PAIRING SYMMETRY AND PAIRING STATE IN FERROPNICTIDES: THEORETICAL OVERVIEW

By I. Mazin, J. Schmalian. 2009

266 citations recorded by the source corpus.

Abstract We review the main ingredients for an unconventional pairing state in the ferropnictides, with particular emphasis on interband pairing due to magnetic fluctuations. Summarizing the key experimental prerequisites for such pairing, the electronic structure and nature of magnetic excitations, we discuss the properties of the s± state that emerges as a likely candidate pairing state for these materials and survey experimental evidence in favor of and against this novel state of matter.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/c93bc7cc113a6fce34adf02ae335e4e1684831a1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Condensed Matter Physics

1. A. Gurevich
2. P. Dai
3. Tao Xiang
4. D. Feng
5. Fu-Chun Zhang
6. R. Greene
7. J. Paglione
8. Xianhui Chen

In Electronic, Optical and Magnetic Materials

1. A. Gurevich
2. P. Dai
3. Tao Xiang
4. D. Feng
5. Fu-Chun Zhang
6. R. Greene
7. J. Paglione
8. Xianhui Chen

Citations in the corpus

• High-temperature superconductivity in iron-based materials (2010, background): “Magnetism The nature of magnetism in the FeSC parent compounds is a hotly debated topic, largely owing to its implications for the pairing mechanism: the electronic structure suggests that the same magnetic interactions that drive the AFM ordering also produce the pairing interaction for supercon”
• Iron-based superconductors at high magnetic fields (2011, background): “The applicability of the Eliashberg theory to FBSs is unclear because the main small parameter of this theory /EF which allows neglecting vertex corrections [21] is hardly small in semi-metallic FBSs with their small Fermi energies EF < 100 meV and high frequencies of exchange bosons ∼ EF [20].”
• Iron-based high transition temperature superconductors (2014, background): “The dxy , dxz , and dyz orbitals are the main contributor to the states near the Fermi energy EF [118,119].”
• Dynamical d -wave condensation of exciton–polaritons in a two-dimensional square-lattice potential (2011, unknown): “, and recently discovered iron-pnictide superconductor”