Magnetic switching and spin filtering in an edge-state device based on HgTe waveguides Feng Zhai, Xuanping Jin, Juan Pastrana and Junqiang Lu Eur. Phys. J. B, 89 3 (2016) 59 Published online: 02 March 2016 DOI: 10.1140/epjb/e2016-60872-5