Effect of uniaxial pressure on the magneto-structural transitions of iron arsenide superconductors

Abstract

We study theoretically the variation of the magnetic and the structural transition temperatures of the iron arsenide superconductors with external uniaxial stress. We show that the increase of the transition temperatures reported in recent experiments is compatible with a simple magneto-elastic model in which the physical origin of this variation is linked to the fact that antiferromagnetic bonds are longer than the ferromagnetic ones in the magnetic phase. We make predictions which can be verified in order to test the relevance of this model.

3 + epsilon pages, 2 figures

References in corpus (5)

• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Magnetism in Fe-based superconductors
• Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe${}_2$As${}_2$
• Effect of tensile stress on the in-plane resistivity anisotropy in BaFe2As2
• Pressure Effects on Magnetically-Driven Electronic Nematic States in Iron-Pnictides

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• Iron-based superconductivity extended to the novel silicide LaFeSiH
• Magneto-elastically coupled structural, magnetic and superconducting order parameters in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Spin-orbital interplay and topology in the nematic phase of iron pnictides
• Uniaxial stress effects on the structural and electronic properties of BaFe2As2 and CaFe2As2
• The evolution of antiferromagnetic susceptibility to uniaxial pressure in Ba(Fe{1-x}Co{x})2As2
• Nesting Induced Large Magnetoelasticity in the Iron Arsenide Systems
• Nematic fluctuations mediated superconductivity revealed by anisotropic strain in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Elasto-Raman scattering: arsenic optical phonon as a probe of nematicity in BaFe${}_2$As${}_2$