Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy2ScN@C80 on Metals and Insulators

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Abstract

Magnetic hysteresis is demonstrated for monolayers of the single-molecule magnet (SMM) Dy2ScN@C80 deposited on Au(111), Ag(100), and MgO|Ag(100) surfaces by vacuum sublimation. The topography and electronic structure of Dy2ScN@C80 adsorbed on Au(111) were studied by STM. X-ray magnetic CD studies show that the Dy2ScN@C80 monolayers exhibit similarly broad magnetic hysteresis independent on the substrate used, but the orientation of the Dy2ScN cluster depends strongly on the surface. DFT calculations show that the extent of the electronic interaction of the fullerene molecules with the surface is increasing dramatically from MgO to Au(111) and Ag(100). However, the charge redistribution at the fullerene-surface interface is fully absorbed by the carbon cage, leaving the state of the endohedral cluster intact. This Faraday cage effect of the fullerene preserves the magnetic bistability of fullerene-SMMs on conducting substrates and facilitates their application in molecular spintronics.

Detaljer

Författare
  • Denis S. Krylov
  • Sebastian Schimmel
  • Vasilii Dubrovin
  • Fupin Liu
  • T. T.Nhung Nguyen
  • Lukas Spree
  • Chia Hsiang Chen
  • Georgios Velkos
  • Claudiu Bulbucan
  • Rasmus Westerström
  • Michał Studniarek
  • Jan Dreiser
  • Christian Hess
  • Bernd Büchner
  • Stanislav M. Avdoshenko
  • Alexey A. Popov
Enheter & grupper
Externa organisationer
  • Leibniz Institute for Solid State and Materials Research
  • Institute for Basic Science, Korea
  • Kaohsiung Medical University
  • Paul Scherrer Institute
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Materialkemi

Nyckelord

Originalspråkengelska
Sidor (från-till)5756-5764
Antal sidor9
TidskriftAngewandte Chemie - International Edition
Volym59
Utgåva nummer14
Tidigt onlinedatum2020
StatusPublished - 2020 mar 27
PublikationskategoriForskning
Peer review utfördJa