Invited researcher to the CEMES, Murtaza Bohra from Mahindra University, Hyderabad, INDIA will present on Wednesday, August 24 at 2:00 p.m. in the CEMES Hortensias room the following seminar :
Role of nanostructured Zn-ferrite for Spin Insulatronics
Creating exotic oxide-based spintronic devices demands exploration of new spinel having a complex crystal structure with many degrees of freedom that can be engineered to produce multifunctional properties at nano-scale. The controlled growth of nanometric spinel oxide films allows the stabilization of novel magnetic phases with properties dramatically different from bulk ones . A very interesting feature of Zn-ferrite (ZnFe2O4) is that it shows paramagnetic behavior in bulk at room temperature whereas strong magnetic ordering has been observed at nanoscale, providing a platform for various spintronic research. This would allow us to build monolithic spin-filter junctions, exchange bias structure and magnetic tunnelling junctions based on a single material homojunctions and recently developed novel spin pumping devices  using its tunable magnetic and electric transport properties while preserving crystal symmetry.
- Large room temperature magnetization in nanocrystalline zinc ferrite thin films, Bohra et al. Applied Physics Letters 88 (26), 2506 (2006).
- Spin current and spin waves at a platinum/yttrium iron garnet interface: impact of microwave power and temperature, Ovsyannikov et al. J. Phys. D: Appl. Phys. 54, 365002 (2021).
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