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Electronic transport in the Coulomb phase of the pyrochlore spin ice
Gia-Wei Chern, Saurabh Maiti, Rafael M. Fernandes +1
We investigate the transport properties of itinerant electrons interacting with a background of localized spins in a correlated paramagnetic phase of the pyrochlore lattice. We fin…
Uniaxial stress effects on the structural and electronic properties of BaFe2As2 and CaFe2As2
Milan Tomic, Harald O. Jeschke, Rafael M. Fernandes +1
Starting from the orthorhombic magnetically ordered phase, we investigate the effects of uniaxial tensile and compressive stresses along a, b, and the diagonal a+b directions in Ba…
Suppression of superconductivity by Neel-type magnetic fluctuations in the iron pnictides
Rafael M. Fernandes, Andrew J. Millis
Motivated by recent experimental detection of Neel-type () magnetic fluctuations in some iron pnictides, we study the impact of competing and spin fluctuatio…
Two-band superconductivity in doped SrTiO films and interfaces
R. M. Fernandes, J. T. Haraldsen, P. Wölfle +1
We investigate the possibility of multi-band superconductivity in SrTiO films and interfaces using a two-dimensional two-band model. In the undoped compound, one of the bands…
Magneto-elastically coupled structural, magnetic and superconducting order parameters in BaFe(AsP)
H-. H. Kuo, James G. Analytis, J. -H. Chu +3
We measure the transport properties of mechanically strained single crystals of BaFe(AsP) over a wide range of . The Néel transition is extremely sensi…
Enhancement of by disorder in underdoped iron pnictides
R. M. Fernandes, M. G. Vavilov, A. V. Chubukov
We analyze how disorder affects the transition temperature of the superconducting state in the iron pnictides. The conventional wisdom is that should rapidl…