Nematic fluctuations and the magneto-structural phase transition in $\mathrm{Ba}(\mathrm{F}{\mathrm{e}}_{1-\mathrm{x}}\mathrm{C}{\mathrm{o}}_{\mathrm{x}}{)}_2\mathrm{A}{\mathrm{s}}_2$

Abstract

An inelastic light (Raman) scattering study of nematicity and critical fluctuations in $\mathrm{Ba}(\mathrm{F}{\mathrm{e}}_{1-\mathrm{x}}\mathrm{C}{\mathrm{o}}_{\mathrm{x}}{)}_2\mathrm{A}{\mathrm{s}}_2$ ($0\le x\le 0.051$) is presented. It is shown that the response from fluctuations appears only in $B_{1g}$ ($x^2-y^2$) symmetry. The scattering amplitude increases towards the structural transition at $T_s$ but vanishes only below the magnetic ordering transition at $T_{\mathrm{SDW}}<T_s$, suggesting a magnetic origin of the fluctuations. The theoretical analysis explains the selection rules and the temperature dependence of the fluctuation response. These results make magnetism the favorite candidate for driving the series of transitions.%Below $T_{\mathrm{SDW}}$ the gap of the magnetically ordered phase opens up.

References in corpus (38)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Nematic order in iron superconductors - who is in the driver's seat?
• Theory of Intertwined Orders in High Temperature Superconductors
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Inelastic Light Scattering From Correlated Electrons
• Divergent nematic susceptibility in an iron arsenide superconductor
• Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
• Determination of the phase diagram of the electron doped superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
• Formation of a Nematic Fluid at High Fields in Sr3Ru2O7
• Orbital-driven nematicity in FeSe
• Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
• Enhancement of superconductivity near a nematic quantum critical point
• Spin fluctuations and superconductivity in a 3D tight-binding model for BaFe2As2
• Structural quantum criticality and superconductivity in iron-based superconductor Ba(Fe1-xCox)2As2
• Observation of incipient charge nematicity in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Pairing State with a time-reversal symmetry breaking in FeAs based superconductors
• Nematic susceptibility of hole- and electron-doped BaFe2As2 iron-based superconductors from shear modulus measurements
• Origin of Orthorhombic Transition, Magnetic Transition, and Shear Modulus Softening in Iron Pnictide Superconductors: Analysis based on the Orbital Fluctuation Theory
• Carrier relaxation, pseudogap, and superconducting gap in high-Tc cuprates: A Raman scattering study
• Alternative route to charge density wave formation in multiband systems
• Band and momentum dependent electron dynamics in superconducting $\mathrm{Ba}(\mathrm{F}{\mathrm{e}}_{1-\mathrm{x}}\mathrm{C}{\mathrm{o}}_{\mathrm{x}}{)}_2\mathrm{A}{\mathrm{s}}_2$ as seen via electronic Raman scattering
• Doping dependence of the lattice dynamics in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ studied by Raman spectroscopy
• Dynamical Properties of Charged Stripes in La_{2-x}Sr_xCuO_4
• Pinpointing Gap Minima in Ba(Fe${}_{0.94}$Co${}_{0.06}{)}_2$As${}_2$ \textit{via} Band Structure Calculations and Electronic Raman Scattering
• Charge-fluctuation contribution to the Raman response in superconducting cuprates
• Linear Response Theory for Shear Modulus $C_{66}$ and Raman Quadrupole Susceptibility: Significant Evidence for Orbital Nematic Fluctuations in Fe-Based Superconductors
• Electron interactions and charge ordering in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Nematic resonance in the Raman response of iron-based superconductors
• Manifestation of nematic degrees of freedom in the Raman response function of iron pnictides
• Collective Spin Fluctuation Mode and Raman Scattering in Superconducting Cuprates
• Impact of the Spin Density Wave Order on the Superconducting Gap of Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Self-energy effects and electron-phonon coupling in Fe-As superconductors
• Electronic polymers and soft-matter-like broken symmetries in underdoped cuprates
• Raman scattering as a probe of nematic correlations
• Spin nematic fluctuations near a spin-density-wave phase
• New insight into the physics of iron pnictides from optical and penetration depth data
• Signatures of nematic quantum critical fluctuations in the Raman spectra of lightly doped cuprates

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• Large nematic susceptibility in the double-Q $C_4$ magnetic phase of Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$
• Dynamical susceptibility of a near-critical non-conserved order parameter and B2g Raman response in Fe-based superconductors
• Fluctuations and pairing in Fe-based superconductors: Light scattering experiments
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• Theoretical insights into electronic nematic order, bond-charge orders, and plasmons in cuprate superconductors
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• Theories for charge-driven nematicity in kagome metals
• Superconducting gap and nematic resonance at the quantum critical point observed by Raman scattering in $\mathrm{BaF}{\mathrm{e}}_2({\mathrm{As}}_{1-x}{\mathrm{P}}_x{)}_2$
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• Elasto-Raman scattering: arsenic optical phonon as a probe of nematicity in BaFe${}_2$As${}_2$
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