A Direct Probe of Electronic Nematic Order; Symmetry Information in Scanning Tunneling Microscope Images
arXiv:cond-mat/0703036 · doi:10.1103/PhysRevB.75.233102
Abstract
An electronic nematic state spontaneously breaks a point-group symmetry of an underlying lattice. As a result, the nematic-isotropic transition accompanies a Fermi surface distortion. However, the anisotropic nature of the nematic state at a macroscopic scale can be easily wiped out when domains of different orientations of nematic order exist. We suggest that a spatial pattern of local density of states (LDOS) in the presence of a non-magnetic impurity can be a direct probe of the nematic order. We study various patterns of LDOS across the quantum phase transition between the isotropic and nematic phases. Especially the Fourier transformed local density of states (FT-LDOS), which can be deduced from scanning tunneling microscope images, represent a transparent symmetry of an electronic structure. The application of our results to the bilayer ruthenate, SrRuO is also discussed.
arXiv comment5 pages, 5 figures
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Cited by in corpus (8)
- Microscopic Route to Nematicity in Sr3Ru2O7
- Quantum criticality and the formation of a putative electronic liquid crystal in Sr3Ru2O7
- Meta-nematic transitions in a bilayer system: Application to the bilayer ruthenate
- Pomeranchuk instability: symmetry breaking and experimental signatures
- Raman scattering near a d-wave Pomeranchuk instability
- Transport signatures of spatially modulated electronic nematic phases
- Probing the d_{x2-y2}-wave Pomeranchuk instability by ultrasound
- Singular non-ordering susceptibility at a Pomeranchuk instability