Prediction of unconventional magnetism in doped FeSb 2
Abstract
For many decades, it has been commonly believed that all electronic states of a collinear antiferromagnet (AF) are spin-degenerate, unless the underlying crystal structure lacks centrosymmetry and has spin–orbit coupling. This has been essentially definitional for antiferromagnetism and is widely used experimentally to distinguish ferromagnets from AFs. Recently, it was demonstrated that a new class of magnets, possessing antiferromagnetic order and without net magnetization but showing a typical ferromagnetic response in many aspects, is possible. We predict that F e S b 2 , which is well known but poorly understood magnetically, is an incipient unconventional magnet of this type and can be pushed to become one by Co or Cr doping. Moreover, the calculated magnetic anisotropy is favorable for exhibiting various anomalous properties.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 14, 2021
- Source ID
- 10.1073/pnas.2108924118
Entities
People
- Igor I. Mazin
- Klaus Koepernik
- Libor Šmejkal
- Michelle D Johannes
- Rafael González-hernández
Organizations
- Czech Academy of Sciences
- European Commission
- George Mason University
- German Research Foundation
- Johannes Gutenberg University Mainz
- Leibniz Institute for Solid State and Materials Research
- Office of Naval Research
- Office of Science
- United States Naval Research Laboratory
- Universidad del Norte, Colombia