Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N

Alberta Bonanni; M. Sawicki; Thibaut Devillers; W. Stefanowicz; B. Faina; Tian Li; T.E. Winkler; D. Sztenkiel; A. Navarro-Quezada; M. Rovezzi; R. Jakiela; Andreas Grois; M. Wegscheider; W. Jantsch; J. Suffczynski; F.D. Acapito; Arno Meingast; Gerald Kothleitner; T. Dietl

doi:10.1103/PhysRevB.84.035206

Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N

Alberta Bonanni, M. Sawicki, Thibaut Devillers, W. Stefanowicz, B. Faina, Tian Li, T.E. Winkler, D. Sztenkiel, A. Navarro-Quezada, M. Rovezzi, R. Jakiela, Andreas Grois, M. Wegscheider, W. Jantsch, J. Suffczynski, F.D. Acapito, Arno Meingast, Gerald Kothleitner, T. Dietl

Institute of Electron Microscopy and Nanoanalysis (5190)

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

Abstract

The sign, magnitude, and range of the exchange couplings between pairs of Mn ions is determined for(Ga,Mn)N and (Ga,Mn)N:Si with x 3%. The samples have been grown by metalorganic vapor phase epitaxyand characterized by secondary-ion mass spectroscopy; high-resolution transmission electron microscopy withcapabilities allowing for chemical analysis, including the annular dark-field mode and electron energy lossspectroscopy; high-resolution and synchrotron x-ray diffraction; synchrotron extended x-ray absorption finestructure;synchrotron x-ray absorption near-edge structure; infrared optics; and electron spin resonance. Theresults of high-resolution magnetic measurements and their quantitative interpretation have allowed us to verify aseries of ab initio predictions on the possibility of ferromagnetism in dilute magnetic insulators and to demonstratethat the interaction changes from ferromagnetic to antiferromagnetic when the charge state of the Mn ions isreduced from 3+ to 2+.

Original language	English
Pages (from-to)	035206
Number of pages	11
Journal	Physical Review B
Volume	84
DOIs	https://doi.org/10.1103/PhysRevB.84.035206
Publication status	Published - 2011

ASJC Scopus subject areas

Materials Science(all)

Fields of Expertise

Advanced Materials Science

Treatment code (Nähere Zuordnung)

Basic - Fundamental (Grundlagenforschung)

Access to Document

10.1103/PhysRevB.84.035206

Cite this

Bonanni, A., Sawicki, M., Devillers, T., Stefanowicz, W., Faina, B., Li, T., Winkler, T. E., Sztenkiel, D., Navarro-Quezada, A., Rovezzi, M., Jakiela, R., Grois, A., Wegscheider, M., Jantsch, W., Suffczynski, J., Acapito, F. D., Meingast, A., Kothleitner, G., & Dietl, T. (2011). Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N. Physical Review B, 84, 035206. https://doi.org/10.1103/PhysRevB.84.035206

Bonanni, A, Sawicki, M, Devillers, T, Stefanowicz, W, Faina, B, Li, T, Winkler, TE, Sztenkiel, D, Navarro-Quezada, A, Rovezzi, M, Jakiela, R, Grois, A, Wegscheider, M, Jantsch, W, Suffczynski, J, Acapito, FD, Meingast, A, Kothleitner, G & Dietl, T 2011, 'Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N', Physical Review B, vol. 84, pp. 035206. https://doi.org/10.1103/PhysRevB.84.035206

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title = "Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N",

abstract = "The sign, magnitude, and range of the exchange couplings between pairs of Mn ions is determined for(Ga,Mn)N and (Ga,Mn)N:Si with x 3%. The samples have been grown by metalorganic vapor phase epitaxyand characterized by secondary-ion mass spectroscopy; high-resolution transmission electron microscopy withcapabilities allowing for chemical analysis, including the annular dark-field mode and electron energy lossspectroscopy; high-resolution and synchrotron x-ray diffraction; synchrotron extended x-ray absorption finestructure;synchrotron x-ray absorption near-edge structure; infrared optics; and electron spin resonance. Theresults of high-resolution magnetic measurements and their quantitative interpretation have allowed us to verify aseries of ab initio predictions on the possibility of ferromagnetism in dilute magnetic insulators and to demonstratethat the interaction changes from ferromagnetic to antiferromagnetic when the charge state of the Mn ions isreduced from 3+ to 2+.",

author = "Alberta Bonanni and M. Sawicki and Thibaut Devillers and W. Stefanowicz and B. Faina and Tian Li and T.E. Winkler and D. Sztenkiel and A. Navarro-Quezada and M. Rovezzi and R. Jakiela and Andreas Grois and M. Wegscheider and W. Jantsch and J. Suffczynski and F.D. Acapito and Arno Meingast and Gerald Kothleitner and T. Dietl",

year = "2011",

doi = "10.1103/PhysRevB.84.035206",

language = "English",

volume = "84",

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journal = "Physical Review B",

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T1 - Experimental probing of exchange interactions between localized spins in the dilute magneticinsulator (Ga,Mn)N

AU - Bonanni, Alberta

AU - Sawicki, M.

AU - Devillers, Thibaut

AU - Stefanowicz, W.

AU - Faina, B.

AU - Li, Tian

AU - Winkler, T.E.

AU - Sztenkiel, D.

AU - Navarro-Quezada, A.

AU - Rovezzi, M.

AU - Jakiela, R.

AU - Grois, Andreas

AU - Wegscheider, M.

AU - Jantsch, W.

AU - Suffczynski, J.

AU - Acapito, F.D.

AU - Meingast, Arno

AU - Kothleitner, Gerald

AU - Dietl, T.

PY - 2011

Y1 - 2011

N2 - The sign, magnitude, and range of the exchange couplings between pairs of Mn ions is determined for(Ga,Mn)N and (Ga,Mn)N:Si with x 3%. The samples have been grown by metalorganic vapor phase epitaxyand characterized by secondary-ion mass spectroscopy; high-resolution transmission electron microscopy withcapabilities allowing for chemical analysis, including the annular dark-field mode and electron energy lossspectroscopy; high-resolution and synchrotron x-ray diffraction; synchrotron extended x-ray absorption finestructure;synchrotron x-ray absorption near-edge structure; infrared optics; and electron spin resonance. Theresults of high-resolution magnetic measurements and their quantitative interpretation have allowed us to verify aseries of ab initio predictions on the possibility of ferromagnetism in dilute magnetic insulators and to demonstratethat the interaction changes from ferromagnetic to antiferromagnetic when the charge state of the Mn ions isreduced from 3+ to 2+.

AB - The sign, magnitude, and range of the exchange couplings between pairs of Mn ions is determined for(Ga,Mn)N and (Ga,Mn)N:Si with x 3%. The samples have been grown by metalorganic vapor phase epitaxyand characterized by secondary-ion mass spectroscopy; high-resolution transmission electron microscopy withcapabilities allowing for chemical analysis, including the annular dark-field mode and electron energy lossspectroscopy; high-resolution and synchrotron x-ray diffraction; synchrotron extended x-ray absorption finestructure;synchrotron x-ray absorption near-edge structure; infrared optics; and electron spin resonance. Theresults of high-resolution magnetic measurements and their quantitative interpretation have allowed us to verify aseries of ab initio predictions on the possibility of ferromagnetism in dilute magnetic insulators and to demonstratethat the interaction changes from ferromagnetic to antiferromagnetic when the charge state of the Mn ions isreduced from 3+ to 2+.

U2 - 10.1103/PhysRevB.84.035206

DO - 10.1103/PhysRevB.84.035206

M3 - Article

SN - 1098-0121

VL - 84

SP - 035206

JO - Physical Review B

JF - Physical Review B

ER -