Laser-induced ultrafast spin-transfer processes in non-linear zigzag carbon chain systems

M Barhoumi, J Liu, G Lefkidis, W Hübner - … Chemistry Chemical Physics, 2023 - pubs.rsc.org
We combine the high-level quantum chemistry theory CCSD and EOM-CCSD together with
local and global Λ processes to investigate the details of the laser-induced ultrafast spin …

Long-distance ultrafast spin transfer over a zigzag carbon chain structure

J Liu, C Li, W **, G Lefkidis, W Hübner - Physical Review Letters, 2021 - APS
Using high-level ab initio quantum theory we suggest an optically induced subpicosecond
spin-transfer scenario over 4.428 nm, a distance which is directly comparable to the actual …

Controllable spin-dynamic scenarios on zigzag carbon cross structure

J Liu, Y Zhang, C Li, W **, G Lefkidis, W Hübner - Physical Review B, 2022 - APS
We investigate the spin-dynamic properties of two carbon cross structures assembled from
two carbon chains with two Ni atoms attached. Both the global spin transfer through the long …

Investigation of the exact spin channels in laser-induced spin dynamics in Two Mononuclear Cu (II) Complexes

BC Mummaneni, S Chen, W Hübner… - Physical Chemistry …, 2024 - pubs.rsc.org
In the quest to harness the potential of nanospintronic applications, we analyze and
investigate the spin channels for the ultrafast spin dynamics in mononuclear Cu $^{+ 2} …

First-principles study of the electronic and magnetic properties of Fe, Co, and Ni dimers adsorbed on polycyclic-aromatic-hydrocarbon molecules as well as the laser …

ML **e, YT Zheng, J Liu, W **, C Li, G Lefkidis… - Physical Review B, 2021 - APS
We investigate the geometric, electronic, and magnetic properties of TM 2 (PAH) complexes
[transition metal (TM)= Fe, Co, Ni; polycyclic-aromatic hydrocarbon (PAH)= C 10 H 8, C 16 H …

Ab initio study of ultrafast laser-induced spin flip, spin-flip transfer, and spin crossover in clusters (

N Zhang, H Du, J Chang, W **, C Li, G Lefkidis… - Physical Review B, 2018 - APS
We present a fully ab initio study of the laser-induced ultrafast magnetization dynamics in
cobalt-benzene clusters Co m Bz n+/0 (m, n= 1, 2). It is found that different geometric …

Landau-Lifshitz-Bloch equation for ferrimagnetic metals

VN Gridnev - Journal of Magnetism and Magnetic Materials, 2021 - Elsevier
We present a derivation of Landau-Lifshitz-Bloch dynamical equation describing laser-
induced longitudinal magnetization relaxation in two-sublattice ferrimagnetic metal. A …

Role of compensation points in all-optical magnetization switching

VN Gridnev - Physical Review B, 2019 - APS
We study theoretically the role of compensation points in all-optical magnetization switching
(AOS) in rare-earth transition-metal ferrimagnets. We use the sd model in which localized …

Theoretical study of laser-induced ultrafast spin dynamics in small iron-benzene clusters and of related laser and magnetic-field effects

H Du, J Liu, N Zhang, J Chang, W **, C Li, G Lefkidis… - Physical Review B, 2019 - APS
Using high-level quantum chemistry calculations, we predict various ultrafast laser-induced
spin dynamics scenarios in clusters Fe m Bz n (m, n= 1, 2) based on the nonadiabatic Λ …

First-principles study of spin properties and laser-induced ultrafast spin dynamics in transition-metal oxide clusters

P Wang, M Qiu, X Lu, W **, C Li, G Lefkidis, W Hübner - Physical Review B, 2020 - APS
We present a first-principles study of spin properties of the triplet TM 3 O 3 0/+(TM= Fe, Co,
Ni) clusters and their laser-induced ultrafast spin dynamics. The differences in geometries …