Asset Details
Do you wish to reserve the book?
Coherent Oscillations in a SrRuOsub.3/BiFeOsub.3 Superlattice
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Coherent Oscillations in a SrRuOsub.3/BiFeOsub.3 Superlattice
Do you wish to request the book?
Coherent Oscillations in a SrRuOsub.3/BiFeOsub.3 Superlattice
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Coherent Oscillations in a SrRuOsub.3/BiFeOsub.3 Superlattice
2024
Overview
We investigated the ultrafast dynamics of a SrRuO[sub.3]/BiFeO[sub.3] superlattice grown on a SrTiO[sub.3] substrate using a near infrared pump–probe technique at various temperatures. The superlattice exhibits a ferromagnetic order inherited from the SrRuO[sub.3] layer. The pump-induced changes in the reflectivity reveal periodic oscillations. We found that the oscillation frequency can be well explained by zone-folded acoustic phonon oscillations, whose dispersion depends on the sound velocity, density, and thickness within the supercell of each constituent layer. It is found that the observed oscillation frequency corresponds to the A[sub.1] mode, which suggests that oscillations are excited due to pump-induced expansion of the SrRuO[sub.3] layer that absorbs the pump photon. Temperature-dependent measurements reveal significant suppression of the oscillation amplitude in the ferromagnetic state. The suppressed amplitude is proportional to the square of the magnetization, M(T)[sup.2]. This phenomenon can be attributed to a strong magnetostriction effect of SrRuO[sub.3] that suppresses lattice expansion upon pumping.
Publisher
MDPI AG
Subject
