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Equipe Défauts étendus et nano-objets

Domaines d'activité :
Microscopie électronique à transmission (HRTEM),
Spectroscopie de pertes d’énergie des électrons (EELS),
Modélisation et calcul ab initio

Chapitre d'ouvrage :

Scanning transmission electron microscopy Imaging and Analysis
Eds : Stephen J. Pennycook et Peter D. Nellist, Springer (2011)
Chapitre 5 : Energy Loss Near-Edge Structures
G. Radtke and G.A. Botton
ISBN 978-1-4419-7199-9
DOI : 10.1007/978-1-4419-7200-2

Publications récentes dans des revues avec comité de lecture

Three-dimensional atomic structure of metastable nanoclusters in doped semiconductors
M. Couillard, G. Radtke, A.P. Knights, and G.A. Botton
Physical Review Letters 107 n°18 (2011) 186104 (1-4).
DOI: 10.1103/PhysRevLett.107.186104

Origin of the different transport properties of electron and hole polarons in an ambipolar polyselenophene-based conjugated polymer*
Z. Chen, M. Bird, V. Lemaur, G Radtke, J. Cornil, M. Heeney, I. McCulloch, and H. Sirringhaus
Physical Review B 84 n°11 (2011) 115211 (1-14).
*Selected as Editors’ Suggestion
DOI : 10.1103/PhysRevB.84.115211

Al L_2,3 edge X-ray absorption spectra in III-V semiconductors: Many-body perturbation theory in comparison with experiment
W. Olovsson, I. Tanaka, T. Mizoguchi, G. Radtke, P. Puschnig, and C. Ambrosch-Draxl
Physical Review B 83 n°19 (2011) 195206 (1-8).
DOI : 10.1103/PhysRevB.83.195206

Magnetic Couplings in CsV₂O₅: A New Picture
A. Saùl and G. Radtke
Physical Review Letters 106 n°17 (2011) 177203 (1-4).
DOI : 10.1103/PhysRevLett.106.177203

Scanning transmission electron microscopy investigation of the Si(111)/AlN interface grown by metalorganic vapor phase epitaxy
G. Radtke, M. Couillard, G.A. Botton, D. Zhu and C.J. Humphreys
Applied Physics Letters 97 n°25 (2010) 251901 (1-3).
DOI : 10.1063/1.3527928

Interplay between structural, electronic and magnetic degrees of freedom in Sr₃Cr₂O₈
G. Radtke, A. Saùl, H.A. Dabkowska, G.M. Luke and G.A. Botton
Physical Review Letters 105 n°3 (2010) 036401 (1-4).
DOI : 10.1103/PhysRevLett.105.036401

Electronic structure and stability of hexagonal Ba₃Ti₂RuO₉
G. Radtke, C. Maunders, A. Saùl, S. Lazar, H.J. Withfield, J. Etheridge and G.A. Botton
Physical Review B 81 n°8 (2010) 085112 (1-10).
DOI : 10.1103/PhysRevB.81.085112

Structural and transport properties of epitaxial niobium-doped BaTiO₃ films
Y. Shao, R.A. Hughes, A. Dabkowski, G. Radtke, W.H. Gong, J.S. Preston, G.A. Botton
Applied Physics Letters 93 n°19 (2008) 192114 (1-3).
DOI : 10.1063/1.3025434

Electronic structure of the quasi-two-dimensional spin-gap system SrCu₂(BO₃)₂: Experiment and theory
G. Radtke, A. Saùl, H.A. Dabkowska, B.D. Gaulin and G.A. Botton
Physical Review B 77 n°12 (2008) 125130 (1-5).
DOI : 10.1103/PhysRevB.77.125130

Momentum-resolved energy loss near edge structure in SrCu₂(BO₃)₂
G. Radtke
Ultramicroscopy 108 n°9 (2008) 893-900.
DOI : 10.1016/j.ultramic.2008.02.006

Binary Nanoparticle Superlattices in the Semiconductor-semiconductor system : CdTe and CdSe
Z. Chen, J. Moore, G. Radtke, H. Sirringhaus and S. O’Brien
Journal of the American Chemical Society 129 n°50 (2007) 15702-15709.
DOI : 10.1021/ja076698z

Structural characterization, magnetic behavior and high-resolution EELS study of new perovskites Sr₂Ru_2−xCo_xO_6−δ (0.5<x<1.5)
A.D. Lozano-Gorrín, J.E. Greedan, P. Núñez, C. González-Silgo, G.A. Botton and G. Radtke
Journal of Solid State Chemistry 180 n°4 (2007) 1209-1217.
DOI : 10.1016/j.jssc.2007.01.019

High-resolution EELS investigation of the electronic structure of ilmenites
G. Radtke, S. Lazar and G.A. Botton
Physical review B 74 n°15 (2006) 155117 (1-8).
DOI : 10.1103/PhysRevB.74.155117

Electron inelastic scattering and anisotropy : the two-dimensional point of view
G. Radtke, G.A. Botton and J. Verbeeck
Ultramicroscopy 106 n°11-12 (2006) 1082-1090.
DOI : 10.1016/j.ultramic.2006.04.023

Probing the electronic structure of complex crystals with EELS : a study of natisites
G. Radtke and G.A. Botton
Journal of Physics : Condensed matter 18 n°15 (2006) 3629-3637.
DOI : 10.1088/0953-8984/18/15/009

Comparison of the structural quality in Ga-face and N-face polarity GaN/AlN multiple-quantum-well structures
E. Sarigiannidou, E. Monroy, N. Gogneau, G. Radtke, P. Bayle-Guillemaud, E. Bellet-Amalric, B. Daudin and J. L. Rouvière
Semiconductor science and technology 21 n°5 (2006) 612-618.
DOI : 10.1088/0268-1242/21/5/008

The role of Mn in the electronic structure of Ba₃Ti₂MnO₉
G. Radtke, C. Maunders, S. Lazar, F.M.F. de Groot, J. Etheridge and G.A. Botton
Journal of Solid State Chemistry 178 n°11 (2005) 3426-3430.
DOI : 10.1016/j.jssc.2005.08.020

N-K ELNES study of anisotropy effects in hexagonal AlN
G. Radtke, T. Epicier, P. Bayle-Guillemaud and J.C. Le Bossé
Journal of Microscopy 210 n°1 (2003) 60-65.
DOI: 10.1046/j.1365-2818.2003.01178.x

Electron spectroscopy imaging to study ELNES at a nanoscale
P. Bayle-Guillemaud, G. Radtke and M. Sennour
Journal of Microscopy 210 n°1 (2003) 66-73.
DOI : 10.1088/1742-6596/241/1/012046