Terahertz macrospin dynamics in insulating ferrimagnets

Shalaby, Mostafa; Vidal, Francois; Peccianti, Marco; Morandotti, Roberto; Enderli, Florian; Feurer, Thomas; Patterson, Bruce D. (2013). Terahertz macrospin dynamics in insulating ferrimagnets. Physical review. B - condensed matter and materials physics, 88(14), p. 140301. American Physical Society 10.1103/PhysRevB.88.140301

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics

UniBE Contributor:

Enderli, Florian and Feurer, Thomas

Subjects:

600 Technology > 620 Engineering

ISSN:

1098-0121

Publisher:

American Physical Society

Language:

English

Submitter:

Martin Frenz-Lips

Date Deposited:

04 Jul 2014 13:19

Last Modified:

11 Sep 2017 16:44

Publisher DOI:

10.1103/PhysRevB.88.140301

BORIS DOI:

10.7892/boris.52946

URI:

https://boris.unibe.ch/id/eprint/52946

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