THz-Scale Field-Induced Spin Dynamics in Ferrimagnetic Iron Garnets

Blank, T. G. H.; Grishunin, K. A.; Mashkovich, E. A.; Логунов, М. В.; Zvezdin, A. K.; Kimel, A. V.

doi:10.1103/physrevlett.127.037203

Cited by 23 publications

(27 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An interesting alternative route to THz-pulse detection is offered by the THz magnetic field 𝑩(𝑡). In ferro-or ferrimagnets, 𝑩 straightforwardly couples to the magnetization 𝑴 of the material by Zeeman torque (ZT) and, thus, drives ultrafast magnetization dynamics [22][23][24][25][26][27][28]. So far, ZT was used to manipulate 𝑴 with bandwidths up to 5 THz [25].…”

Section: Introductionmentioning

confidence: 99%

Ultrafast Demagnetization of Iron Induced by Optical versus Terahertz Pulses

et al. 2021

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Ultrafast Demagnetization of Iron Induced by Optical versus Terahertz Pulses

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Such effects have been recently investigated in ferrimagnetic iron garnet Tm 3 Fe 5 O 12 in the low damping limit. 70 It is, thus, reasonable to foresee experimental verification of rFDT in the nonlinear (large damping) regime as well in the near future.…”

Section: B Field-derivative Dynamicsmentioning

confidence: 95%

A perspective on nonlinearities in coherent magnetization dynamics

Yang

Mondal

et al. 2022

Applied Physics Letters

View full text Add to dashboard Cite

The recent thrust in ultrafast magnetization dynamics aims at extending spintronic functionalities to terahertz frequencies. Deterministic manipulation of magnetization at the corresponding ultrashort timescales requires minute control not only over the magnetization itself but also the reservoirs it is interacting with. Although the various intricate couplings between spins, phonons, and electrons-all of which are susceptible to ultrashort laser pulses-lead to many (often nonlinear) coupling routes, magnetization-dynamical nonlinearities have remained largely underexplored. In this Perspective, we highlight recent advances and foresee future developments in the rapidly evolving field of nonlinear magnetization dynamics. Given the elementary character of coherent excitations, we put particular emphasis on their nonlinearities. We briefly review theoretical aspects and assess excitation mechanisms to reach the nonlinear regime of magnetic excitations in a broad class of magnetic materials, such as ferromagnets, antiferromagnets, and ferrimagnets. We present an overview of the groundbreaking experiments that showcase the unique insights provided by magnetic nonlinearities. We conclude by discussing open challenges and opportunities that underpin the potential of nonlinear magnetization dynamics for the advancement of spintronics and cavity quantum electrodynamics with spin waves at terahertz frequencies.

show abstract

“…Among the rich family of compensated FIMs, [15][16][17][18][19][20][21][22][23] rareearth-transition-metal (RE-TM) binary alloys have received tre-mendous attention, in which the spins of their two inequivalent sublattices (RE and TM elements) are antiferromagnetically coupled. For this intriguing material system, many remarkable results, including ultrafast spin dynamics, 5 nanoscale skyrmions, 6 and toggled optical switching, [24][25][26] have been reported.…”

Section: Introductionmentioning

confidence: 99%