Terahertz macrospin dynamics in insulating ferrimagnets

Shalaby, Mostafa, Vidal, Francois, Peccianti, Marco, Morandotti, Roberto, Enderli, Florian, Feurer, Thomas and Patterson, Bruce D (2013) Terahertz macrospin dynamics in insulating ferrimagnets. Physical Review B, 88 (14). 140301-1-140301-5. ISSN 1098-0121

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We investigate numerically the excitation of nonlinear magnetic interactions in a ferrite material by an energetic pump pulse of terahertz (THz) radiation. The calculations are performed by solving the coupled Maxwell and Landau-Lifshitz-Gilbert differential equations. In a time-resolved THz pump/THz probe scheme, it is demonstrated that Faraday rotation of a delayed THz probe pulse can be used to map these interactions. Our study is motivated by the ability of soft x-ray free electron lasers to perform time-resolved imaging of the magnetization process at the submicrometer and subpicosecond length and time scales. © 2013 American Physical Society.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics > QC0350 Optics. Light > QC0450 Spectroscopy
Q Science > QC Physics > QC0501 Electricity and magnetism > QC0750 Magnetism
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
Depositing User: Marco Peccianti
Date Deposited: 27 May 2014 10:06
Last Modified: 02 Jul 2019 20:03
URI: http://sro.sussex.ac.uk/id/eprint/47536

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