Submitted by hgunnlau on Fri, 12/19/2014 - 07:02

Peer-reviewed publications:


Published

P-49: D. V. Zyabkin, U. Vetter, F. M. A. Linderhof, H. P. Gunnlaugsson and P. Schaaf, eMIL: Advanced emission Mössbauer spectrometer for measurements in versatile conditions, Nucl. Instrum. Methods Phys. Res. A (2020), 968, 163973, https://doi.org/10.1016/j.nima.2020.163973

P-48: D. V. Zyabkin, H. P. Gunnlaugsson, J. N. Gonçalves, K. Bharuth-Ram, B. Qi, I. Unzueta, D. Naidoo,R. Mantovan, H. Masenda, S. Ólafsson, G. Peters, J. Schell, U. Vetter, A. Dimitrova, S. Krischok,and P. Schaaf, Experimental and Theoretical Study of Electronic and HyperfineProperties of Hydrogenated Anatase (TiO2): Defect Interplay andThermal Stability, J. Phys. Chem. C (2020), 124, 13, 7511–7522, https://doi.org/10.1021/acs.jpcc.0c00085

P-47: B. Qi, H. P. Gunnlaugsson, A. Mokhles Gerami, H. P. Gislason, S. Ólafsson, F. Magnus, T. E. Mølholt, H. Masenda, A. Tarazaga Martín-Lueugo, A. Bonanni, P. B. Krastev, V. Masondo, I. Unzueta, K. Bharuth-Ram, K. Johnston, D. Naidoo, J. Schell, P. Schaaf, 57Fe Mössbauer study of epitaxial TiN thin film grown on MgO (1 0 0) by magnetron sputtering, Applied Surface Science, 464 (2019) 682-691, https://doi.org/10.1016/j.apsusc.2018.09.107

P-46: R. Mantovan, R. Fallica, A. Mokhles Gerami, T. E. Mølholt, C. Wiemer, M. Longo, H. P. Gunnlaugsson, K. Johnston, H. Masenda, D. Naidoo, M. Ncube, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, G. Langouche, S. Ólafsson, G. Weyer, Atomic-scale study of the amorphous-to-crystalline phase transition mechanism in GeTe thin films, Scientific Reports 7 (2017) 8234, https://doi.org/10.1038/s41598-017-08275-5

P-45: T. E. Mølholt, H. P. Gunnlaugsson, K. Johnston, R. Mantovan, J. Röder, V. Adoons, A. M. Gerami, H. Masenda, Y. A. Matveyev, M. Ncube, I. Unzueta, K. Bharuth-Ram, H. P. Gislason, P. Krastev, G. Langouche, D. Naidoo, S. Ólafsson, A. Zenkevich, ISOLDE Collaboration, Charge states and lattice sites of dilute implanted Sn in ZnO, Journal of Physics: Condensed Matter 29 (2017) 155701, https://doi.org/10.1088/1361-648X/aa5e95

P-44: H. Masenda, S. Geburt, K. Bharuth-Ram, D. Naidoo, H. P. Gunnlaugsson, K. Johnston, R. Mantovan, T. E. Mølholt, M. Ncube, S. Shayestehaminzadeh, H. P. Gíslason, G. Langouche, S. Ólafsson, C. Ronning and ISOLDE Collaboration, Emission Mössbauer Spectroscopy study of fluence dependence of paramagnetic relaxation in Mn/ Fe implanted ZnO, Hyperfine Interact. 237 (2016) 40, http://dx.doi.org/10.1007/s10751-016-1293-6

P-43: K. Bharuth-Ram, T. E. Mølholt, G. Langouche, S. Geburt, T. B. Doyle, H. P. Gunnlaugsson, K. Johnston, R. Mantovan, H. Masenda, D. Naidoo, M. Ncube, H. Gislason, S. Ólafsson, C. Ronning and G. Weyer, Sensitivity of 57Fe Emission Mössbauer Spectroscopy to Ar and C induced defects in ZnO, Hyperfine Interact. 237 (2016) 81, http://dx.doi.org/10.1007/s10751-016-1286-5

P-42: A. Mokhles Gerami, K. Johnston, H. P. Gunnlaugsson, K. Nomura, R. Mantovan, H. Masenda, Y. A. Matveyev, T. E. Mølholt, M. Ncube, S. Shayestehaminzadeh, I. Unzueta, H. Gislason, P. B. Krastev, G. Langouche, D. Naidoo, S. Ólafsson, the ISOLDE collaboration, 57Fe Emission Mössbauer Spectroscopy following dilute implantation of 57Mn into In2O3, Hyperfine Interact. 237 (2015) 75, http://dx.doi.org/10.1007/s10751-016-1258-9

P-41: P. B. Krastev, H. P. Gunnlaugsson, K. Nomura, V. Adoons, A. M. Gerami,5, K. Johnston, M. Ncube, R. Mantovan, H. Masenda, Y. A. Matveyev, T. E. Mølholt, I. Unzueta, K. Bharuth-Ram, H. Gislason, G. Langouche, D. Naidoo, S. Ólafsson, A. Zenkevich, the ISOLDE collaboration, 57Fe Emission Mössbauer Study on Gd3Ga5O12 implanted with dilute 57Mn, Hyperfine Interact. 237 (2016) 37, http://dx.doi.org/10.1007/s10751-016-1266-9

P-40: H. Masenda, D. Naidoo, K. Bharuth-Ram, H. P. Gunnlaugsson, K. Johnston, R. Mantovan, T. E. Mølholt, M. Ncube, S. Shayestehaminzadeh, H. P. Gislason, G. Langouche, S. Ólafsson, G. Weyer, Lattice sites, charge states and spin-lattice relaxation of Fe ions in 57Mn+ implanted GaN and AlN, Journal of Magnetism and Magnetic Materials 401 (2016) 1130–1138, http://dx.doi.org/10.1016/j.jmmm.2015.11.026

P-39: H. P. Gunnlaugsson, K. Bharuth-Ram, K. Johnston, G. Langouche, R. Mantovan, T. E. Mølholt, D. Naidoo, S. Ólafsson, G. Weyer, Damage annealing in low temperature Fe/Mn implanted ZnO, Hyperfine Interact. 230 (2015) 175-180, http://dx.doi.org/10.1007/s10751-014-1096-6

P-38: R. Mantovan, H. P. Gunnlaugsson, K. Johnston, H. Masenda, T. E. Mølholt, D. Naidoo, M. Ncube, S. Shayestehaminzadeh, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, G. Langouche, S. Ólafsson, L. M. C. Pereira, U. Wahl, P. Torelli and G. Weyer, Atomic-scale magnetic properties of truly 3d-diluted ZnO, Advanced Electronic Materials 1 (2015) 1400039, http://dx.doi.org/10.1002/aelm.201400039

P-37: H. P. Gunnlaugsson, R. Mantovan, H. Masenda, T. E. Mølholt, K. Johnston, K. Bharuth-Ram, H. Gíslason, G. Langouche, D. Naidoo, S. Ólafsson, A. Svane, G. Weyer , the ISOLDE collaboration, Defect annealing in Mn/Fe implanted TiO2 (rutile),  J. Phys. D: Appl. Phys. 47 (2014) 065501, http://dx.doi.org/10.1088/0022-3727/47/6/065501

P-36: T. E. Mølholt, R. Mantovan, H. P. Gunnlaugsson, A. Svane, H. Masenda, D. Naidoo, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, K. Johnston, G. Langouche, S. Olafsson, R. Sielemann, G. Weyer, and the ISOLDE Collaboration, Interstitial Fe in MgO, J. Appl. Phys. 115 (2014) 023508, http://dx.doi.org/10.1063/1.4861403

P-35:  H. P. Gunnlaugsson, K. Nomura, T. E. Mølholt , S. Shayestehaminzadeh, K. Johnston, R. Mantovan, H. Masenda, M. Ncube, K-Bharuth Ramg H. Gislason, G. Langouche, D. Naidoo, S. Ólafsson, G. Weyer, the ISOLDE Collaboration, Characterization of Fe States in Dilute 57Mn implanted SnO2, Hyp. Interact. 226(2014) 389-396, http://dx.doi.org/10.1007/s10751-013-0936-0

P-34: D. Naidoo, H. P. Gunnlaugsson, T. E. Mølholt, R. Mantovan, H. Masenda, K. Bharuth-Ram, K. Johnston, H. P. Gislason, G. Langouche, S. Ólafsson, G. Weyer, R. Sielemann, Stability of the Fe3+ state in ZnO, Hyp. Int. 221 (2013) 45-51, http://dx.doi.org/10.1007/s10751-012-0730-4

P-33: H. P. Gunnlaugsson, K. Johnston, H. Masenda, R. Mantovan, T. E. Mølholt, K. Bharuth-Ram, H. P. Gislason, G. Langouche, M. B. Madsen, D. Naidoo, S. Ólafsson, G. Weyer, Possible cage motion of interstitial Fe in a-Al2O3, Hyp. Int. 219 (2013) 33-40, http://dx.doi.org/10.1007/s10751-012-0697-1

P-32: R. Mantovan, H. P. Gunnlaugsson, D. Naidoo, S. Ólafsson, T. E. Mølholt, K. Johnston, K. Bharuth-Ram, M. Fanciulli, G. Langouche, R. Sielemann, G. Weyer, H. P. Gíslason, M. B. Madsen and the ISOLDE Collaboration, Fe charge state adjustment in ZnO upon ion implantation, J. Phys.: Condens. Matter 24 (2012) 485801, http://dx.doi.org/10.1088/0953-8984/24/48/485801

P-31: K. Bharuth-Ram, H. P. Gunnlaugsson, H. Masenda, R. Sielemann, G. Weyer, U. Köoster, Defect annealing in Sb/Sn implanted diamond investigated with 119Sn Mössbauer spectroscopy, Physica B 407 (2012) 2923–2925, http://dx.doi.org/10.1016/j.physb.2011.08.041

P-30: T. E Mølholt, H. P. Gunnlaugsson, K Johnston, R. Mantovan, H. Masenda, S. Ólafsson, K. Bharuth-Ram, H. P. Gislason, G. Langouche, G. Weyer and the ISOLDE Collaboration, Spin-lattice relaxations of paramagnetic Fe3+ in ZnO, Physica Scripta, T148 (2012) 014006, http://dx.doi.org/10.1088/0031-8949/2012/T148/014006

P-29: H. P. Gunnlaugsson, K. Johnston, T. E. Mølholt, G. Weyer, R. Mantovan, H. Masenda, D. Naidoo, S. Ólafsson, K. Bharuth-Ram, H. P. Gíslason, G. Langouche, M. B. Madsen and the ISOLDE Collaboration, Lattice locations and properties of Fe in Co/Fe co-implanted ZnO, Appl. Phys. Lett.100 (2012) 042109, http://dx.doi.org/10.1063/1.3679692

P-28: K. Bharuth-Ram,  W. B. Dlamini, H. Masenda, D. Naidoo, H. P. Gunnlaugsson, G. Weyer,  R. Mantovan, T. E. Mølholt,  R. Sielemann, S. Ólafsson, G. Langouche, K. Johnston and the ISOLDE Collaboration, 57Fe Mössbauer studies on 57Mn* implanted InP and InAs, Nucl. Instr. Meth. B 272 (2012) 414-417, http://dx.doi.org/10.1016/j.nimb.2011.01.112

P-27: H. Masenda, K. Bharuth-Ram, D. Naidoo, H. P. Gunnlaugsson, T. E. Mølholt, H. P. Gíslason, K. Johnston, R. Mantovan, R. Sielemann, G. Langouche, S. Ólafsson, G. Weyer, the ISOLDE Collaboration, Mössbauer study of 119Sn in 119In* implanted 3C-SiC, Hyp. Int., 208 (2012) 71-74, http://dx.doi.org/10.1007/s10751-011-0438-x

P-26: K. Bharuth-Ram, W.B. Dlamini, H. Masenda, D. Naidoo, H.P. Gunnlaugsson, G. Weyer, R. Mantovan, T.E. Mølholt, R. Sielemann, S. Ólafsson, G. Langouche, K. Johnston, the ISOLDE Collaboration, 57Fe Mössbauer studies on 57Mn* implanted InP and InAs, Nuclear Instruments and Methods B 272 (2012) 414–417, http://dx.doi.org/10.1016/j.nimb.2011.01.112

P-25: T.E. Mølholt, R. Mantovan, H.P. Gunnlaugsson, D. Naidoo, S. Ólafsson, K. Bharuth-Ram, M. Fanciulli, K. Johnston, Y. Kobayashi, G. Langouche, H. Masenda, R. Sielemann, G. Weyer and H.P. Gíslason, Observation of spin-lattice relaxations of dilute Fe3+ in MgO by Mössbauer spectroscopy, Hyp. Int. 197(2010) 89-94, http://dx.doi.org/10.1007/s10751-010-0214-3

P-24: H. P. Gunnlaugsson, R. Sielemann, T.E. Mølholt, W.B. Dlamini, K. Johnston, R. Mantovan, H. Masenda, D. Naidoo, W.N. Sibanda, K. Bharuth-Ram, M. Fanciulli, H.P. Gíslason, G. Langouche, S. Ólafsson, G. Weyer and the ISOLDE Collaboration, Magnetism in iron implanted oxides: a status report, Hyp. Int.197 (2010) 43-52, http://dx.doi.org/10.1007/s10751-010-0195-2

P-23: H. Masenda, D. Naidoo, K. Bharuth-Ram, H.P. Gunnlaugsson, G. Weyer, W.B. Dlamini, R. Mantovan, R. Sielemann,  M. Fanciulli, T.E. Mølholt, S. Ólafsson, G. Langouche, K. Johnston and the ISOLDE Collaboration, Mössbauer study of 57Fe in GaAs and GaP following 57Mn+ implantation, Hyp. Int. 198(2010) 15-22, http://dx.doi.org/10.1007/s10751-010-0215-2

P-22: H.P. Gunnlaugsson, R. Mantovan, T.E. Mølholt, D. Naidoo, K. Johnston, H. Masenda, K. Bharuth-Ram, G. Langouche, S. Ólafsson, R. Sielemann, G. Weyer, Y. Kobayashi  and the ISOLDE Collaboration, Mössbauer spectroscopy of 57Fe in a-Al2O3 following implantation of 57Mn*, Hyp. Int. 198 (2010) 5-14, http://dx.doi.org/10.1007/s10751-010-0184-5

P-21: H. P. Gunnlaugsson, T. E. Mølholt, R. Mantovan, H. Masenda, D. Naidoo, W. B. Dlamini, R. Sielemann, K. Bharuth-Ram, G. Weyer, K. Johnston, G. Langouche S. Ólafsson, H. P. Gíslason, Y. Kobayashi, Y. Yoshida, M. Fanciulli and the ISOLDE Collaboration, Paramagnetism in Mn/Fe implanted ZnO, Appl. Phys. Lett. 97 (2010) 142501, http://dx.doi.org/10.1063/1.3490708

P-20: T. E. Mølholt, R. Mantovan, H. P. Gunnlaugsson, K. Bharuth-Ram, M. Fanciulli, H. P. Gíslason, K. Johnston, Y. Kobayashi, G. Langouche, H. Masenda, D. Naidoo, S. Ólafsson, R. Sielemann, G. Weyer, Temperature and dose dependence of defect complex formation with ion-implanted Mn/Fe in ZnO, Physica B 404(2009) 4820-4822,http://dx.doi.org/10.1016/j.physb.2009.08.187.

P-19: K. Bharuth-Ram, H. P. Gunnlaugsson, G. Weyer, R. Mantovan, D. Naidoo, R. Sielemann, M. Fanciulli, G. Langouche, S. Olafsson, Th. Aigne, ISOLDE Collaboration, Mössbauer study of Fe in GaAs following 57Mn+ implantation, Hyp. Int. 119 (2009) 115–120, http://dx.doi.org/10.1007/s10751-009-9961-4

P-18: H. P. Gunnlaugsson, G. Weyer, R. Mantovan, D. Naidoo, R. Sielemann, K. Bharuth-Ram, M. Fanciulli, K. Johnston, S. Olafsson, G. Langouche, Isothermal defect annealing in semiconductors investigated by time-delayed Mössbauer spectroscopy: application to ZnO, Hyperfine Interact. 188 (2009) 85–89, http://dx.doi.org/10.1007/s10751-008-9893-4

P-17: D. Naidoo, H. P. Gunnlaugsson, K. Bharuth-Ram, V. V. Naicker, G. Weyer, R. Sielemann, R. Mantovan, M. Fanciulli, the ISOLDE Collaboration, 57Fe Mössbauer Investigations in P-Type Silicon Germanium Single Crystals. Hyp. Int. 188 (2009) 11-17, http://dx.doi.org/10.1007/s10751-008-9880-9

P-16: H. P. Gunnlaugsson, C. Bender Koch, K. Bharuth-Ram, M. Dietrich, Ö. Helgason, M. B. Madsen, R. Mantovan, D. Naidoo, S. Steinthorsson, L. Vistisen, G. Weyer, Disordered chromite in the Martian meteorite Allan Hills 84001, Hyperfine Interact. 186 (2008) 9–14, http://dx.doi.org/10.1007/s10751-008-9834-2

P-15: K. Bharuth-Ram, H. P. Gunnlaugsson, R. Mantovan, V. V. Naicker, D. Naidoo, R. Sielemann, G. Weyer, Th. Aigne, ISOLDE Collaboration, Mössbauer study of Fe in 3C-SiC following 57Mn implantation, Hyperfine Interact. 184 (2008) 207–211, http://dx.doi.org/10.1007/s10751-008-9791-9

P-14: K. Bharuth-Ram, V. V. Naicker, D. Naidoo, H. P. Gunnlaugsson, R. Mantovan, G. Weyer, M. Dietrich, J. E. Butler, ISOLDE Collaboration, Mössbauer study of 57Fe in CVD diamond following 57Mn implantation, Hyperfine Interact. 179 (2007) 17–22, http://dx.doi.org/10.1007/s10751-008-9669-x

P-13: G. Weyer, H.P. Gunnlaugsson, R. Mantovan, D. Naidoo, K. Bharuth-Ram, M. Fanciulli, T. Agne. Defect-related local magnetism at dilute Fe atoms in ion-implanted ZnO. J. Appl. Phys. 102 (2007) 113915, http://dx.doi.org/10.1063/1.2821290

P-12: H. P. Gunnlaugsson, K. Bharuth-Ram, M. Dietrich, M. Fanciulli, H. Fynbo, G. Weyer, Identification of substitutional and interstitial Fe in 6H-SiC, Hyp. Int.169 (2006) 1318-1323, http://dx.doi.org/10.1007/978-3-540-49853-7_103

P-11: H. P. Gunnlaugsson, K. Bharuth-Ram, M. Dietrich, M. Fanciulli, H. Fynbo, G. Weyer, Formation of Fei-B pairs in silicon at high temperatures, Hyp. Int.169 (2006) 1315-1318, http://dx.doi.org/10.1007/s10751-006-9444-9

P-10:  G. Weyer, H.P. Gunnlaugsson, K. Bharuth-Ram, M. Dietrich, R. Mantovan, V. Naicker, D. Naidoo, R. Sielemann, Acceleration of diffusional jumps of interstitial Fe with increasing Ge concentration in Si1-xGex alloys observed by Mössbauer spectroscopy, Hyp. Int., 158 (2005) 417-421, http://dx.doi.org/10.1007/3-540-30924-1_68

P-9: G. Weyer, H. P. Gunnlaugsson, M. Dietrich, H. Fynbo, K. Bharuth-Ram, and the ISOLDE Collaboration, Mössbauer spectroscopy on Fe impurities in diamond, The Europ. Phys. J. – Appl. Phys., 27 (2004) 317-320, http://dx.doi.org/10.1051/epjap:2004060

P-8: H. P. Gunnlaugsson, G. Weyer, M. Dietrich, M. Fanciulli, K. Bharuth-Ram, R. Sielemann, and the ISOLDE Collaboration, Mössbauer spectroscopy on Fe impurities in germanium,  Physica B, 340-342 (2003) 537-540, http://dx.doi.org/10.1016/j.physb.2003.09.140

P-7: H. P. Gunnlaugsson, G. Weyer, N.E. Christensen, M. Dietrich, M. Fanciulli, K. Bharuth-Ram, R. Sielemann, A. Svane, and the ISOLDE Collaboration, On the kinetics of the formation of interstitial Fe-vacancy pairs at high temperatures, (2003) Physica B, 340-342 (2003) 532-536. http://dx.doi.org/10.1016/j.physb.2003.09.141

P-6: G. Weyer, H. P. Gunnlaugsson, M. Dietrich, M. Fanciulli, K. Baruth-Ram, R. Sielemann and the ISOLDE collaboration. Creation and annealing of defect structures in silicon-based semiconductors during and after implantation at 77-500 K, Nucl. Instr. Meth. B, 206 (2003) 90-94, http://dx.doi.org/10.1016/S0168-583X(03)00688-8

P-5: H. P. Gunnlaugsson, G. Weyer, M. Dietrich, the ISOLDE collaboration, M. Fanciulli, K. Bharuth-Ram and R. Sielemann, Charge state dependence of the diffusivity of interstitial Fe in silicon detected by Mössbauer spectroscopy, Appl. Phys. Lett., 80(15) (2002) 2657-2659, http://dx.doi.org/10.1063/1.1469216

P-4: H. P. Gunnlaugsson, M. Dietrich, M. Fanciulli, K. Baruth-Ram, R. Sielemann, G. Weyer and the ISOLDE collaboration. Detection of substitutional and interstitial Fe in silicon by Mössbauer Spectroscopy, Phys. Scripta, T101 (2002) 82-85, http://dx.doi.org/10.1238/Physica.Topical.101a00082

P-3: H. P. Gunnlaugsson, M. Fanciulli, M. Dietrich, K. Baruth-Ram, R. Sielemann, G. Weyer and the ISOLDE collaboration. 57Fe Mössbauer study of radiation damage in ion implanted Si, SiGe and SiSn, Nucl. Inst. Meth. B, 186(1-4) (2002) 55-60, http://dx.doi.org/10.1016/S0168-583X(01)00858-8

P-2: H. P. Gunnlaugsson, M. Dietrich, M. Fanciulli, K. Baruth-Ram, R. Sielemann, G. Weyer and the ISOLDE collaboration. Detection of diffusional jumps of interstitial Fe in silicon by Mössbauer Spectroscopy, Physica B, 308-310 (2001) 418-420, http://dx.doi.org/10.1016/S0921-4526(01)00767-0

P-1: G. Weyer, A. Burchard, M. Faciulli, V. N. Dedoseyev, H. P. Gunnlaugsson, V. I. Mishin, R. Sielemann, The ISOLDE Collaboration, The electronic configuration of substitutional Fe in silicon, Phys. B, 273-274 (1999) 363-366, http://dx.doi.org/10.1016/S0921-4526(99)00478-0

Papers/ext. abstracts in non-refereed journals.

N-1: H. P. Gunnlaugsson, G. Weyer, M. Dietrich, The ISOLDE Collaboration, V. N. Fedoseyev, V. I. Mishin, R. Sielemann, M. Fanciulli, High Temperature Configurations of Fe in Si, Proceedings of the Second ENDEASD Workshop (Ed. C. L. Clays), Kista-Stockholm, Sweeden, June 27-29 (2000) 28-36.

Thesis production

T-8: D. Zyabkin. Ph.D. Thesis for Dr.-Ing.: Defect Complexes Interplay and its Influence on the Hyperfine Structure of Hydrogenated TiO2 (2020)

T-7: I. Solozabal. Ph.D. Thesis for Philosophiae Doctor degree in Physics:  Influence of Microstructural Defects on the Martensitic Transformation and on the Magnetic Properties of Ni-based Heusler Alloys (2019)

T-6: H. Masenda. Ph.D. Thesis for Philosophiae Doctor degree in Physics: Are Fe and Co implantation ZnO and III-nitride semiconductors magnetic? (2014)

T-5: T. E. Mølholt. Ph.D. Thesis for Philosophiae Doctor degree in Physics: Paramagnetism in ion-implanted oxides (2012) ISBN: 978-9935-9069-5-3

T-4: W. B. Dlamini. MSc Dissertation in Physics: 57Fe Mössbauer studies of 57Mn* implanted III-V semiconductors InP and InAs (2011)

T-3: H. Masenda. MSc Dissertation in Physics: ⁵⁷Fe Mössbauer investigations in GaAs and GaP following implantation of ⁵⁷Mn* (2010)

T-2: D. Naidoo. Ph.D. Thesis for Philosophiae Doctor degree in Physics: Fe Mössbauer investigations in diamond, SiGe and Ge single crystals (2006)

T-1: R. Mantovan. Ph.D. Thesis for Philosophiae Doctor degree in Physics: Mössbauer spectroscopy investigation of materials for non-volatile memory devices (2006)

Papers/ext. abstracts in non-refereed journals.

N-1: H. P. Gunnlaugsson, G. Weyer, M. Dietrich, The ISOLDE Collaboration, V. N. Fedoseyev, V. I. Mishin, R. Sielemann, M. Fanciulli, High Temperature Configurations of Fe in Si, Proceedings of the Second ENDEASD Workshop (Ed. C. L. Clays), Kista-Stockholm, Sweeden, June 27-29 (2000) 28-36.

Abstracts or poster presentations (without publication)

U-6: H. P. Gunnlaugsson, T. E. Mølholt, R. Mantovan, H. Masenda, D. Naidoo, W. B. Dlamini, R. Sielemann, K. Bharuth-Ram, G. Weyer, K. Johnston, G. Langouche, S. Ólafsson, H. P. Gíslason, Y. Kobayashi, M. Fanciulli, ISOLDE Collaboration, Paramagnetism in Mn/Fe implanted ZnO, Poster presented at the 3rd HFI/NQI 2010, CERN, Switzerland

U-5: R. Mantovan, H. P. Gunnlaugsson, K. Bharuth-Ram, M. Fanciulli, K. Johnston, G. Langouche, D. Naidoo, S. Ólafsson, R. Sielemann, G. Weyer, and the ISOLDE Collaboration, Observation of long lived Fe3+ paramagnetic states in ZnO following the implantation with non-3d elements, Poster presented at the 3rd HFI/NQI 2010, CERN, Switzerland

U-4: T. E. Mølholt, R. Mantovan, H. P. Gunnlaugsson, K. Bharuth Ram, M. Fanciulli, K. Johnston, Y. Kobayashi, G. Langouche, H. Masenda, D. Naidoo, S. Ólafsson, R. Sielemann, A. Svane, and G. Weyer, Lattice Location and Diffusion of Interstitial Fe in MgO, Poster presented at the 3rd HFI/NQI 2010, CERN, Switzerland

U-3: T. E. Mølholt, R. Mantovan, H. P. Gunnlaugsson, K. Bharuth-Ram, M. Fanciulli, K. Johnston6, Y. Kobayashi, G. Langouche, H. Masenda, D. Naidoo, S. Ólafsson, R. Sielemann, A. Svane, G. Weyer, H. P. Gíslason, Lattice Location and Diffusion of Interstitial Fe in MgO, Poster presented at the 3rd HFI/NQI 2010, CERN, Switzerland

U-2: H. P. Gunnlaugsson, K. Bharuth-Ram, M. Dietrich, M. Fanciulli, R. Sielemann, G. Weyer and the ISOLDE Collaboration, Mössbauer spectroscopy in diamond, Si and Ge following 57Mn implantation, Poster presented at the Seeheim conference 2002.

U-1: G. Weyer, M. Dietrich, V. N. Dedoseyev, H. P. Gunnlaugsson, V. I. Mishin, R. Sielemann, and the ISOLDE Collaboration, Creation of 57Fe point defects in silicon by recoil and electronic effects in the nuclear decay of ion implanted 57Mn isotopes. Poster presented at RNB-2000.

Newspaper/popular articles

A-2: IS359 team, Acceleration of diffusional jumps of interstitial Fe with increasing Ge concentration in Si1-xGex alloys observed by Mössbauer spectroscopy, ISOLDE Newsletter, autumn 2004.

A-1: IS359 team, 57Fe Mössbauer spectroscopy on iron impurities in semiconductors utilizing 57Mn, ISOLDE Newsletter, winter 2002.

Publications