Energy bands, electronic properties, and magnetic ordering of CrB$sub 2$

Journal Article · Thu May 01 04:00:00 EDT 1975 · Phys. Rev., B, v. 11, no. 9, pp. 3463-3468

OSTI ID:4180402

Liu, S H; Kopp, L; England, W B; Myron, H W

Energy bands of CrB$sub 2$ were calculated using the Korringa--Kohn-- Rostoker method in the muffin-tin-potential approximation. The bands near the Fermi level have mostly Cr d character, and one of the bands gives rise to a very flat piece of Fermi surface perpendicular to the hexagonal axis. It is proposed that this piece of Fermi surface stabilizes a spin-density-wave state which manifests itself as antiferromagnetic ordering of the compound below 85$sup 0$K. The excess specific heat and electronic-spin susceptibility is also interpreted as due to exchange enhancement. (9 figures) (auth)

• Research Organization: Ames Lab., IA
• NSA Number: NSA-33-005923
• OSTI ID: 4180402
• Journal Information: Phys. Rev., B, v. 11, no. 9, pp. 3463-3468, Journal Name: Phys. Rev., B, v. 11, no. 9, pp. 3463-3468; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

*CHROMIUM BORIDES-- ELECTRONIC STRUCTURE
360204* --Materials--Ceramics
Cermets & Refractories-- Physical Properties
ANTIFERROMAGNETISM
BAND THEORY
FERMI LEVEL
N50130* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Properties
Structure & Phase Studies