Publication:
Fully opposite spin polarization of electron and hole bands in DyN and related band structures of GdN and HoN

Issued Date

2015-07-20

Resource Type

Article

ISSN

1550235X
10980121

DOI

10.1103/PhysRevB.92.035134

Other identifier(s)

2-s2.0-84938913182

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Physical Review B - Condensed Matter and Materials Physics. Vol.92, No.3 (2015)

Suggested Citation

Tawinan Cheiwchanchamnangij, Walter R L Lambrecht Fully opposite spin polarization of electron and hole bands in DyN and related band structures of GdN and HoN. Physical Review B - Condensed Matter and Materials Physics. Vol.92, No.3 (2015). doi:10.1103/PhysRevB.92.035134 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/36189

Research Projects

Organizational Units

Authors

Journal Issue

Thesis

Title

Fully opposite spin polarization of electron and hole bands in DyN and related band structures of GdN and HoN

Author(s)

Tawinan Cheiwchanchamnangij
 Walter R L Lambrecht

Other Contributor(s)

Case Western Reserve University
 Mahidol University

Abstract

© 2015 American Physical Society. Using quasiparticle self-consistent GW calculations, we show that DyN has an unusual nearly zero indirect gap semimetallic band structure in which the states near the valence band maximum are fully minority spin polarized at Γ while the states near the conduction band minimum (at X) have fully majority spin character. This arises due to a strong hybridization of one of the minority spin f states of dysprosium with the N-2p bands. The reason why only one of the f bands hybridizes is explained using symmetry arguments. We show that in HoN, this hybridization is already strongly reduced because of the deeper Ho-4f minority spin states.

Keyword(s)

Materials Science

Availability

URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/36189

Collections

Scopus 2011-2015