English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Optical pump-probe setups are commonly used for excitation and investigationof the spin dynamics in various types of magnetic materials. However, usuallythe spatially homogeneous excitation is considered. In the present study wedescribe an approach for optical excitation of the nonuniform THz spin dynamicsand for probing its spatial distribution inside a magnetic crystal. We proposeto illuminate a crystal with laser pulses of properly adjusted polarization tobenefit from a strong optical birefringence inherent to the crystal. It resultsin an unusual behavior of the effective magnetic field generated by the pulsesdue to the inverse Faraday effect and the peculiar sign-changing dependence ofthe direct Faraday effect inside the crystal. The study is performed exemplaryfor yttrium orthoferrite crystal although the proposed approach is applicablefor various magnetic materials with optical anisotropy.

Optical excitation and probing of the antiferromagnetic modes with non-uniform in-depth distribution in birefringent antiferromagnetic crystals