Centre for Nanoscience
and Nanotechnology

News

Published the Oct. 24, 2017

Mapping in real space antiferromagnetic order at nanoscale

Using an artificial atom in diamond as an ultrasensitive magnetic field detector, physicists have for the first time imaged the leakage field radiated by a compound of the vast family of antiferromagnets. This observation allowed them to study the effect of an electric field on the sinusoidal modulation of the antiferromagnetic order in a multiferroic material.

Reference:

Real-space imaging of non-collinear antiferromagnetic order with a single spin magnetometer,
I. Gross, W. Akhtar, V. Garcia, L. J. Martinez, S. Chouaieb, K. Garcia, C. Carrétéro, A. Barthélémy, P. Appel, P. Maletinsky, J.-V. Kim, J. Y. Chauleau, N. Jaouen, M. Viret, M. Bibes, S. Fusil & V. Jacques
Nature (2017) / DOI : https://doi.org/10.1038/nature23656

  • Laboratoire Charles Coulomb (L2C, CNRS/Univ. Montpellier)
  • Unité mixte de physique CNRS/Thales (CNRS/Thales/UPSud/Univ. Paris Saclay)
  • Centre de nanosciences et nanotechnologies (C2N, CNRS/UPSud/Univ. Paris Saclay)
  • Service de physique de l’état condensé (SPEC, CNRS/CEA/Univ. Paris Saclay)
  • Synchrotron SOLEIL (CNRS)

Contact:

Figure: (left) An artificial atom (center NV represented by the green arrow) inserted into a diamond tip is used to map the magnetic field radiated by an antiferromagnetic material. Under radiofrequency excitation, the amplitude of the magnetic field is coded on the fluorescence intensity of the NV center illuminated by a green laser. (right) Quantitative mapping of the magnetic field produced by the sinusoidal modulation of the antiferromagnetic order in a 30 nm thick BiFeO3 film.

Attached file

Other news

Near optimal single photon sources in the solid-state

Researchers at C2N, in collaboration with Institut Néel (Grenoble, France) and University of Queensland (Australia), have fabricated single photon sources based on semiconductor quantum dots of unprecedented quality. They succeeded in combining a unique technique invented in 2008 to position a quantum dot at the center of a micropillar acting as an optical cavity and an electrical control to remove the charge noise. They demonstrated the controlled …

Controlling carbon nanotube photoluminescence using silicon microring resonators

By depositing carbon nanotubes on ring-shaped micro-resonators, researchers at C2N (CNRS / Université Paris-Sud) managed to control the light emitted by the nanotubes. This technology could be optimized for future applications in optical telecommunications or integrated circuits for microelectronics. This work was published in the journal Nanotechnology. Reference: Controlling carbon nanotube photoluminescence using silicon microring resonators, Adrien Noury, Xavier Le Roux, Laurent Vivien & …