close

Publications and Patents

Selected publications

2019 - 2015

Adhikari R., Volobuev V. V., Faina B., Springholz G., and Bonanni A.:
Ferromagnetic phase transition in topological crystalline insulator thin films: Interplay of anomalous Hall angle and magnetic anisotropy, in Phys. Rev. B, vol. 100, pp. 134422, 2019

Dietl T., Bonanni A., Ohno H.:
Families of magnetic semiconductors — an overview, in J. Semicond., vol. 40, pp. 080301, 2019

A. Nikolenko, Viktor Strelchuk, Bogdan Tsykaniuk, Dmytro Kysylychyn, Giulia Capuzzo, and Alberta Bonanni
Resonance Raman sprectroscopy of Mn-Mgk cation complexes in GaN, in Crystals 9, 235, 2019, doi:10.3390/cryst9050235

Qi B., Gunnlaugsson H., Mokhles Gerami A., Gislason H., Ólafsson S., Magnus F., Mølhol T., Masenda H., Tarazaga A., Bonanni A., Krastev P., Masondo V., Unzueta I., Bharuth-Ram K., Johnston K., Naidoo D., Schell J., Schaaf P., collaboration t.:
57Fe Mössbauer study of epitaxial TiN thin film grown on MgO (1 0 0) by magnetron sputtering, in Appl. Surf. Sci., vol. 464, pp. 682-691, 2019

Navarro-Quezada A., Devillers T., Li T., Bonanni A.:
Tuning the Size, Shape and Density of γ′-GayFe4−yN Nanocrystals Embedded in GaN, in Crystals 9(1), 50, 2019

Navarro-Quezada A., Aiglinger M., Faina B., Gas K., Matzer M., Li T., Adhikari R., Sawicki M., Bonanni A.:
Magnetotransport in phase-separated (Ga,Fe)N with γ’-GayFe4−yN nanocrystals, in Phys. Rev. B 99, 085201, 2019

Martin Sanchez J., Mariscal A., De Luca M., Tarazaga A., Gramse G., Halilovic A., Serna R., Bonanni A., Zardo I., Trotta R., Rastelli A.:
Effects of dielectric stoichiometry on the photoluminescence properties of encapsulated WSe2 monolayers, in Nano Research, vol. 11, pp. 1399-1414, 2018

Del Bianco L., Spizzo F., Li T., Adhikari R., Bonanni A.:
Influence of Mn co-doping on the magnetic properties of planar arrays of GaxFe4-xN nanocrystals in a GaN matrix, in Phys. Chem. Chem. Phys., 2018, DOI: 10.1039/C8CP04475A

Mariscal A., Quesada A., Tarazaga A., García M.A., Bonanni A., Fernández J.F., Serna R.:
Europium monoxide nanocrystalline thin films with high near-infrared transparency, in Appl. Surf. Sci., vol. 456, pp. 980-984, 2018

Martin Sanchez J., Mariscal A., De Luca M., Tarazaga A., Gramse G., Halilovic A., Serna R., Bonanni A., Zardo I., Trotta R., Rastelli A.:
Effects of dielectric stoichiometry on the photoluminescence properties of encapsulated WSe2 monolayers, in Nano Research, vol. 11, pp. 1399-1414, 2018

Kysylychyn D., Suffczynski J., Wozniak T., Szwacki N. G., Bonanni A.:
Resonant excitation of infrared emission in GaN:(Mn,Mg), in Phys. Rev. B 97, 245311, 2018

Capuzzo G., Kysylychyn D., Adhikari R., Li T., Faina B., Tarazaga A., Bonanni A.:
All-nitride AlxGa1-xN:Mn/GaN distributed Bragg reflectors for the near-infrared, in Sci. Rep, vol. 7, pp. 42697 /1-9, 2017

Pachlhofer J., Tarazaga A., Franz R., Franzke E., Köstenbauer H., Winkler J., Bonanni A., Mitterer C.:
Industrial-scale sputter deposition of molybdenum oxide thin films: Microstructure evolution and properties, in J. Vac. Sci. Technol. A, vol. 35, pp. 021504/1-8, 2017

Pachlhofer J., Tarazaga A., Franz R., Franzke E., Köstenbauer H., Winkler J., Bonanni A., Mitterer C.:
Non-reactive dc magnetron sputter deposition of Mo-O thin films from ceramic MoOx targets, in Surf. & coat. technol., vol. 332, pp. 80-85, 2017

Tarazaga A., Köstenbauer H., Winkler J., Bonanni A.:
Processing and charge state engineering of MoOx, in AIP Advances, vol. 7, pp. 015034/1-6, 2017

Cerqueira M., Vieira L., Alves A., Correia R., Huber M., Andreev A., Bonanni A., Vasilevskiy M.:
Raman and IR-ATR spectroscopy studies of heteroepitaxial structures with a GaN:C top layer, in J. Phys. D: Appl. Phys., vol. 50, pp. 365103/1-12, 2017

Huber M., Daumiller I., Andreev A., Silvestri M., Knuuttila L., Lundskog A., Wahl M., Kopnarski M., Bonanni A.:
Characterization of AlN/AlGaN/GaN:C heterostructures grown on Si(111) using atom probe tomography, secondary ion mass spectrometry, and vertical current-voltage measurements, in J. Appl. Phys., vol. 119, pp. 125701/1-6, 2016

Adhikari R., Li T., Capuzzo G., Bonanni A.:
Controlling a three dimensional electron slab of graded AlxGa1−xN, in Appl. Phys. Lett., vol. 108, pp. 022105/1-4, 2016

Huber M., Curatola G., Pozzovivo G., Daumiller I., Knuuttila L., Silvestri M., Bonanni A., Lundskog A.:
Decoupling of epitaxy-related trapping effects in AlGaN/GaN metal–insulator semiconductor high-electron-mobility transistors, in Phys. Stat. Solidi A, vol. 213, no. 5, pp. 1222-1228, 2016

Adhikari R., Matzer M., Tarazaga A., Scharber M., Bonanni A.:
Rashba semiconductor as spin Hall material: Experimental demonstration of spin pumping in wurtzite n-GaN:Si, in Phys. Rev. B, vol. 94, pp. 085205/1-10, 2016

Sztenkiel D., Foltyn M., Mazur G., Adhikari R., Kosiel K., Gas K., Zgirski M., Kruszka R., Jakiela R., Li T., Piotrowska A., Bonanni A., Sawicki M., Dietl T.:
Stretching magnetism with an electric field in a nitride semiconductor, in Nature Communications, vol. 7, pp. 13232/1-9, 2016

Meingast A., Navarro-Quezada A., Devillers T., Kovacs A., Albu M., Fladischer S., Bonanni A., Kothleitner G.:
Analytical electron microscopy study on gallium nitride systems doped with manganese and iron, in Semicond. Sci. Technol., vol. 30, pp. 035002/1-9, 2015

Huber M., Silvestri M., Knuuttila L., Pozzovivo G., Andreev A., Kadashchuk A., Bonanni A., Lundskog A.:
Impact of residual carbon impurities and gallium vacancies on trapping effects in AlGaN/GaN metal insulator semiconductor high electron mobility transistors, in Appl. Phys. Lett. 107, 032106/1-4 (2015), vol. 107, pp. 032106/1-4, 2015

Rovezzi M., Schlögelhofer W., Devillers T., Szwacki N., Li T., Adhikari R., Glatzel P., Bonanni A.:
Incorporation of Mn in AlxGa1-xN probed by x-ray absorption and emission spectroscopy, high-resolution microscopy, x-ray diffraction, and first-principles calculations, in Phys. Rev. B, vol. 92, pp. 115308/1-9, 2015

Devillers T., Li T., Adhikari R., Capuzzo G., Bonanni A.:
Mn as Surfactant for the Self-Assembling of AlxGa1-xN/GaN Layered Heterostructures, in Cryst. Growth Des., vol. 15, pp. 587-592, 2015

Dietl T., Sato K., Fukushima T., Bonanni A., Jamet M., Barski A., Kuroda S., Tanaka M., Nam Hai P., Katayama-Yoshida H.:
Spinodal nanodecomposition in semiconductors doped with transition metals, in Rev. Mod. Phys., vol. 87, pp. 1311 -1377, 2015

Adhikari R., Stefanowicz W., Faina B., Capuzzo G., Sawicki M., Dietl T., Bonanni A.:
Upper bound for the s−d exchange integral in n-(Ga,Mn)N:Si from magnetotransport studies, in Phys. Rev. B, vol. 91, pp. 205204/1-7, 2015

2014 - 2010

Stefanowicz W., Adhikari R., Andrearczyk T., Faina B., Sawicki M., Majewski J., Dietl T., Bonanni A.:
Experimental determination of Rashba spin-orbit coupling in wurtzite n-GaN:Si, in Phys. Rev. B, vol. 89, pp. 205201/1-5, 2014

Grois A., Devillers T., Li T., Bonanni A.:
Planar array of self-assembled GaxFe4-xN nanocrystals in GaN: magnetic anisotropy determined via ferromagnetic resonance, in Nanotechnol., vol. 25, no. 39, pp. 395704, 2014

Kovacs A., Schaffer B., Moreno M., Jinschek J., Craven A., Dietl T., Bonanni A., Dunin-Borkowksi R.:
Characterization of Fe-N nanocrystals and nitrogen-containing inclusions in (Ga,Fe)N thin films using transmission electron microscopy, in J. Appl. Phys., vol. 114, pp. 033530/1-7, 2013

Devillers T., Leite D., Dias da Silva J., Bonanni A.:
Functional Mn-Mgk cation complexes in GaN featured by Raman spectroscopy, in Appl. Phys. Lett, vol. 103, pp. 211909/1-4, 2013

Stefanowicz S., Kunert G., Simserides C., Majewski J., Stefanowicz W., Kruse C., Figge S., Li T., Jakiela R., Trohidou K., Bonanni A., Hommel D., Sawicki M., Dietl T.:
Phase diagram and critical behavior of the random ferromagnet Ga1−xMnxN, in Phys. Rev. B, vol. 88, pp. 081201(R)/1-4, 2013

Rousset J., Papierska J., Pacuski W., Golnik A., Nawrocki M., Stefanowicz W., Stefanowicz S., Sawicki M., Jakiela R., Dietl T., Navarro-Quezada A., Faina B., Li T., Bonanni A., Suffczynski J.:
Relation between exciton splittings, magnetic circular dichroism, and magnetization in wurtzite Ga1−xFexN, in Phys. Rev. B, vol. 88, pp. 115208/1-7, 2013

Li T., Larciprete R., Turchini S., Zema N., Bonanni A., Di Trolio A.:
Substrate-Driven Formation of Bidimensional Arrays of Co Nanocrystals in TiO2 Thin Films, in J. Phys. Chem. C, vol. 117, pp. 687-691, 2013

Kowalik I., Persson A., Nino M., Navarro-Quezada A., Faina B., Bonanni A., Dietl T., Avarnitis D.:
Element-specific characterization of heterogeneous magnetism in (Ga,Fe)N films, in Phys. Rev. B, vol. 85, pp. 184411/1-8, 2012

Kunert G., Dobkowska S., Li T., Reuther H., Kruse C., Figge S., Jakiela R., Bonanni A., Grenzer J., Stefanowicz W., von Borany J., Sawicki M., Dietl T., Hommel D.:
Ga1-xMnxN epitaxial films with high magnetization, in Appl. Phys. Lett., vol. 101, pp. 022413/1-4, 2012

Devillers T., Rovezzi M., Szwacki N., Dobkowska S., Stefanowicz W., Sztenkiel D., Grois A., Suffczynski J., Navarro-Quezada A., Faina B., Li T., Glatzel P., D'Acapito F., Jakiela R., Sawicki M., Majewski J., Dietl T., Bonanni A.:
Manipulating Mn-Mgk cation complexes to control the charge- and spin-state of Mn in GaN, in Sci. Rep., vol. 2, no. 722, 2012

Sawicki M., Devillers T., Galeski S., Simserides C., Dobkowska S., Faina B., Grois A., Navarro-Quezada A., Trohidou K., Majewski J., Dietl T., Bonanni A.:
Origin of low-temperature magnetic ordering in Ga1-xMnxN, in Phys. Rev. B, vol. 85, pp. 205204/1-4, 2012

Navarro-Quezada A., Devillers T., Li T., Bonanni A.:
Planar arrays of magnetic nanocrystals embedded in GaN, in Appl. Phys. Lett., vol. 101, pp. 081911/1-4, 2012

Bonanni A.:
(Nano)characterization of semiconductor materials and structures, in Semicond. Sci. Technol., vol. 26, pp. 060301, 2011

Leite D., Li T., Devillers T., Schiaber Z., Lisboa-Filho P., Bonanni A., Dias da Silva J.:
Columnar microstructure of nanocrystalline Ga1-xMnxN films deposited by reactive sputtering, in J. Cryst. Growth, vol. 327, pp. 209-214, 2011

Winkler T., Stone P., Li T., Yu K., Bonanni A., Dubon O.:
Compensation-dependence of magnetic and electrical properties in Ga1-xMnxP, in Appl. Phys. Lett., vol. 98, pp. 012103/1-3, 2011

Suffczynski J., Grois A., Pacuski W., Golnik A., Gaj J., Navarro-Quezada A., Faina B., Devillers T., Bonanni A.:
Effects of s, p - d and s - p exchange interactions probed by exciton magnetospectroscopy in (Ga,Mn)N, in Phys. Rev. B, vol. 83, pp. 094421, 2011

Bonanni A., Sawicki M., Devillers T., Stefanowicz W., Faina B., Li T., Winkler T., Sztenkiel D., Navarro-Quezada A., Rovezzi M., Jakiela R., Grois A., Wegscheider M., Jantsch W., Suffczynski J., D'Acapito F., Meingast A., Kothleitner G., Dietl T.:
Experimental probing of exchange interactions between localized spins in the dilute magnetic insulator (Ga,Mn)N, in Phys. Rev. B, vol. 48, pp. 035206, 2011

Navarro-Quezada A., Gonzalez Szwacki N., Stefanowicz W., Li T., Grois A., Devillers T., Rovezzi M., Jakiela R., Faina B., Majewski J., Sawicki M., Dietl T., Bonanni A.:
Fe-Mg interplay and the effect of deposition mode in (Ga,Fe)N doped with Mg, in Physical Review B, vol. 84, pp. 155321, 2011

Papierska J., Rousset S., Pacuski W., Kossacki P., Golnik A., Nawrocki M., Gaj J., Suffczynski J., Kovalik I., Stefanowicz W., Sawicki M., Dietl T., Navarro-Quezada A., Faina B., Li T., Bonanni A.:
Magnetooptical Properties of (Ga,Fe)N Layers, in Acta Phys. Polon. A, vol. 120, pp. 921-923, 2011

Liday J., Vogrincic P., Hotovy I., Bonanni A., Sitter H.:
Ohmic Contacts to p-GaN to p-GaN using Au/Ni-Zn-O Metallization, in J. of Electrical Engineering, vol. 62, pp. 309-312, 2011

Bonanni A., Dietl T.:
A story of high-temperature ferromagnetism in semiconductors, in Chem. Soc. Rev, vol. 39, pp. 528-539, 2010

Navarro-Quezada A., Stefanowicz W., Li T., Faina B., Rovezzi M., Lechner R., Devillers T., D'Acapito F., Bauer G., Sawicki M., Dietl T., Bonanni A.:
Embedded magnetic phases in (Ga,Fe)N: Key role of growth temperature, in Phys. Rev. B, vol. 81, pp. 205206/1-11, 2010

Hotovy I., Kups T., Hotovy J., Liday J., Buc D., Caplovicova M., Rehacek V., Sitter H., Simbrunner C., Bonanni A., Spiess L.:
Structural Evolution of Sputtered Indium Oxide Thin Fillms, in J. Electr. Eng., vol. 61, pp. 382–385, 2010

Stefanowicz W., Sztenkiel D., Faina B., Grois A., Rovezzi M., Devillers T., Navarro-Quezada A., Li T., Jakiela R., Sawicki M., Dietl T., Bonanni A.:
Structural and paramagnetic properties of dilute Ga1-xMnxN, in Phys. Rev. B, vol. 81, pp. 235210/1-14, 2010

Selected publications

2009 - 2004

Rovezzi M., D'Acapito F., Navarro-Quezada A., Faina B., Li T., Bonanni A., Filippone F., Bonapasta A.:
Local Structure of (Ga,Fe)N and (Ga,Fe)N:Si investigated by x-ray absorption fine structure spectroscopy, in Phys. Rev. B, vol. 79, pp. 195209/1-9, 2009

Morana M., Wegscheider M., Bonanni A., Kopidakis N., Shaheen S., Scharber M., Zhu Z., Waller D., Gaudianad R., Brabec C.:
Bipolar charge transport in PCPDTBT-PCBM bulk-heterojunctions for photovoltaic applications, in Adv. Func. Mat, vol. 18, pp. 1757-1766, 2008

Bonanni A., Navarro-Quezada A., Li T., Wegscheider M., Matej Z., Holy V., Lechner R., Bauer G., Rovezzi M., D'Acapito F., Kiecana M., Sawicki M., Dietl T.:
Controlled aggregation of magnetic ions in a semiconductor: an experimental demonstration, in Phys. Rev. Lett., vol. 101, pp. 135502/1-4, 2008

Wegscheider M., Li T., Navarro-Quezada A., Faina B., Bonanni A., Pacuski W., Jakiela R., Dietl T.:
Effects of magnetic ions on optical properties: the case of (Ga,Fe) N, in J. Phys.: Condens. Matter, vol. 20, pp. 454222/1-6, 2008

Navarro-Quezada A., Li T., Simbrunner C., Kiecana M., Hernandez-Sosa G., Quast M., Wegscheider M., Sawicki M., Dietl T., Bonanni A.:
Fe onto GaN(0001) grown in a full MOVPE process, in J. Cryst. Growth, pp. 1772-1776, 2008

Li T., Simbrunner C., Wegscheider M., Navarro-Quezada A., Quast M., Schmidegg K., Bonanni A.:
GaN:delta-Mg grown by MOVPE: Structural properties and their effect on the electronic and optical behaviour, in J. Cryst. Growth, vol. 310, pp. 13-21, 2008

Simbrunner C., Kharchenko A., Navarro-Quezada A., Wegscheider M., Quast M., Li T., Bonanni A., Bethke J., Lischka K., Sitter H.:
In situ monitoring of periodic structures during MOVPE of III-nitrides, in J. Cryst. Growth, vol. 310, pp. 1607-1613, 2008

Liday J., Hotovy I., Sitter H., Vogrincic P., Vincze A., Vavra I., Satka A., Ecke G., Bonanni A., Breza J., Simbrunner C., Plochberger B.:
Investigation of NiOx-based contacts on p-GaN, in J. Mater. Sci: Mater. Electron., vol. 19, pp. 855-862, 2008

Pacuski W., Kossacki P., Ferrand D., Golnik A., Cibert J., Wegscheider M., Navarro-Quezada A., Bonanni A., Kiecana M., Sawicki M., Dietl T.:
Observation of Strong-Coupling Effects in a Diluted Magnetic Semiconductor Ga1-xFexN, in Phys. Rev. Lett., 2008

Wegscheider M., Simbrunner C., Li T., Jakiela R., Navarro-Quezada A., Quast M., Sitter H., Bonanni A.:
Periodic Mg distribution in GaN:delta-Mg and the effect of annealing on structural and optical properties, in Appl. Surf. Sci, vol. 255, pp. 731-733, 2008

Li T., Simbrunner C., Navarro-Quezada A., Wegscheider M., Quast M., Litvinov D., Gerthsen D., Bonanni A.:
Phase-dependent distribution of Fe-rich nanocrystals in MOVPE-grown (Ga,Fe)N, in J. of Nanosc. and Nanotechnol., pp. 3294-3298, 2008

Liday J., Hotovy I., Sitter H., Schmidegg K., Vogrincic P., Bonanni A., Breza J., Ecke G., Vavra I.:
Auger electron spectroscopy of Au/NiOx contacts on p-GaN annealed in N2 and O2 + N2 ambients, in Appl. Surf. Sci, vol. 253, pp. 3174-3180, 2007

Bonanni A.:
Ferromagnetic nitride-based semiconductors doped with transition metals and rare earths, in Semicon. Sci, Technol., vol. 22, pp. R41-R56, 2007

Simbrunner C., Sitter H., Bonanni A.:
Fourier analysis applied on in situ laser reflectometry during III-nitride MOCVD growth, in J. Appl. Phys., vol. 101, pp. 093501/1-7, 2007

Simbrunner C., Li T., Bonanni A., Kharchenko A., Bethke J., Lischka K., Sitter H.:
In-situ growth observation of GaN/AlGaN superlattice structures by simultaneous x-ray diffraction and ellipsometry, in J. Cryst. Growth, vol. 308, pp. 258-262, 2007

Simbrunner C., Navarro-Quezada A., Schmidegg K., Bonanni A., Kharchenko A., Bethke J., Lischka K., Sitter H.:
In-situ x-ray diffraction during MOCVD of III-nitrides, in Phys. Stat. Sol (a), vol. 204, pp. 2798-2803, 2007

Simbrunner C., Schmidegg K., Bonanni A., Kharchenko A., Bethke J., Woitok J., Lischka K., Sitter H.:
In-situ x-ray diffraction during MOCVD of III-nitrides: an optimized wobbling compensating evaluation algorithm, in J. Cryst. Growth, vol. 298, pp. 243-245, 2007

Bonanni A., Jakiela R., Li T., Navarro-Quezada A., Quast M., Simbrunner C., Sitter H., Wegscheider M.:
On the effect of periodic Mg distribution in GaN:delta-Mg, in Appl. Phys. Lett, vol. 90, pp. 142108/1-3, 2007

Bonanni A., Kiecana M., Simbrunner C., Li T., Sawicki M., Wegscheider M., Quast M., Przybylinska H., Navarro-Quezada A., Jakiela R., Wolos A., Jantsch W., Dietl T.:
Paramagnetic GaN:Fe and ferromagnetic (Ga,Fe)N: The relationship between structural, electronic, and magnetic properties, in Phys. Rev. B, vol. 75, pp. 125210/1-18, 2007

Bonanni A., Dietl T., Jantsch W., Kiecana M., Navarro-Quezada A., Przybylinska H., Sawicki M., Simbrunner C., Sitter H., Wegscheider M.:
Photoluminescence and Hall studies of GaN:Fe and (Ga,Fe)N:Mg layers, in Phys. stat. sol. (a), vol. 204, pp. 86-91, 2007

Hotovy I., Liday J., Spiess L., Romanus H., Caplovicova M., Sitter H., Buc D., Bonanni A., Vogrincic P.:
TEM investigation of Au-Nio nonocrystalline thin films as gas sensing material, in J. Electr. Eng, vol. 58, pp. 247-350, 2007

Bonanni A., Jantsch W., Przybylinska H., Simbrunner C., Sitter H., Wegscheider M., Wolos A.:
Doping of GaN with Fe and Mg for spintronics applications, in Physica Status Sol (B) Basic Research, vol. 243 (7), pp. 1701-1705, 2006

Simbrunner C., Schmidegg K., Bonanni A., Kharchenko A., Bethke J., Woitok J., Lischka K., Sitter H.:
In-situ and real-time monitoring of MOCVD growth of III-nitrides by simultaneous multi-wavelength-ellipsometry and X-ray diffraction, in Phys. Stat. Sol (a), vol. 203 (7), pp. 1704-1707, 2006

Bonanni A., Neuwirt G., Schmidegg K., Sitter H., Stifter D.:
In situ optical analysis of low-temperature MOCVD GaN nucleation layer formation via multiple wavelength ellipsometry, in J. Crystal Growth, vol. 272, 2004

Patents

Bonanni A., Devillers T., Dietl T., Li T., Navarro-Quezada A.:
A method to embed magnetic nanocystals into a semiconductor, 2013

Bonanni A., Devillers T., Dietl T., Grois A., Suffczynski J.:
Halbleiterlaser, 2013