Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2000-09-20
Physics
Condensed Matter
Strongly Correlated Electrons
9 pages, 9 EPS figures, submitted to PRB
Scientific paper
10.1103/PhysRevB.63.045113
The theory of impurities in excitonic insulator is investigated in the light of the recent experiments on hexaborides. First, we study the bound state around the impurity and find that the bound state emerges when ${Re}\Delta$ is positive. Second, we study the continuum state using Abrikosov-Gor'kov's approach. We find that the energy gap is reduced strongly when ${Im}\Delta=0$. Finally, we solve Bogoliubov-de Gennes equations for excitonic insulator numerically. We get the results consistent with the analytic ones. We also find that incomplete ferromagnetism appears in doped triplet excitonic insulator with impurity. We make a short qualitative discussion on the ferromagnetism of doped hexaborides using our result.
No associations
LandOfFree
Impurity-induced Ferromagnetism in Doped Triplet Excitonic Insulator 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 Impurity-induced Ferromagnetism in Doped Triplet Excitonic Insulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impurity-induced Ferromagnetism in Doped Triplet Excitonic Insulator will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-367387