Electron effective mass in Sn-doped monoclinic single crystal β-gallium oxide determined by mid-infrared optical Hall effect

[1 ]Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA

[2 ]Terahertz Materials Analysis Center, Department of Physics, Chemistry and Biology (IFM), Linköping University, SE 58183 Linköping, Sweden

[3 ]Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

[4 ]Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

[5 ]Tamura Corporation, Sayama, Saitama 350-1328, Japan

[6 ]National Institute of Information and Communications Technology, Koganei, Tokyo 184-8795, Japan

[7 ]Leibniz Institute for Polymer Research, 01069 Dresden, Germany