Uniaxial pressure effect on structural and magnetic phase transitions in NaFeAs and its comparison with as-grown and annealed BaFe${}_2$As${}_2$

Abstract

We use neutron scattering to study the effect of uniaxial pressure on the tetragonal-to-orthorhombic structural ($T_s$) and paramagnetic-to-antiferromagnetic ($T_N$) phase transitions in NaFeAs and compare the outcome with similar measurements on as-grown and annealed BaFe${}_2$As${}_2$. In previous work on as-grown BaFe${}_2$As${}_2$, uniaxial pressure necessary to detwin the sample was found to induce a significant increase in zero pressure $T_N$ and $T_s$. However, we find that similar uniaxial pressure used to detwin NaFeAs and annealed BaFe${}_2$As${}_2$ has a very small effect on their $T_N$ and $T_s$.Since transport measurements on these samples still reveal resistivity anisotropy above $T_N$ and $T_s$, we conclude that such anisotropy cannot be due to uniaxial strain induced $T_N$ and $T_s$ shifts, but must arise from intrinsic electronic anisotropy in these materials.

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Cited by in corpus (25)

• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Nematic spin correlations in the tetragonal state of uniaxial strained BaFe2-xNixAs2
• Visualization of Electron Nematicity and Unidirectional Antiferroic Fluctuations at High Temperatures in NaFeAs
• Magnetic interactions in iron superconductors: A review
• Impact of Uniaxial Pressure on Structural and Magnetic Phase Transitions in Electron-Doped Iron Pnictides
• In-plane spin excitation anisotropy in the paramagnetic phase of NaFeAs
• Spin-orbital interplay and topology in the nematic phase of iron pnictides
• Anisotropic neutron spin resonance in underdoped superconducting NaFe1-xCoxAs
• Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFe${}_{2-x}{T}_x$As${}_2$ ($T=$Co, Ni)
• The evolution of antiferromagnetic susceptibility to uniaxial pressure in Ba(Fe{1-x}Co{x})2As2
• Phonon softening and slowing down of charge-density-wave fluctuations in BaNi${}_2$As${}_2$
• In-plane uniaxial pressure-induced out-of-plane antiferromagnetic moment and critical fluctuations in BaFe${}_2$As${}_2$
• Orbital-selective spin waves in detwinned NaFeAs
• Spin fluctuation anisotropy as a probe of orbital-selective hole-electron quasiparticle excitations in detwinned Ba(Fe1-xCox)2As2
• Simultaneous Vanishing of the Nematic Electronic State and the Structural Orthorhombicity in NaFe${}_{1-x}$Co${}_x$As Single Crystals
• Orbital selective neutron spin resonance in underdoped superconducting NaFe${}_{\text{0.985}}$Co${}_{\text{0.015}}$As
• Nature of the Antiferromagnetic and Nematic Transitions in Sr${}_{1-x}$Ba${}_x$Fe${}_{1.97}$Ni${}_{0.03}$As${}_2$
• Strain-induced spin-nematic state and nematic susceptibility arising from $2\times 2$ Fe clusters in KFe${}_{0.8}$Ag${}_{1.2}$Te${}_2$
• Neutron spin resonance as a probe of superconducting gap anisotropy in partially detwinned electron underdoped NaFe${}_{0.985}$Co${}_{0.015}$As
• Unusual suppression of a spin resonance mode with magnetic field in underdoped NaFe${}_{1-x}$Co${}_x$As: Evidence for orbital-selective pairing
• Spectral Evidence for Unidirectional Charge Density Wave in Detwinned BaNi${}_2$As${}_2$
• c-axis pressure induced antiferromagnetic order in optimally P-doped BaFe2(As0.70P0.30)2 superconductor
• Structural and magnetic properties of CoTeMoO${}_6$ revisited
• Strain-activated structural anisotropy in BaFe2As2
• Anisotropic Electronic Mobilities in the Nematic State of the Parent Phase NaFeAs