2008/11/30 by Sergey Ganichev, S. D. Ganichev, S. A. Tarasenko +13 · 68 citations
Engineering · Physics and Astronomy · #Atomic physics #Condensed matter physics #Doping #Electric current #Electron #Ion #Magnetic field #Magnetic semiconductor #Materials science #Optoelectronics #Physics #Quantum and electron transport phenomena #Semiconductor #Semiconductor Quantum Structures and Devices #Semiconductor materials and devices #Spin (aerodynamics) #Spin Hall effect #Spin polarization #Terahertz radiation #Zeeman effect #Zero field splitting #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.102.156602
published in Physical Review Letters 102(15), 156602 (American Physical Society) · 6 pages, 4 figures
arxiv created 2009/03/02 · openalex publication_date 2009/04/16 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study zero-bias spin separation in (Cd,Mn)Te/(Cd,Mg)Te diluted magnetic semiconductor structures. The spin current generated by electron gas heating under terahertz radiation is converted into a net electric current by applying an external magnetic field. The experiments show that the spin polarization of the magnetic ion system enhances drastically the conversion process due to giant Zeeman splitting of the conduction band and spin-dependent electron scattering on localized Mn(2+) ions.