Amusa, R. A. and Bolanle, Yisau I. (2018) CALCULATION OF SPIN - RELAXATION TIME OF AlxIn1-xSb TERNARY COMPOUNDS USING D’ YAKONOV – PEREL MECHANISM. In: Proceedings of the 1st International Conference, The Federal Polytechnic, Ilaro, 5th – 8th Nov., 2018., 5th - 8th November, The Federal Polytechnic, Ilaro.
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CORRECTION CALCULATION OF SPIN by Amusa R.A. and Bolanle Y.I..pdf Download (759kB) |
Abstract
This study was designed to investigate the spin – relaxation time of AlxIn1-xSb compounds. Spintronic materials (SM) allowed for the exploitation of electron spin to enhance electronic and have huge potential for technological applications. Information is encoded in the spin state of electron of spintronic materials and transferred with the electrons. However, the information is affected by the fact that electron states relaxation is usually characterized by Band – Gap (BG) and Spin – Orbit Splitting (SOS). It thus becomes imperative to understand and have control over spin relaxation in order to retain the information within a required operation period. Equilibrium lattice constants of AlxIn1-xSb compounds were determined from Quantum Mechanics (MQ) approach and then compared with the literature results. The results obtained from conduction band effective masses and bulk moduli for the compounds that exhibit SOS were used to determine the spin – relaxation times utilizing D’ Yakonov – Perel mechanism. The results showed that the equilibrium lattice constants were 6.3 and 6.1 Å for InSb and AlSb respectively which agreed with literature results of 6.4, 6.1 Å for InSb and AlSb respectively. The SOS of 0.67eV was obtained for all concentrations. Thus, the information encoding ability of AlxIn1-xSb decreases with increase in concentration of Aluminum (Al). Moreover, the spin – relaxation time of AlxIn1-xSb decreases with increase in Al concentration which makes it a useful material for spintronic applications.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| Depositing User: | Mr. Bolanle Yisau I. |
| Date Deposited: | 29 May 2021 14:13 |
| Last Modified: | 29 May 2021 14:13 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/1483 |
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