Externally controlled high degree of spin polarization and spin inversion in a conducting junction: Two new approaches

Scientific Reports
Moumita Patra, Santanu K Maiti

Abstract

We propose two new approaches for regulating spin polarization and spin inversion in a conducting junction within a tight-binding framework based on wave-guide theory. The system comprises a magnetic quantum ring with finite modulation in site potential is coupled to two non-magnetic electrodes. Due to close proximity an additional tunneling is established between the electrodes which regulates electronic transmission significantly. At the same time the phase associated with site potential, which can be tuned externally yields controlled transmission probabilities. Our results are valid for a wide range of parameter values which demonstrates the robustness of our proposition. We strongly believe that the proposed model can be realized in the laboratory.

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Citations

May 18, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Moumita PatraShreekantha Sil
Sep 25, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Judith Helena Ojeda Silva, Santanu K Maiti
Mar 20, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Joydeep Majhi, Santanu K Maiti
Jan 27, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Sudin Ganguly, Santanu K Maiti

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