Towards design and control of magnetic and electronic properties of materials
Il 25/07/2017 ore 11.30 - 12.30
Sala A - 1° Piano
Istituto dei materiali per l'elettronica ed il magnetismo
Parco area delle scienze 37/A
43124 Parma
Seminario del Dr. Julie Karel, del Monash University, Clayton, VIC 3800 Australia.
Abstract:
Many research efforts, particularly in the fields of spintronics and microelectronics, are directed towards developing methods to modify or realize new materials properties. Some effective tools for doing this include thin film growth and nanostructuring, disorder and application of electric fields; I will highlight examples of these from my own work during this talk. First, I will show that application of an electric field through a liquid electrolyte gate produces significant, non-volatile and reversible modifications in the electronic structure of transition metal oxides. More specifically, I will explain the origin of the low temperature metallicity in VO2 and WO3 thin films after liquid electrolyte gating using measurements that directly probe the electronic structure of the material. The second part of my talk will focus on tuning the magnetic properties of materials. I will first show how structural disorder was used to enhance the magnetic moment (both spin and orbital components) and spin polarization in amorphous FexSi1-x thin films, a material that is potentially relevant as a spin injector. Finally, I will show that thin films and nanodots of Mn-Ga can be fabricated with perpendicular magnetic anisotropy, suggesting potential in spin transfer torque devices.
Organizzato da:
Imem-Cnr Parma
Referente organizzativo:
Francesca Casoli
Cnr - Istituto dei materiali per l'elettronica ed il magnetismo
Parco area delle scienze 37/A
43124 Parma
francesca.casoli@imem.cnr.it
0521/269269
Modalità di accesso: ingresso libero
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