[HTML][HTML] Perspective: Ultrafast magnetism and THz spintronics

J Walowski, M Münzenberg - Journal of Applied Physics, 2016‏ - pubs.aip.org
This year the discovery of femtosecond demagnetization by laser pulses is 20 years old. For
the first time, this milestone work by Bigot and coworkers gave insight directly into the time …

Efficiency of ultrafast optically induced spin transfer in Heusler compounds

D Steil, J Walowski, F Gerhard, T Kiessling, D Ebke… - Physical Review …, 2020‏ - APS
Optically induced spin transfer (OISTR) is a pathway to control magnetization dynamics in
complex materials on femto-to attosecond timescales. The direct interaction of the laser field …

Terahertz spectral signatures of ultrafast spin transports in ferromagnetic Heusler alloy

Z **, Y Guo, Y Peng, Z Zhang, J Pang… - Advanced Physics …, 2023‏ - Wiley Online Library
Abstract Although the Co‐based Heusler compounds are predicted to be half‐metals, their
sub‐picosecond demagnetization dynamics upon laser excitation show a transition‐metal …

Photoinduced terahertz radiation and negative conductivity dynamics in Heusler alloy Co2MnSn film

S Zhang, Z **, X Liu, W Zhao, X Lin, C **g, G Ma - Optics letters, 2017‏ - opg.optica.org
We report the broadband terahertz (THz) radiation in ferromagnetic half-metallic Heusler
alloy Co 2 MnSn thin film upon the irradiation of a femtosecond laser pulse at room …

Magnetocrystalline anisotropy and its electric-field-assisted switching of Heusler-compound-based perpendicular magnetic tunnel junctions

Z Bai, L Shen, Y Cai, Q Wu, M Zeng, G Han… - New Journal of …, 2014‏ - iopscience.iop.org
Employing density functional theory combined with the non-equilibrium Greenʼs function
formalism, we systematically investigate the structural, magnetic and magnetoelectric …

Ultrafast spin dynamics of electrochemically grown heusler alloy films

MR Karim, A Adhikari, SN Panda… - The Journal of …, 2021‏ - ACS Publications
The electrochemical growth of Heusler alloy film with good morphological quality and
crystalline order using single-crystalline substrate is demonstrated. Static magneto optical …

Ultrafast demagnetization of L10 FePt and FePd ordered alloys

S Iihama, Y Sasaki, H Naganuma… - Journal of Physics D …, 2015‏ - iopscience.iop.org
The cause of the time scale for ultrafast demagnetization induced by irradiation using a fs
pulse laser remains an open issue. Spin-flip mediated by electron–phonon scattering due to …

Ultrafast magnetization dynamics in an epitaxial Heusler-alloy film close to the Curie temperature

A Bonda, L Uba, K Załęski, S Uba - Physical Review B, 2019‏ - APS
The influence of the amplitude of an external magnetic field (H) and femtosecond laser pulse
fluence (F) on ultrafast magnetization dynamics has been investigated in a ferromagnetic Ni …

Ultrafast magnetization dynamics in the half-metallic Heusler alloy

RS Malik, EK Delczeg-Czirjak, R Knut, D Thonig… - Physical Review B, 2021‏ - APS
We report on optically induced, ultrafast magnetization dynamics in the Heusler alloy Co 2
FeAl, probed by time-resolved magneto-optical Kerr effect. Experimental results are …

Ultrafast demagnetization mechanism in half-metallic Heusler alloy thin films controlled by the Fermi level

S Pan, T Seki, K Takanashi, A Barman - Physical Review B, 2020‏ - APS
The electronic band-structure controlled ultrafast demagnetization mechanism in C o 2 F ex
M n 1− x Si Heusler alloy is underpinned by systematic variation of composition. We find the …