Transient Non-Collinear Magnetic State for All-Optical Magnetization Switching.

ABSTRACT: Resonant absorption of a photon by bound electrons in a solid can promote an electron to another orbital state or transfer it to a neighboring atomic site. Such a transition in a magnetically ordered material could affect the magnetic order. While this process is an obvious road map for optical control of magnetization, experimental demonstration of such a process remains challenging. Exciting a significant fraction of magnetic ions requires a very intense incoming light beam, as orbital resonances are often weak compared to above-band-gap excitations. In the latter case, a sizeable reduction of the magnetization occurs as the absorbed energy increases the spin temperature, masking the non-thermal optical effects. Here, using ultrafast X-ray spectroscopy, this work is able to resolve chang

SUBMITTER: Parchenko S 

PROVIDER: S-EPMC10754071 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature