Magnetic remanence in single atoms

@article{Donati2016MagneticRI,
  title={Magnetic remanence in single atoms},
  author={Fabio Donati and Stefano Rusponi and Sebastian Stepanow and Christian W{\"a}ckerlin and Aparajita Singha and Luca Persichetti and Romana Baltic and Katharina Diller and François Patthey and Edgar Fernandes and Jan Dreiser and Željko {\vS}ljivan{\vc}anin and Kurt Kummer and Corneliu Nistor and Pietro Gambardella and Harald Brune},
  journal={Science},
  year={2016},
  volume={352},
  pages={318 - 321}
}
Stable magnets from single atoms An important goal in molecular magnetism is to create a permanent magnet from a single atom. Metal atoms adsorbed on surfaces can develop strong magnetization in an applied field (paramagnetism). Donati et al. show that single holmium atoms adsorbed on a magnesium oxide film grown on a silver substrate show residual magnetism for temperatures up to 30 K and bistabilty that lasts for 1500 s at 10 K (see the Perspective by Khajetoorians and Heinrich). The atom… Expand
Toward single-atom memory
TLDR
Donati et al. (6) demonstrate that single holmium atoms exhibit magnetic remanence up to temperatures of 40 K, much higher than previous records of atomic-scale magnets composed of 3 to 12 atoms—a record in both size and stability for any magnet. Expand
Engineering atomic-scale magnetic fields by dysprosium single atom magnets
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TLDR
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Correlation between Electronic Configuration and Magnetic Stability in Dysprosium Single Atom Magnets.
TLDR
X-ray absorption spectroscopy is used to show that the electronic configuration of dysprosium atoms on MgO( 100) thin films can be tuned by the proximity of the metal Ag(100) substrate onto which the M gO films are grown. Expand
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Downscaling single magnetic bits to the ultimate size of individual atoms would open the possibility to maximize the magnetic storage density on a solid surface. However, realizing stable magnets ofExpand
Thermal and Magnetic-Field Stability of Holmium Single-Atom Magnets.
TLDR
The measurements constrain the possible ground state of Ho single-atom magnets to either J_{z}=7 or 8, both compatible with magnetic bistability at fields larger than 10 mT, and the transverse magnetic anisotropy energy is estimated from magnetic field and bias voltage dependent switching rates at 4.3 K. Expand
Mapping Orbital-Resolved Magnetism in Single Lanthanide Atoms.
TLDR
This work resolves the magnetism of individual orbitals in Gd and Ho single atoms on MgO/Ag(100) by combining X-ray magnetic circular dichroism with multiplet calculations and density functional theory and establishes a charge transfer mechanism leading to an unconventional singly ionized configuration. Expand
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The results suggest that substrates with low phonon density of states are beneficial for the design of spintronics devices based on single‐molecule magnets. Expand
Magnetism of 4f-atoms adsorbed on metal and graphene substrates
Abstract The electronic structure and magnetism of individual Dy atom adsorbed on the graphene/Ir(1 1 1) surface is investigated using the combination of the density functional theory with theExpand
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