Journal
PHYSICAL REVIEW B
Volume 100, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.100.054419
Keywords
-
Funding
- Building of Consortia for the Development of Human Resources in Science and Technology project, by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- JST CREST Grant [JPMJCR1812]
- JSPS KAKENHI Grant [JP18H05212, 17K05499]
- Grants-in-Aid for Scientific Research [17K05499] Funding Source: KAKEN
Ask authors/readers for more resources
We calculate transverse spin susceptibility in the linear response method based on the ground states determined in the quasiparticle self-consistent GW (QSGW) method. Then we extract spin-wave (SW) dispersions from the susceptibility. We treat bcc Fe, hcp Co, fcc Ni, and B2-type FeCo. Because of the better description of the independent-particle picture in QSGW, calculated spin stiffness constants for Fe, Co, and Ni give much better agreement with experiments in QSGW than those in the local density approximation (LDA); the stiffness for Ni in LDA is two times greater than in experiment. For Co, both acoustic and optical branches of SWs agree with experiment. As for FeCo, we have some discrepancy between the spin stiffness in QSGW and that in experiment. We may need further theoretical and experimental investigations on the discrepancy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available