Electronic structure of Sr0.8-y La0.2+y Ti0.8 Cr0.2 O3 studied by photoemission spectroscopy and first-principles band structure calculations

H. Iwasawa,1,* S. Kaneyoshi,1 K. Kurahashi,1 T. Saitoh,1,† I. Hase,2 T. Katsufuji,3 K. Shimada,4 H. Namatame,4 and M. Taniguchi4,5 1Department of Applied Physics, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan 2National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan 3Department of Physics, Waseda University, Tokyo 169-8555, Japan 4Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan 5Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan Received 12 May 2009; revised manuscript received 1 July 2009; published 24 September 2009