Emetere, Moses and Sanni, Samuel Eshorame and Agarana, M. C. (2016) Virtual Observation of Femtosecond Spin Dynamics Mechanism in Graphene. In: Proceedings of the World Congress on Engineering 2016 Vol I WCE 2016, June 29 - July 1, London, U.K..
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Abstract
Abstract—The mechanism of the femtosecond spin dynamics is still not properly understood. The remodeled Bloch – Schrödinger equation was incorporated into the Hamiltonian. The mechanism of the femtosecond dynamics was investigated under three quantum states. The spin relaxation mechanism operated in a single continuous time scale (>70ps) which was in variance with knownpostulate. The transient reflectivity was measured to be within an angular range of 18.6o to 90.0o at a pulse range of 1MHz to 6.5 MHz. Beyond the pulse intensity of -2.5, the system elapsed into a quasi-equilibrium state which explains the independence of the magnetic moment on the pulse intensity. Different possibilities of the femtosecond spin dynamics were worked out for future study.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Uncontrolled Keywords: | femtosecond spin dynamics, Schrödinger, Bloch NMR, spin relaxation |
| Subjects: | Q Science > QA Mathematics T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences Faculty of Engineering, Science and Mathematics > School of Mathematics |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 14 Jun 2017 08:45 |
| Last Modified: | 14 Jun 2017 08:45 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/8192 |
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