Charge induced nematicity in FeSe

Abstract

The spontaneous appearance of nematicity, a state of matter that breaks rotation but not translation symmetry, is one of the most intriguing property of the iron based superconductors (Fe SC), and has relevance for the cuprates as well. Establishing the critical electronic modes behind nematicity remains however a challenge, because their associated susceptibilities are not easily accessible by conventional probes. Here using FeSe as a model system, and symmetry resolved electronic Raman scattering as a probe, we unravel the presence of critical charge nematic fluctuations near the structural / nematic transition temperature, T${}_S\sim$ 90 K. The diverging behavior of the associated nematic susceptibility foretells the presence of a Pomeranchuk instability of the Fermi surface with d-wave symmetry. The excellent scaling between the observed nematic susceptibility and elastic modulus data demonstrates that the structural distortion is driven by this d-wave Pomeranchuk transition. Our results make a strong case for charge induced nematicity in FeSe.

5 pages, 5 figures + SI

References in corpus (18)

• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Inelastic Light Scattering From Correlated Electrons
• The Structural Phase Transition in FeSe (Fe1+dSe)
• Why Does Undoped FeSe Become A High Tc Superconductor Under Pressure?
• Orbital-driven nematicity in FeSe
• Field-induced superconducting phase of FeSe in the BCS-BEC cross-over
• Emergence of the nematic electronic state in FeSe
• Origin of the tetragonal-to-orthorhombic (nematic) phase transition in FeSe: a combined thermodynamic and NMR study
• Theoretical evidence for strong correlations and incoherent metallic state in FeSe
• Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
• Observation of two distinct $d_{xz}/d_{yz}$ band splittings in FeSe
• Magnetism, superconductivity, and spontaneous orbital order in iron-based superconductors: who comes first and why?
• The origin of nematic order in FeSe
• High temperature superconductivity (Tc onset at 34K) in the high pressure orthorhombic phase of FeSe
• Quantum oscillations and upper critical magnetic field of the iron-based superconductor FeSe
• Raman scattering as a probe of nematic correlations
• Acoustic characteristics of FeSe single crystals Acoustic characteristics of FeSe single crystals

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