Hidalgo Alcalde, PedroMéndez Martín, BianchiRuiz, C.Bermudez, V.Piqueras de Noriega, JavierDieguez, E.2023-06-202023-06-202005-07-25[1] P.S. Dutta, H.L. Bhat, V. Kumar, J. Appl. Phys. 81 (1997) 5821–5870. [2] P. Hidalgo, B. Méndez, J. Piqueras, J Plaza, E Diéguez, Semicond. Sci. Technol. 13 (1998) 1431–1433. [3] P. Hidalgo, B. Méndez, J. Piqueras, J. Plaza, E. Di´eguez, J. Appl. Phys. 86 (1999) 1449–1451. [4] J.L. Plaza, P. Hidalgo, B. Méndez, J. Piqueras, J.L. Castaño, E. Diéguez, J. Crystal Growth 198/199 (1999) 379–383. [5] J.L. Plaza, P. Hidalgo, B. Méndez, J. Piqueras, E. Diéguez, Mater. Sci. Eng. B 71 (2000) 282–287. [6] J.L. Plaza, P. Hidalgo, B. Méndez, J. Piqueras, J.L. Castaño, E. Diéguez, Mater. Sci. Eng. B 81 (2001) 157–160. [7] P. Hidalgo, J.L. Plaza, B. Méndez, E. Di´eguez, J. Piqueras, J. Phys.: Condens. Matter 14 (2002) 13211–13215. [8] J.L. Plaza, P. Hidalgo, B. Méndez, J. Piqueras, E. Diéguez, J. Crystal Growth 241 (2002) 283–288. [9] H.J. Lozykowski, A.K. Alshawa, G. Ponrenke, I. Brown, MRS Proc. 301 (1993) 263. [10] D.J. Heijmink-Liesert, M. Godlewski, A. Stapor, T. Gregorkiewic, C.A.J. Ammerlaan, J. Weber, M. Moser, F. Scholz, Appl. Phys. Lett. 58 (1991) 2237–2239. [11] D. Seghier, T. Benyattou, A. Kalboussi, S. Moneger, G. Marrakchi, G. Guillot, B. Lambert, A. Guivarc’h, J. Appl. Phys. 75 (1994) 4171–4175. [12] B. Méndez, P.S. Dutta, J. Piqueras, E. Diéguez, Appl. Phys. Lett. 67 (1995) 2648–2650. [13] B. Méndez, J. Piqueras, P.S. Dutta, E. Di´eguez, Mater. Sci. Eng. B 42 (1996) 38–42. [14] D. Weler, H. Mehrer, Phil. Mag. 49 (1984) 309. [15] W.J. Jiang, Y.M. Sun, M.C. Wu, J. Appl. Phys. 77 (1995) 1725–1728. [16] P. Hidalgo, B. Méndez, P.S. Dutta, J. Piqueras, E. Diéguez, Phys. Rev. B 57 (1998) 6479–6484. [17] A. Taguchi, H. Nakagomeand, K. Takahei, J. Appl. Phys. 68 (1990) 3390–3393. [18] M.A.J. Klik, T. Gregorkiewicz, I.V. Bradley, J-P.R. Wells, Phys. Rev. Lett. 89 (2002) 227401.0921-510710.1016/j.mseb.2005.03.010https://hdl.handle.net/20.500.14352/50949© 2005 Elsevier B.V. All rights reserved. This work was supported by the EU (HPRN-CT-2001-00199) and MECD (MAT2003-00455).b-doped GaSb ingots have been grown by the Bridgman method. The defect structure and compositional homogeneity of the crystals have been investigated by cathodoluminescence and X-ray microanalysis in the scanning electron microscope. The nature of the point defects has been found to depend on the position along the growth axis. Doping with Yb has been found to reduce the luminescence intensity of GaSb and no infrared emission related to intra-ionic transitions of the Yb_(3+) ions has been detectedengCathodoluminescence study of ytterbium doped GaSbjournal articlehttp://www.sciencedirect.com/science/article/pii/S0921510705001947http://www.sciencedirect.comopen access538.9Electrical-PropertiesGallium AntimonideCrystalsEpitaxyFísica de materiales