Detail publikačního výsledku

Electrical detection of magnetization switching in single-molecule magnets

ALQAHTANI, A.; HENRY, D.; HAVLÍČEK, L.; ST MARIE, L.; HRUBÝ, J.; SOJKA, A.; HALE, M.; FELSENFELD, S.; EL FATIMY, A.; MYERS-WARD, R.; GASKILL, D.; NEMEC, I.; NEUGEBAUER, P.; LIU, A.; BARBARA, P.

Originální název

Electrical detection of magnetization switching in single-molecule magnets

Anglický název

Electrical detection of magnetization switching in single-molecule magnets

Druh

Článek WoS

Originální abstrakt

Single-molecule magnets (SMMs) with chemically tailorable properties are potential building blocks for quantum computing, high-density magnetic memory, and spintronics. These applications require isolated or few molecules on substrates, but studies of SMMs have mainly focused on bulk crystals. Moreover, fabrication of SMM-based devices and electrical detection of the SMM magnetic state are still coveted milestones that have so far been achieved mainly for double-decker rare-earth phthalocyanines at temperatures below 1 K. Here we demonstrate electrical detection of magnetization switching for a modification of the archetypal SMM Mn12, up to 70 K, based on the supramolecular spin valve effect with graphene quantum dots. Notably, the exchange interaction between the molecules and the graphene, as well as the dot-mediated intermolecular interaction, can be directly extracted from the electrical response, opening the way to an effective characterization of the quantum properties of different types of SMMs in a wide temperature range.

Anglický abstrakt

Single-molecule magnets (SMMs) with chemically tailorable properties are potential building blocks for quantum computing, high-density magnetic memory, and spintronics. These applications require isolated or few molecules on substrates, but studies of SMMs have mainly focused on bulk crystals. Moreover, fabrication of SMM-based devices and electrical detection of the SMM magnetic state are still coveted milestones that have so far been achieved mainly for double-decker rare-earth phthalocyanines at temperatures below 1 K. Here we demonstrate electrical detection of magnetization switching for a modification of the archetypal SMM Mn12, up to 70 K, based on the supramolecular spin valve effect with graphene quantum dots. Notably, the exchange interaction between the molecules and the graphene, as well as the dot-mediated intermolecular interaction, can be directly extracted from the electrical response, opening the way to an effective characterization of the quantum properties of different types of SMMs in a wide temperature range.

Klíčová slova

graphene quantum dots, molecular magnetism, magnetization switching

Klíčová slova v angličtině

graphene quantum dots, molecular magnetism, magnetization switching

Autoři

ALQAHTANI, A.; HENRY, D.; HAVLÍČEK, L.; ST MARIE, L.; HRUBÝ, J.; SOJKA, A.; HALE, M.; FELSENFELD, S.; EL FATIMY, A.; MYERS-WARD, R.; GASKILL, D.; NEMEC, I.; NEUGEBAUER, P.; LIU, A.; BARBARA, P.

Rok RIV

2026

Vydáno

05.02.2026

Periodikum

CARBON

Svazek

248

Číslo

121093

Stát

Spojené státy americké

Strany počet

7

URL

https://www.sciencedirect.com/science/article/abs/pii/S0008622325011091?via%3Dihub

BibTex

@article{BUT200512,
  author="{} and  {} and Lubomír {Havlíček} and  {} and Jakub {Hrubý} and Antonín {Sojka} and  {} and  {} and Abdelouahad {El Fatimy} and  {} and  {} and Ivan {Nemec} and Petr {Neugebauer} and  {} and  {}",
  title="Electrical detection of magnetization switching in single-molecule magnets",
  journal="CARBON",
  year="2026",
  volume="248",
  number="121093",
  pages="7",
  doi="10.1016/j.carbon.2025.121093",
  issn="0008-6223",
  url="https://www.sciencedirect.com/science/article/abs/pii/S0008622325011091?via%3Dihub"
}