Pressure-induced electronic topological transitions in the charge-density-wave material In4Se3
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2017.04.261
Abstract: Abstract High-pressure in situ angle dispersive X-ray diffraction (ADXRD) measurements were performed on the charge-density-wave (CDW) material In 4 Se 3 up to 48.8 GPa. Pressure-induced structural changes were observed at 7.0 and 34.2 GPa, respectively. Using… read more here.
Keywords: density wave; charge density; electronic topological; pressure induced ... See more keywords
Tailoring Topological Transitions of Anisotropic Polaritons by Interface Engineering in Biaxial Crystals.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c00399
Abstract: Polaritons in polar biaxial crystals with extreme anisotropy offer a promising route to manipulate nanoscale light-matter interactions. The dynamic modulation of their dispersion is of great significance for future integrated nano-optics but remains challenging. Here,… read more here.
Keywords: polaritons interface; biaxial crystals; interface engineering; topological transitions ... See more keywords
Tuneable defect-curvature coupling and topological transitions in active shells.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm01370c
Abstract: Recent experimental observations have suggested that topological defects can facilitate the creation of sharp features in developing embryos. Whereas these observations echo established knowledge about the interplay between geometry and topology in two-dimensional passive liquid… read more here.
Keywords: topology; coupling topological; curvature coupling; tuneable defect ... See more keywords
Nonlinear topological transitions over a metasurface
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.214310
Abstract: We demonstrate a self-induced topological transition and the formation of topologically protected edge states in a two-dimensional array of coupled resonant cavities placed on a Kagome lattice with saturable nonlinearity introduced in the interconnecting bonds.… read more here.
Keywords: topology; nonlinear topological; transitions metasurface; topological transitions ... See more keywords
Fractional charges in conventional sequential electron tunneling
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.245416
Abstract: The notion of fractional charges was up until now reserved for quasiparticle excitations emerging in strongly correlated quantum systems, such as Laughlin states in the fractional quantum Hall effect, Luttinger quasiparticles, or parafermions. Here, we… read more here.
Keywords: electron tunneling; sequential electron; topological transitions; charge ... See more keywords
Multiple topological transitions driven by the interplay of normal scattering and Andreev scattering
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.054515
Abstract: The effect of multiple topological transitions for electron-hole excitations is discovered in full shell proximitized semiconducting nanowires with trapped superconducting vortices, recently shown to be a promising platform for the realization of Majorana states at… read more here.
Keywords: transitions driven; multiple topological; interplay normal; topological transitions ... See more keywords
Ferromagnetism in the vicinity of Lifshitz topological transitions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.205415
Abstract: We show that the critical temperature of the ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. Significant… read more here.
Keywords: temperature; ferromagnetism vicinity; vicinity lifshitz; lifshitz topological ... See more keywords
Topological transitions in continuously deformed photonic crystals
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.085148
Abstract: We demonstrate that multiple topological transitions can occur, with high sensitivity, by continuous change of the geometry of a simple two-dimensional dielectric-frame photonic crystal consisting of circular air holes. By changing the radii of the… read more here.
Keywords: continuously deformed; transitions continuously; deformed photonic; geometry ... See more keywords
Floquet topological transitions in extended Kane-Mele models with disorder
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.054203
Abstract: In this work we use Floquet theory to theoretically study the influence of circularly polarized light on disordered two-dimensional models exhibiting topological transitions. We find circularly polarized light can induce a topological transition in extended… read more here.
Keywords: brillouin zone; mele models; extended kane; kane mele ... See more keywords
Lossless and loss-induced topological transitions of isofrequency surfaces in a biaxial gyroelectromagnetic medium
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.094404
Abstract: Topological transitions of isofrequency surfaces of a composite magnetic-semiconductor structure influenced by an external static magnetic field are studied in the long-wavelength approximation. For the lossless case, the topological transitions of isofrequency surfaces from a… read more here.
Keywords: topological transitions; transitions isofrequency; loss induced; induced topological ... See more keywords
Multicritical Fermi Surface Topological Transitions.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.207202
Abstract: A wide variety of complex phases in quantum materials are driven by electron-electron interactions, which are enhanced through density of states peaks. A well-known example occurs at van Hove singularities where the Fermi surface undergoes… read more here.
Keywords: multicritical fermi; surface; surface topological; topological transitions ... See more keywords