Magnetotransport in Pulsed Laser Deposited Manganese Doped Lead Sulfide Films

POSTER

Abstract

Diluted magnetic semiconductors (DMS) have been proposed as promising candidates for spintronic applications. Most research in this field has been confined to III-V and II-VI semiconductor system. There are reports on IV-VI semiconductors, however reports on lead sulfide (PbS) based DMS is limited. We study the transport, magnetic and structural properties of manganese doped lead sulfide (Mn:PbS) films produced by pulsed laser deposition (PLD). The films are found to show hopping transport at low tempeature. Low temperature magnetoresistance (MR) studies show that the sign of MR can be changed by application of gate voltage. The magnetic properties of the films were also studied which showed ferromagnetic behavior at room temperature.

Authors

  • Gaurab Rimal

    • University of Wyoming
    • Department of Physics & Astronomy, University of Wyoming
    • Department of Physics \& Astronomy, University of Wyoming
    • University of wyoming

  • Keshab Sapkota

    • Department of Physics \& Astronomy, University of Wyoming

  • Artur Maksymov

    • Advanced Materials Research Institute, University of New Orleans

  • Leonard Spinu

    • Advanced Materials Research Institute, University of New Orleans

  • Wenyong Wang

    • Department of Physics \& Astronomy, University of Wyoming

  • Jinke Tang

    • Department of Physics \& Astronomy, University of Wyoming