Self-Masking of Spontaneous Symmetry Breaking in Layer Materials

2008/06/30 by Hiroyuki Yamase · 2 citations
Physics and Astronomy · #Anisotropy #Bilayer #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Coupling (piping) #Dispersion (optics) #Fermi surface #Geometry #Instability #Ising model #Materials science #Nuclear magnetic resonance #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spontaneous symmetry breaking #Stacking #Superconductivity #Symmetry (geometry) #Symmetry breaking #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.102.116404

published as Phys. Rev. Lett. 102, 116404 (2009) · 5 pages, 3 figures, published version

openalex publication_date 2009/03/20 · arxiv created 2009/04/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study d-wave Fermi-surface deformations (dFSD), the so-called Pomeranchuk instability, on bilayer and infinite-layer square lattices. Since the order parameter of the dFSD has Ising symmetry, there are two stacking patterns along the c axis: (+, +) and (+, -). We find that, as long as the c axis dispersion is finite at the saddle points of the in-plane band dispersion, the (+, -) stacking is usually favored independently on the details of interlayer coupling, yielding no macroscopic anisotropy. The dFSD provides unique spontaneous symmetry breaking that is self-masked in layer materials.

Citations

• Theory of electron nematic order in LaFeAsO
• Van Hove Singularity and Spontaneous Fermi Surface Symmetry Breaking in Sr3Ru2O7
• Electronic liquid-crystal phases of a doped Mott insulator
• Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors
• In-plane anisotropy of spin excitations in the normal and superconducting states of underdoped YBa₂Cu₃O_6+x
• Formation of an electronic nematic phase in interacting fermion systems

Cited by

• Generalized Stoner criterion and versatile spin ordering in two-dimensional spin-orbit coupled electron systems
• Probing thedx2−y2-wave Pomeranchuk instability by ultrasound

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