Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-09-06
Phys. Rev. B 71, 140404(R) (2005)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 2 figures
Scientific paper
10.1103/PhysRevB.71.140404
In order to examine the mysterious ordered phase of NpO2 from a microscopic viewpoint, we investigate an f-electron model on an fcc lattice constructed based on a j-j coupling scheme. First, an effective model with multipole interactions is derived in the strong-coupling limit. Numerical analysis of the model clearly indicates that the interactions for \Gamma_{4u} and \Gamma_{5u} moments are relevant to the ground state. Then, by applying mean-field theory to the simplified model including only such interactions, we conclude that longitudinal triple-q \Gamma_{5u} octupole order is realized in NpO2 through the combined effects of multipole interactions and anisotropy of the \Gamma_{5u} moment.
Hotta Takashi
Kubo Katsunori
No associations
LandOfFree
Microscopic theory of multipole ordering in NpO2 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 Microscopic theory of multipole ordering in NpO2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microscopic theory of multipole ordering in NpO2 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-374771