Magnetic molecules lose identity when connected to different combinations of magnetic metal electrodes in MTJ-based molecular spintronics devices (MTJMSD).


Journal

Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288

Informations de publication

Date de publication:
27 Sep 2023
Historique:
received: 14 05 2023
accepted: 14 09 2023
medline: 28 9 2023
pubmed: 28 9 2023
entrez: 27 9 2023
Statut: epublish

Résumé

Understanding the magnetic molecules' interaction with different combinations of metal electrodes is vital to advancing the molecular spintronics field. This paper describes experimental and theoretical understanding showing how paramagnetic single-molecule magnet (SMM) catalyzes long-range effects on metal electrodes and, in that process, loses its basic magnetic properties. For the first time, our Monte Carlo simulations, verified for consistency with regards to experimental studies, discuss the properties of the whole device and a generic paramagnetic molecule analog (GPMA) connected to the combinations of ferromagnet-ferromagnet, ferromagnet-paramagnet, and ferromagnet-antiferromagnet metal electrodes. We studied the magnetic moment vs. magnetic field of GPMA exchange coupled between two metal electrodes along the exposed side edge of cross junction-shaped magnetic tunnel junction (MTJ). We also studied GPMA-metal electrode interfaces' magnetic moment vs. magnetic field response. We have also found that the MTJ dimension impacted the molecule response. This study suggests that SMM spin at the MTJ exposed sides offers a unique and high-yield method of connecting molecules to virtually endless magnetic and nonmagnetic electrodes and observing unprecedented phenomena in the molecular spintronics field.

Identifiants

pubmed: 37758736
doi: 10.1038/s41598-023-42731-9
pii: 10.1038/s41598-023-42731-9
pmc: PMC10533507
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

16201

Subventions

Organisme : NASA
ID : 80NSSC19M0196
Pays : United States

Informations de copyright

© 2023. Springer Nature Limited.

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Auteurs

Eva Mutunga (E)

Mechanical Engineering, Center for Nanotechnology Research and Education (CNRE), University of the District of Columbia, 4200 Connecticut Ave. NW, Washington, DC, 20008, USA.

Christopher D'Angelo (C)

Mechanical Engineering, Center for Nanotechnology Research and Education (CNRE), University of the District of Columbia, 4200 Connecticut Ave. NW, Washington, DC, 20008, USA.

Pawan Tyagi (P)

Mechanical Engineering, Center for Nanotechnology Research and Education (CNRE), University of the District of Columbia, 4200 Connecticut Ave. NW, Washington, DC, 20008, USA. ptyagi@udc.edu.

Classifications MeSH