| Literature DB >> 22243021 |
K-T Ko1, Kyoo Kim, Sung Baek Kim, H-D Kim, J-Y Kim, B I Min, J-H Park, F-H Chang, H-J Lin, A Tanaka, S-W Cheong.
Abstract
We investigated the magnetic nature of Fe(1/4)TaS2 using x-ray absorption spectroscopy, photoemission spectroscopy, and first principles band calculations. The results show a large unquenched orbital magnetic moment (∼1.0 μ(B)/Fe) at intercalated Fe sites, resulting in a gigantic magnetic anisotropy (H(A)≃60 T). The magnetic coupling is well understood in terms of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, suggesting a novel RKKY ferromagnet with Ising-type spin states. We also found that this indirect exchange coupling between the neighboring Fe spins is ferromagnetic and maximized at the Fe-Fe distance of 2×2 superstructure.Entities:
Year: 2011 PMID： 22243021 DOI： 10.1103/PhysRevLett.107.247201
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161