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Zeeman photoluminescence spectroscopy of isoelectronic beryllium pairs in silicon
Authors:T Ishikawa  T Sekiguchi  K Yoshizawa  K Naito  MLW Thewalt  KM Itoh
Institution:1. School of Fundamental Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;2. Department of Physics, Simon Fraser University, Burnaby, BC, Canada V5A 1S6;1. RIKEN, Ulmer Initiative Research Unit, 2-1 Hirosawa, Saitama, Japan;2. CERN, CH-1211 Geneva, Switzerland;3. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany;4. Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan;5. Institut für Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany;6. RIKEN, Atomic Physics Laboratory, Wako, Saitama 351-0198, Japan;7. GSI - Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany;8. Helmholtz Institut Mainz, D-55099 Mainz, Germany;1. Institute of Defence Scientists and Technologists, CFEES Complex, Brig. S.K. Majumdar Marg, Delhi 110054, India;2. Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 20083, China;1. School of Physics, Astronomy and Computational Sciences, George Mason University, USA;2. US Army Research Laboratory, USA;3. Defense Advanced Research Projects Agency, Microsystems Technology Office, USA;4. Department of Electrical and Computer Engineering, George Mason University, USA;1. Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA;2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA;3. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Abstract:Isoelectronic beryllium (Be) pair centers in silicon have been studied by photoluminescence spectroscopy under a magnetic field. The photoluminescence of the bound-exciton recombination at this center shows that the number of Zeeman split peaks is the smallest for the magnetic field applied along a 100 direction. This result provides direct evidence that the Be pairs orient themselves in 111 directions. The g values of the hole and electron in this bound exciton determined by fitting of the Zeeman diagrams support the shallow acceptor character of this isoelectronic center.
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