Lifting spin degeneracy in rhombohedral trilayer graphene for high magnetoresistance applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00642491" target="_blank" >RIV/68378271:_____/25:00642491 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1021/acs.jpclett.5c02712" target="_blank" >https://doi.org/10.1021/acs.jpclett.5c02712</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.5c02712" target="_blank" >10.1021/acs.jpclett.5c02712</a>
Alternative languages
Result language
angličtina
Original language name
Lifting spin degeneracy in rhombohedral trilayer graphene for high magnetoresistance applications
Original language description
Many exotic properties in rhombohedral (or ABCstacked) multilayer graphene have recently been reported experimentally. In this Letter, we first reveal the underlying mechanism of spin degeneracy lifting in rhombohedral trilayer graphene. Then, we propose a design concept for all-rhombohedral graphene-based magnetic tunnel junctions (MTJs) by utilizing pristine, back-gated, and top-gated ABCstacked trilayer graphene, which exhibit semimetallic (conducting), semiconducting (insulating), and half-metallic (ferromagnetic) behavior, respectively. This enables the realization of an “all-in-one” magnetic tunnel junction based entirely on trilayer graphene. This design enables voltage-controlled spintronics (lower power than conventional MTJs) with perfect interfacial matching and subnanometer thickness uniformity across 4-in. wafers. Using first-principles calculations and the nonequilibrium Green’s function, we comprehensively study electronic structures and transport properties of these all-graphene MTJs. Furthermore, we demonstrate that their characteristics can be tuned via a perpendicular electric field and electron doping. Our findings offer a new concept for the development of fully graphene-based spintronic devices utilizing the three distinct electronic phases of rhombohedral trilayer graphene.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
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
Journal of Physical Chemistry Letters
ISSN
1948-7185
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
46
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
11933-11938
UT code for WoS article
001610026900001
EID of the result in the Scopus database
2-s2.0-105022408864