy. The orientation relationship between the submicron quasicrystals with the icosahedral (2/m {\=3}{\=5}) symmetry and the face-centered cubic (fcc) GaAs matrix is determined to be: i{\=5} (the fivefold inversion axis in (2/m {\=3}{\=5}))//[110]GaAs, i{\=3}(the threefold inversion axis)//[11{\=1}]GaAs, and i2(the twofold axis)//[12{\=1}]GaAs. The statistics of these structural studies, combined with magnetic force microscopy, indicate that the submicron quasicrystals are ferromagnetic.",

author = "Zhang, {J. P.} and Cheetham, {A. K.} and K. Sun and Wu, {J. S.} and Kuo, {K. H.} and J. Shi and Awschalom, {D. D.}",

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T1 - Submicron GaMn quasicrystals in ferromagnetic GaAs

AU - Zhang, J. P.

AU - Cheetham, A. K.

AU - Sun, K.

AU - Wu, J. S.

AU - Kuo, K. H.

AU - Shi, J.

AU - Awschalom, D. D.

PY - 1997/7/7

Y1 - 1997/7/7

N2 - GaMn icosahedral particles with quasicrystalline order have been found in Mn implanted and rapidly annealed GaAs by means of selected-area electron diffraction, high-resolution, and dark-field electron microscopy. The orientation relationship between the submicron quasicrystals with the icosahedral (2/m 3̄5̄) symmetry and the face-centered cubic (fcc) GaAs matrix is determined to be: i5̄ (the fivefold inversion axis in (2/m 3̄5̄))//[110]GaAs, i3̄(the threefold inversion axis)//[111̄]GaAs, and i2(the twofold axis)//[121̄]GaAs. The statistics of these structural studies, combined with magnetic force microscopy, indicate that the submicron quasicrystals are ferromagnetic.

AB - GaMn icosahedral particles with quasicrystalline order have been found in Mn implanted and rapidly annealed GaAs by means of selected-area electron diffraction, high-resolution, and dark-field electron microscopy. The orientation relationship between the submicron quasicrystals with the icosahedral (2/m 3̄5̄) symmetry and the face-centered cubic (fcc) GaAs matrix is determined to be: i5̄ (the fivefold inversion axis in (2/m 3̄5̄))//[110]GaAs, i3̄(the threefold inversion axis)//[111̄]GaAs, and i2(the twofold axis)//[121̄]GaAs. The statistics of these structural studies, combined with magnetic force microscopy, indicate that the submicron quasicrystals are ferromagnetic.

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Submicron GaMn quasicrystals in ferromagnetic GaAs

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