Electric Field Effect in Diluted Magnetic Insulator Anatase Co:  TiO₂

T. Zhao^1,*,†, S. R. Shinde², S. B. Ogale^1,2,‡, H. Zheng¹, T. Venkatesan², R. Ramesh^3,§, and S. Das Sarma^4
1Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
²Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, MD 20742, USA
³Department of Physics and Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA
⁴Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA

^*Email address: tongzhao@berkeley.edu

^†Now at University of CA, Berkeley.

^‡Email address: ogale@squid.umd.edu

^§On leave from University of MD, College Park.