Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896442830> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W2896442830 abstract "This thesis adresses the study of crystals called relativistic semi-metals, in which electrons behave like massless relativistic particles.The first historical example of such a material is graphene.In this planar arrangement of carbon atoms, electronic valence and conduction bands touch at two distincts points in the reciprocal lattice. Thus, graphene is a zero-gap semiconductor, a semi-metal.The dynamics of electrons close to the Fermi level is relativistic, described by a Dirac equation, although their velocity is a hunder times lower than the velocity of light in vacuum. Analogous semi-metallic phases have recently been identified: 3D Weyl and Dirac semimetals, as well as more exotic phases described by crossings with more than two bands. This variety of relativistic materials raises the question of their common properties. A first part of this thesis presents work related to the study of the stability of these phases, i.e. of the electronic band crossing. We have investigated this stability first by relating it to topological properties, then by evaluating the effect of disorder, such as the presence of impurities in the material. In the second part, we focus on the manifestation of the relativistic nature of these electrons in transport. In a first study, we examine the condition of existence of a finite conductivity exactly at the band crossing, due to the contribution of evanescent states. A second study concerns the anomalous transport under a magnetic field in Weyl semi-metals, as a manifestation of the chiral anomaly, a unique property of massless relativistic fermions." @default.
- W2896442830 created "2018-10-26" @default.
- W2896442830 creator A5004436687 @default.
- W2896442830 date "2018-07-12" @default.
- W2896442830 modified "2023-09-25" @default.
- W2896442830 title "Relativistic Phases in Condensed Matter" @default.
- W2896442830 hasPublicationYear "2018" @default.
- W2896442830 type Work @default.
- W2896442830 sameAs 2896442830 @default.
- W2896442830 citedByCount "0" @default.
- W2896442830 crossrefType "dissertation" @default.
- W2896442830 hasAuthorship W2896442830A5004436687 @default.
- W2896442830 hasConcept C121332964 @default.
- W2896442830 hasConcept C125469278 @default.
- W2896442830 hasConcept C147120987 @default.
- W2896442830 hasConcept C177909632 @default.
- W2896442830 hasConcept C181966813 @default.
- W2896442830 hasConcept C24890656 @default.
- W2896442830 hasConcept C26873012 @default.
- W2896442830 hasConcept C2781204021 @default.
- W2896442830 hasConcept C30080830 @default.
- W2896442830 hasConcept C40636707 @default.
- W2896442830 hasConcept C52233224 @default.
- W2896442830 hasConcept C54937798 @default.
- W2896442830 hasConcept C62520636 @default.
- W2896442830 hasConcept C79955541 @default.
- W2896442830 hasConcept C81263218 @default.
- W2896442830 hasConceptScore W2896442830C121332964 @default.
- W2896442830 hasConceptScore W2896442830C125469278 @default.
- W2896442830 hasConceptScore W2896442830C147120987 @default.
- W2896442830 hasConceptScore W2896442830C177909632 @default.
- W2896442830 hasConceptScore W2896442830C181966813 @default.
- W2896442830 hasConceptScore W2896442830C24890656 @default.
- W2896442830 hasConceptScore W2896442830C26873012 @default.
- W2896442830 hasConceptScore W2896442830C2781204021 @default.
- W2896442830 hasConceptScore W2896442830C30080830 @default.
- W2896442830 hasConceptScore W2896442830C40636707 @default.
- W2896442830 hasConceptScore W2896442830C52233224 @default.
- W2896442830 hasConceptScore W2896442830C54937798 @default.
- W2896442830 hasConceptScore W2896442830C62520636 @default.
- W2896442830 hasConceptScore W2896442830C79955541 @default.
- W2896442830 hasConceptScore W2896442830C81263218 @default.
- W2896442830 hasLocation W28964428301 @default.
- W2896442830 hasOpenAccess W2896442830 @default.
- W2896442830 hasPrimaryLocation W28964428301 @default.
- W2896442830 hasRelatedWork W1485051130 @default.
- W2896442830 hasRelatedWork W1751349922 @default.
- W2896442830 hasRelatedWork W2045415289 @default.
- W2896442830 hasRelatedWork W2125024933 @default.
- W2896442830 hasRelatedWork W2292544662 @default.
- W2896442830 hasRelatedWork W2303928628 @default.
- W2896442830 hasRelatedWork W2485061834 @default.
- W2896442830 hasRelatedWork W2580463783 @default.
- W2896442830 hasRelatedWork W2609276216 @default.
- W2896442830 hasRelatedWork W2800439106 @default.
- W2896442830 hasRelatedWork W2954983666 @default.
- W2896442830 hasRelatedWork W3023096268 @default.
- W2896442830 hasRelatedWork W3037446197 @default.
- W2896442830 hasRelatedWork W3092396779 @default.
- W2896442830 hasRelatedWork W3092867204 @default.
- W2896442830 hasRelatedWork W3098841018 @default.
- W2896442830 hasRelatedWork W3100594430 @default.
- W2896442830 hasRelatedWork W3101140972 @default.
- W2896442830 hasRelatedWork W3105432543 @default.
- W2896442830 isParatext "false" @default.
- W2896442830 isRetracted "false" @default.
- W2896442830 magId "2896442830" @default.
- W2896442830 workType "dissertation" @default.