NiSi: A New Venue for Antiferromagnetic Spintronics

October 23, 2023
Left: (a) Neutron diffraction pattern measured at 300 K. (b) Integrated intensity of the magnetic (0,0,1) peak, shows the onset of magnetism at T>700 K. Right: spin configuration of Ni ions on two non-equivalent sites inferred from the modelling of the elastic neutron data.

Scientific Achievement

High transition temperature antiferromagnetic order is observed in nickel monosilicide (NiSi) metal accompanied by non-centrosymmetric magnetic character.

Significance and Impact

The distinct magnetic order with TN>700 K and electronic hysteresis response underscore the importance of NiSi in the pursuit of antiferromagnetic spintronics.

Research Details

  • Single-crystal neutron scattering data were collected at the CORELLI spectrometer, Spallation Neutron Source, Oak Ridge National Laboratory and triple axis spectrometer TRIAX at Missouri Research Reactor.
  • Complementary theoretical calculations using the self-interaction correction method reveals an antiferromagnetic ground state in NiSi.

“NiSi: A New Venue for Antiferromagnetic Spintronics,”
Pousali Ghosh, Jiasen Guo, Feng Ye, Thomas Heitmann, Steven Kelley, Arthur Ernst, Vitalii Dugaev, Deepak K. Singh
Advanced Materials 35, 2302120 (2023). DOI: