Pomeranchuk instabilities
WebMay 21, 2024 · We develop a method to detect instabilities leading to nematic phases in strongly coupled metallic systems. We do so by adapting the well-known Pomeranchuk … WebAug 1, 2014 · We approach the instabilities from the ordered ferromagnetic phase. We find “quantum multi-criticality” as approach to the ferromagnetic instability drives instability in …
Pomeranchuk instabilities
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WebWe address at the mean field level the emergence of a Pomeranchuk instability in a uniform Fermi liquid with central particle-particle interactions. We find that Pomeranchuk instabilities with all symmetries except l = 1 can take place if the interaction is repulsive and has a finite range r0 of the order of the inter-particle distance. WebWe develop a method to detect instabilities leading to nematic phases in strongly coupled metallic systems. We do so by adapting the well-known Pomeranchuk technique to a …
The Pomeranchuk instability is an instability in the shape of the Fermi surface of a material with interacting fermions, causing Landau’s Fermi liquid theory to break down. It occurs when a Landau parameter in Fermi liquid theory has a sufficiently negative value, causing deformations of the Fermi surface to be … See more In a 3D isotropic Fermi liquid, consider small density fluctuations $${\textstyle \delta n_{k}=\Theta ( k -p_{\mathrm {F} })-\Theta ( k -p_{\mathrm {F} }'({\hat {k}}))}$$ around the Fermi momentum $${\textstyle p_{\mathrm {F} }}$$, … See more • Kohn anomaly • Pomeranchuk's theorem • Lindhard theory See more The Pomeranchuk instability manifests in the dispersion relation for the zeroth sound, which describes how the localized fluctuations of the momentum density function $${\textstyle \delta n_{k}}$$ propagate through space and time. Just as the … See more WebMain idea of my talk is to address the instabilities in l=1 channel for spin symmetric and spin antisymmetric sectors based on the conservation laws and continuity equation. • l=1 spin …
http://www.physics.fudan.edu.cn/tps/people/cqwu/publications/2006-2010/2010/2010-PhysRevB.82.245106.pdf WebCompetition between Pomeranchuk instabilities in the nematic and hexatic channels in a two-dimensional spinless Fermi fluid Daniel G. Barci,1 Marta Trobo,2,3 Victoria Ferna´ndez,2,3 and Luis E. Oxman4 1Departamento de F´ısica Teorica Universidade do Estado do Rio de Janeiro. Rua S˜ao Francisco Xavier 524, 20550-013, Rio de Janeiro, RJ ...
WebDec 23, 2008 · We study the presence of Pomeranchuk instabilities induced by interactions on a Fermi liquid description of a graphene layer. Using a recently developed …
WebThe Landau level projection is incorporated via a modified effective electron-electron interaction and the resulting band structure is described within the Hartree-Fock approximation. We regulate the infrared divergences in the theory and probe the intrinsic tendency of the Fermi surface to deform through Pomeranchuk instabilities. portsmouth uni login moodleWebmiliar superconducting or magnetic instabilities, the order parameter which presumably develops at these transitions appears to be transparent or only weakly coupled to most … oracle change asm sys passwordWebAug 7, 2009 · We study the presence of Pomeranchuk instabilities induced by interactions on a Fermi-liquid description of a graphene layer. Using a recently developed … oracle challenger series chicagoWebMar 20, 2024 · Request PDF Limits on dynamically generated spin-orbit coupling: Absence of l=1 Pomeranchuk instabilities in metals An ordered state in the spin sector that breaks parity without breaking time ... oracle chamber in maltahttp://sedici.unlp.edu.ar/bitstream/handle/10915/100006/Fermi_surface_instabilities_at_finite_temperature.a81292f3-2805-4a1b-94b7-615f53ca5250_A.pdf-PDFA.pdf?sequence=1 oracle change agent awards 2022WebNov 29, 2016 · The Pomeranchuk instabilities in the particle-hole channel can presumably co-exist with superconductivity, whereas the gap opening instability in the particle hole channel is likely to compete with superconductivity. In the case of asymmetric Weyl-loop semi-metal the SO(2) ... oracle championsWebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. oracle change data format