Evolution of giant exchange bias with ferromagnetic ordering and a robust memory effect by strain engineering MoS2 in weak antiferromagnetic gating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00642151" target="_blank" >RIV/68378271:_____/25:00642151 - isvavai.cz</a>

Result on the web

<a href="https://hdl.handle.net/11104/0372076" target="_blank" >https://hdl.handle.net/11104/0372076</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D5MA00565E" target="_blank" >10.1039/D5MA00565E</a>

Result language

angličtina

Original language name

Evolution of giant exchange bias with ferromagnetic ordering and a robust memory effect by strain engineering MoS2 in weak antiferromagnetic gating

Original language description

The emergence of 2D ferromagnetism in MoS2 layers induced by an inherently non-magnetic material like NiOOH is an interesting area of research. This result is of widespread technological importance if additionally associated with magnetic exchange correlations that show promising memory effects. In this work, we show that a giant exchange bias is housed within highly strained 2D MoS2 multilayers by interfacing with the thin weakly antiferromagnetic β-NiOOH phase. The robustness and magnitude of such zero-field-cooled exchange bias emerge from the unique sublattice spin configuration of β-NiOOH, which serves as a source of surface uncompensated moments, while highly strained 2D MoS2 acts as an active pinning layer in the hybrid. The exchange coupling between the weak antiferromagnetic layer and the adjacent moment-induced ferromagnetic layer is strong enough to show a near-room temperature thermoremanent (TRM) memory effect in magnetization states, which is newly observed for 2D hybrid materials. Upon manifesting the vertical type junction, this hybrid material also shows non-volatile electrical bistable states with a low operating bias voltage (1.25 V) and high ON/OFF ratio (6 × 102), along with hysteretic magnetoresistance, which can be useful in 2D-based spintronic applications. First-principles calculations also verified such charge transfer interactions at the interface of the hybrid structure.n

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/EH22_008%2F0004596" target="_blank" >EH22_008/0004596: Sensors and Detectors for Future Information Society</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials Advances

ISSN

2633-5409

e-ISSN

2633-5409

Volume of the periodical

6

Issue of the periodical within the volume

23

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

9150-9167

UT code for WoS article

001603042800001

EID of the result in the Scopus database

2-s2.0-105022604783