Physics – Condensed Matter – Materials Science
Scientific paper
2009-12-01
Physics
Condensed Matter
Materials Science
10 pages, 5 figures
Scientific paper
A new model is proposed for the strong ferromagnetism associated with partially localized orbitals in the Fe16N2 metallic system which draws substantially from models of heavy fermion metals. We demonstrated that an unusual correlation effect is brought up within the Fe-N octahedral cluster region and the effective on-site 3d-3d Coulomb interaction increases due to a substantial 3d electrons charge density difference between the clusters and its surroundings, which leads to a partially localized high spin electron configuration with a long range ferromagnetic order. First principle calculation based on LDA+U method shows that giant magnetic moment can be achieved at sufficiently large Hubbard U value. The feature of the coexistence of the localized and itinerant electron states plays a key role on the formation of the giant saturation magnetization.
Ji Nian
Liu Xiaoqi
Wang Jian-Ping
No associations
LandOfFree
Heavy Fermion-like metal alpha double prime-Fe16N2 with giant saturation magnetization does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Heavy Fermion-like metal alpha double prime-Fe16N2 with giant saturation magnetization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy Fermion-like metal alpha double prime-Fe16N2 with giant saturation magnetization will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-508040