Proximity-Driven Non-Volatile Spin and Valley Control in a Van Der Waals Antiferromagnetic Heterostructure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933863" target="_blank" >RIV/60461373:22310/25:43933863 - isvavai.cz</a>
Result on the web
<a href="https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202515464" target="_blank" >https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202515464</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adma.202515464" target="_blank" >10.1002/adma.202515464</a>
Alternative languages
Result language
angličtina
Original language name
Proximity-Driven Non-Volatile Spin and Valley Control in a Van Der Waals Antiferromagnetic Heterostructure
Original language description
The integration of non-volatile spin and valley control in 2D quantum systems remains a pivotal challenge for spintronic and valleytronic functionalities. Here, we demonstrate persistent spin and valley polarizations in a van der Waals heterostructure comprising bulk antiferromagnetic CrPS4 and monolayer MoSe2, achieved via interfacial magnetic proximity effects. The 1L-MoSe2/bulk-CrPS4 heterostructure exhibits non-volatile hysteresis in chiral photoluminescence (PL), directly linked to the antiferromagnetic ordering of bulk-CrPS4. This helicity of PL persists at zero field, enabled by the spin-polarized charge transfer from the K valley in the MoSe2 monolayer to the conduction band of CrPS4, breaking the valley degeneracy without external stimuli. Remarkably, the PL helicity switches surprisingly at a magnetic field of similar to 0.5 T, a 17-fold smaller than the spin-flip field of similar to 8.5 T in bulk CrPS4. Our work establishes bulk antiferromagnet-based heterostructure as a robust platform for low-energy, magnetically tunable quantum devices, bridging the gap between the transient valleytronic phenomena and practical non-volatile applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
—
Continuities
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
ADVANCED MATERIALS
ISSN
0935-9648
e-ISSN
1521-4095
Volume of the periodical
38
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
"e15464"
UT code for WoS article
001649052300001
EID of the result in the Scopus database
2-s2.0-105026086580