Barium vanadium silicate BaVSi2O7: A t2g counterpart of the Han purple compound

A. Vasiliev,1 O. Volkova,1 E. Zvereva,1 M. Isobe,2 Y. Ueda,2 S. Yoshii,3 H. Nojiri,3 V. Mazurenko,4 M. Valentyuk,4,5 V. Anisimov,4,6 I. Solovyev,4,7 R. Klingeler,8 and B. Buchner9 1Low Temperature Physics and Superconductivity Department, Lomonosov Moscow State University, 119991 Moscow, Russia 2Materials Design and Characterization Laboratory, Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan 3Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan 4Theoretical Physics and Applied Mathematics Department, Ural Federal University, 620002 Ekaterinburg, Russia 5Institute for Theoretical Physics, University of Hamburg, 20355 Hamburg, Germany 6Institute of Metal Physics, Russian Academy of Sciences, 620990 Ekaterinburg, Russia 7Computational Materials Science Unit, National Institute for Materials Science, Tsukuba 305-0047, Japan 8Kirchoff Institute for Physics, Heidelberg University, 69120 Heidelberg, Germany 9Leibniz Institute for Solid State and Materials Research, IFW Dresden, 01171 Dresden, Germany (Received 11 October 2012; revised manuscript received 25 March 2013; published 11 April 2013)