TY - JOUR
T1 - Magnetic resonance from the interplay of frustration and superconductivity
AU - Knolle, J.
AU - Eremin, I.
AU - Schmalian, J.
AU - Moessner, R.
PY - 2011/11/15
Y1 - 2011/11/15
N2 - Motivated by iron-based superconductors, we develop a self-consistent electronic theory for the itinerant spin excitations in the regime of coexistence of the antiferromagnetic stripe order with wave vector Q 1=(π,0) and s+- superconductivity. The onset of superconductivity leads to the appearance of a magnetic resonance near the wave vector Q2=(0,π), where magnetic order is absent. This resonance is isotropic in spin space, unlike the excitations near Q1, where the magnetic Goldstone mode resides. We discuss several features which can be observed experimentally.
AB - Motivated by iron-based superconductors, we develop a self-consistent electronic theory for the itinerant spin excitations in the regime of coexistence of the antiferromagnetic stripe order with wave vector Q 1=(π,0) and s+- superconductivity. The onset of superconductivity leads to the appearance of a magnetic resonance near the wave vector Q2=(0,π), where magnetic order is absent. This resonance is isotropic in spin space, unlike the excitations near Q1, where the magnetic Goldstone mode resides. We discuss several features which can be observed experimentally.
UR - http://www.scopus.com/inward/record.url?scp=82455179065&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.84.180510
DO - 10.1103/PhysRevB.84.180510
M3 - Article
AN - SCOPUS:82455179065
SN - 1098-0121
VL - 84
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
M1 - 180510
ER -