Quantum critical point and ferromagnetic semiconducting behavior in -type
Journal Article
·
· Physical Review B
- Univ. of Missouri, Columbia, MO (United States); University of Missouri
- Univ. of Missouri, Columbia, MO (United States)
- Univ. of Missouri, Columbia, MO (United States); Henan Univ., Kaifeng (China)
We highlight a method based on itinerant magnetism for finding ferromagnetic semiconductors that can be gate tuned to study quantum critical points. We demonstrate that p-type FeAs2 is an example. The complex nonparabolic band structure of this material leads to a ferromagnetic instability when doped, while at the same time allowing for a modest transport effective mass. This leads to an analogy between magnetic semiconductors and thermoelectric materials.
- Research Organization:
- Univ. of Missouri, Columbia, MO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- SC0019114
- OSTI ID:
- 1591988
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 2 Vol. 101; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electronic structure and weak itinerant magnetism in metallic
Excitations and magnetization density distribution in the dilute ferromagnetic semiconductor
: A prototype half-metallic ferromagnet
Journal Article
·
2015
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:1239755
Excitations and magnetization density distribution in the dilute ferromagnetic semiconductor
Journal Article
·
2017
· Physical Review B
·
OSTI ID:1360061
+6 more
: A prototype half-metallic ferromagnet
Journal Article
·
2015
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:1350055