| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1592482 | Solid State Communications | 2013 | 5 Pages |
Abstract
⺠We study the kz-dispersion of BaFe2As2 using low-energy angle-resolved photoemission. ⺠A saddle-point dispersion at Z was observed below EF for the first time. ⺠Specifically strong eight-fold renormalization was identified around Z saddle point. ⺠Two van Hove singularities are involved in antiferromagnetic phase transition. ⺠Saddle-point instabilities are suggested as underlying fluctuation in iron-pnictides.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Y. Nakashima, A. Ino, S. Nagato, H. Anzai, H. Iwasawa, Y. Utsumi, H. Sato, M. Arita, H. Namatame, M. Taniguchi, T. Oguchi, Y. Aiura, I. Hase, K. Kihou, C.H. Lee, A. Iyo, H. Eisaki,