Browse > Article

Electronic and Magnetic Structures of {Ca,Sr,Ba}$Fe_2As_2$ : Dynamical Mean Field Theory Approach  

Lee, Geun-Sik (Department of Chemistry, Pohang University of Science and Technology)
Shim, Ji-Hoon (Department of Chemistry, Pohang University of Science and Technology)
Publication Information
Progress in Superconductivity / v.13, no.2, 2011 , pp. 85-89 More about this Journal
Abstract
Using the density functional theory and its combination to the dynamical mean field theory (DMFT), we have studied the electronic and magnetic structures of Fe-based superconductors, $AFe_2As_2$ (A=Ca, Sr, Ba). Our results for the electronic structure agree well with existing angle resolved photoemission spectroscopy (ARPES) data. The temperature dependent magnetization has been calculated using DMFT, and the magnetic transition temperatures are reasonably consistent with the experimentally observed trend for three compounds.
Keywords
iron-based superconductor; density functional theory; dynamical mean field theory;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. Liu et al. Nature Phys. 6 (2010) 419.
2 T. Shimojima et al. Phys. Rev. Lett. 104 (2010) 057002.
3 Y. Kamihara, T. Watanabe, M. Hirano, H. Hosono, J. Am. Chem. Soc. 130 (2008) 3296.
4 J.-H. Chu, J. G. Analytis, C. Kucharczyk, I. R. Fisher, Phys. Rev. B 79 (2009) 014506.
5 H. Luetkens, et al. Nature Mater. 8 (2009) 305.
6 J. Dong, et al. EPL 83 (2008) 27006.
7 T. Yildirim, Phys. Rev. Lett. 101 (2008) 057010.
8 W. Lv, F. Kruger, P. Phillips, Phys. Rev. B 82 (2010) 045125.
9 C. H. Lee, et al. J. Phys. Soc. Jpn. 77 (2008) 083704.
10 A. I. Goldman, et al. Phys. Rev. B 78 (2008) 100506.
11 J. Zhao, et al. Phys. Rev. B 78 (2008) 140504.
12 A. Jesche, et al. Phys. Rev. B 78 (2008) 180504.
13 Q. Huang, et al. Phys. Rev. Lett. 101 (2008) 257003.
14 K. Haule, J. H. Shim, G. Kotliar, Phys. Rev. Lett. 100 (2008) 226402.
15 W. Metzner, D. Vollhardt, Phys. Rev. Lett. 62 (1989) 324
16 A. Georges et al., Rev. Mod. Phys. 68, (1996) 13
17 G. Kotliar, D. Vollhardt, Phys. Today 57(3) (2004) 53.
18 P. Blaha, K. Schwarz, G. K. H. Madsen, D. Kvasnicka, J. Luitz, In WIEN2K, an augmented plane wave + local orbitals program for calculating crystal properties; K. Schwarz, Ed.; Technische Universitat: Wien, Austria, 2001.
19 J. P. Perdew, K. Burke, M. Ernzerhof, Phys. Rev. Lett. 77 (1996) 3865.
20 Th. Pruschke, R. Bulla, Eur. Phys. J. B 44 (2005) 217.
21 V. B. Zabolotnyy et al. Nature 457 (2009) 569.
22 A. Kutepov, K. Haule, S. R. Savrasov, G. Kotliar, Phys. Rev. B 82 (2010) 045105.