Femtosecond Spin Dynamics Mechanism In Graphenes: The Bloch NMR-Schrödinger Probe

Emetere, Moses and Nikouravan, Bijan (2014) Femtosecond Spin Dynamics Mechanism In Graphenes: The Bloch NMR-Schrödinger Probe. International Journal of Fundamental Physical Sciences (IJFPS), 4 (4). pp. 105-110. ISSN :2231-8186

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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 known postulate. 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:	Article
Uncontrolled Keywords:	femtosecond spin dynamics, Schrödinger, Bloch NMR, spin relaxation
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	25 May 2018 15:51
Last Modified:	25 May 2018 15:51
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/10835

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