Europium nitride: A novel diluted magnetic semiconductor

Abstract

Europium nitride is semiconducting and contains non-magnetic \3+, but sub-stoichiometric EuN has Eu in a mix of 2+ and 3+ charge states. We show that at \2+ ~concentrations near 15-20% EuN is ferromagnetic with a Curie temperature as high as 120 K. The \3+ ~polarization follows that of the \2+, confirming that the ferromagnetism is intrinsic to the EuN which is thus a novel diluted magnetic semiconductor. Transport measurements shed light on the likely exchange mechanisms.

5 pages

References in corpus (7)

• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• Origin of ferromagnetism in (Zn,Co)O from magnetization and spin-dependent magnetoresistance
• Near-Zero Moment Ferromagnetism in the Semiconductor SmN
• Comparison between experiment and calculated band structures for DyN and SmN
• Origin of low-temperature magnetic ordering in Ga1-xMnxN
• Optical Response of DyN
• Spatially homogeneous ferromagnetism below the enhanced Curie temperature in EuO_{1-x} thin films

Cited by in corpus (8)

• The New Nitrides: Layered, Ferroelectric, Magnetic, Metallic and Superconducting Nitrides to Boost the GaN Photonics and Electronics Eco-System
• On the ferromagnetic ground state of SmN
• Twisted phase of the orbital-dominant ferromagnet SmN in a GdN/SmN heterostructure
• 4f Conduction in the Magnetic Semiconductor NdN
• Prediction of Large Magnetic Moment Materials With Graph Neural Networks and Random Forests
• Proposed ordering of textured spin singlets in a bulk infinite layer nickelate
• Evidence of The Anomalous Fluctuating Magnetic State by Pressure Driven 4f Valence Change in EuNiGe${}_3$
• In-situ monitoring of room temperature reactions of lanthanides with nitrogen and hydrogen at low pressures