Ultrafast Spin Dynamics in 2D Fully Compensated Ferrimagnets: A Time-Dependent Ab Initio Study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10504530" target="_blank" >RIV/00216208:11310/25:10504530 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=IWJoPdXcFs" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=IWJoPdXcFs</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.5c02874" target="_blank" >10.1021/acs.jpclett.5c02874</a>
Alternative languages
Result language
angličtina
Original language name
Ultrafast Spin Dynamics in 2D Fully Compensated Ferrimagnets: A Time-Dependent Ab Initio Study
Original language description
Fully compensated ferrimagnets (CFiMs) represent a novel class of magnetic materials that combine zero net magnetization with strong spin polarization, offering considerable potential for spintronic applications. Here, we employ real-time time-dependent density functional theory (rt-TDDFT) to investigate ultrafast laser-induced spin dynamics in a two-dimensional (2D) Janus NiICl bilayer. The broken inversion symmetry gives rise to an asymmetric interlayer demagnetization process, leading to a transient net magnetization in this system within 50 fs. This phenomenon is attributed to the asymmetric charge accumulation and interlayered optically induced spin transfer (OISTR) between the two Ni magnetic sublattices, facilitated by the intrinsic structural and electronic asymmetry of the Janus configurations. The asymmetric interlayer interaction effectively leads to a transient ferrimagnetic state. Our work reveals the microscopic mechanism of the ultrafast spin dynamics of 2D CFiMs induced by lasers in ultrafast spintronics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EH22_010%2F0008820" target="_blank" >EH22_010/0008820: MSCA Fellowships CZ - Charles University 3</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry Letters
ISSN
1948-7185
e-ISSN
1948-7185
Volume of the periodical
16
Issue of the periodical within the volume
43
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
11128-11133
UT code for WoS article
001596000000001
EID of the result in the Scopus database
2-s2.0-105019111788