Matches in SemOpenAlex for { <https://semopenalex.org/work/W4383046593> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W4383046593 abstract "The excitations in the Kitaev spin liquid (KSL) can be described by Majorana fermions, which have characteristic field dependence of bulk gap and topological edge modes. In the high-field state of layered honeycomb magnet $alpha$-RuCl$_3$, experimental results supporting these Majorana features have been reported recently. However, there are challenges due to sample dependence and the impact of inevitable disorder on the KSL is poorly understood. Here we study how low-energy excitations are modified by introducing point defects in $alpha$-RuCl$_3$ using electron irradiation, which induces site vacancies and exchange randomness. High-resolution measurements of the temperature dependence of specific heat $C(T)$ under in-plane fields $H$ reveal that while the field-dependent Majorana gap is almost intact, additional low-energy states with $C/T=A(H)T$ are induced by introduced defects. At low temperatures, we obtain the data collapse of $C/Tsim H^{-gamma}(T/H)$ expected for a disordered quantum spin system, but with an anomalously large exponent $gamma$. This leads us to find a new power-law scaling of the coefficient $A(H)$ with the field-sensitive Majorana gap. These results imply that the disorder induces low-energy linear Majorana excitations, which may be considered as a weak localization effect of Majorana fermions in the KSL." @default.
- W4383046593 created "2023-07-04" @default.
- W4383046593 creator A5019870502 @default.
- W4383046593 creator A5024951706 @default.
- W4383046593 creator A5026669324 @default.
- W4383046593 creator A5034281795 @default.
- W4383046593 creator A5062636273 @default.
- W4383046593 creator A5063067932 @default.
- W4383046593 creator A5077131976 @default.
- W4383046593 creator A5080883327 @default.
- W4383046593 creator A5082378325 @default.
- W4383046593 creator A5082672374 @default.
- W4383046593 creator A5085847473 @default.
- W4383046593 date "2023-06-29" @default.
- W4383046593 modified "2023-09-26" @default.
- W4383046593 title "Scaling of Defect-Induced Low-Energy Majorana Excitations in the Kitaev Magnet $alpha$-RuCl$_3$" @default.
- W4383046593 doi "https://doi.org/10.48550/arxiv.2306.17380" @default.
- W4383046593 hasPublicationYear "2023" @default.
- W4383046593 type Work @default.
- W4383046593 citedByCount "0" @default.
- W4383046593 crossrefType "posted-content" @default.
- W4383046593 hasAuthorship W4383046593A5019870502 @default.
- W4383046593 hasAuthorship W4383046593A5024951706 @default.
- W4383046593 hasAuthorship W4383046593A5026669324 @default.
- W4383046593 hasAuthorship W4383046593A5034281795 @default.
- W4383046593 hasAuthorship W4383046593A5062636273 @default.
- W4383046593 hasAuthorship W4383046593A5063067932 @default.
- W4383046593 hasAuthorship W4383046593A5077131976 @default.
- W4383046593 hasAuthorship W4383046593A5080883327 @default.
- W4383046593 hasAuthorship W4383046593A5082378325 @default.
- W4383046593 hasAuthorship W4383046593A5082672374 @default.
- W4383046593 hasAuthorship W4383046593A5085847473 @default.
- W4383046593 hasBestOaLocation W43830465931 @default.
- W4383046593 hasConcept C115260700 @default.
- W4383046593 hasConcept C121332964 @default.
- W4383046593 hasConcept C202444582 @default.
- W4383046593 hasConcept C2524010 @default.
- W4383046593 hasConcept C26873012 @default.
- W4383046593 hasConcept C2778761060 @default.
- W4383046593 hasConcept C33923547 @default.
- W4383046593 hasConcept C52233224 @default.
- W4383046593 hasConcept C54101563 @default.
- W4383046593 hasConcept C62520636 @default.
- W4383046593 hasConcept C9652623 @default.
- W4383046593 hasConcept C99844830 @default.
- W4383046593 hasConceptScore W4383046593C115260700 @default.
- W4383046593 hasConceptScore W4383046593C121332964 @default.
- W4383046593 hasConceptScore W4383046593C202444582 @default.
- W4383046593 hasConceptScore W4383046593C2524010 @default.
- W4383046593 hasConceptScore W4383046593C26873012 @default.
- W4383046593 hasConceptScore W4383046593C2778761060 @default.
- W4383046593 hasConceptScore W4383046593C33923547 @default.
- W4383046593 hasConceptScore W4383046593C52233224 @default.
- W4383046593 hasConceptScore W4383046593C54101563 @default.
- W4383046593 hasConceptScore W4383046593C62520636 @default.
- W4383046593 hasConceptScore W4383046593C9652623 @default.
- W4383046593 hasConceptScore W4383046593C99844830 @default.
- W4383046593 hasLocation W43830465931 @default.
- W4383046593 hasOpenAccess W4383046593 @default.
- W4383046593 hasPrimaryLocation W43830465931 @default.
- W4383046593 hasRelatedWork W2034462403 @default.
- W4383046593 hasRelatedWork W2060419366 @default.
- W4383046593 hasRelatedWork W2073997564 @default.
- W4383046593 hasRelatedWork W2083009999 @default.
- W4383046593 hasRelatedWork W2513489236 @default.
- W4383046593 hasRelatedWork W2742717914 @default.
- W4383046593 hasRelatedWork W2799125399 @default.
- W4383046593 hasRelatedWork W2899471361 @default.
- W4383046593 hasRelatedWork W3109211544 @default.
- W4383046593 hasRelatedWork W3111722282 @default.
- W4383046593 isParatext "false" @default.
- W4383046593 isRetracted "false" @default.
- W4383046593 workType "article" @default.