Matches in SemOpenAlex for { <https://semopenalex.org/work/W2117255530> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2117255530 abstract "A complete understanding of the the ν = 5 2 fractional quantum hall effect (FQHE) continues to be among the most exciting problems in semiconductor physics. It is widely believed that this unique electron state is described by the Moore-Read Pfaffian wavefunction, resulting from a BCS-like pairing of composite fermions. In recent years this wavefunction has received special interest owing to its non-abelian quantum statistics which underlies a new paradigm for fault tolerant quantum computation. However, in spite of several theoretical advancements, an unequivocal experimental verification of the Moore-Read description is still missing. We studied the 52 state in a very high quality 2DEG sample with the lowest electron density reported to date, by nearly a factor of two. We demonstrate that large discrepancies between experimentally measured values of the 52 energy gap, and theoretical calculations based on the Moore-Read theory, can not be trivially attributed to disorder as has conventionally been assumed. Using a tilted field geometry, we investigated the effect of applying an in-plane magnetic field on the 52 state. We observe the 5 2 energy gap to collapse linearly with the in-plane field, whereas the neighbouring 73 shows a strong enhancement. The opposite behaviour between the two states is in startling contrast to theory which predicts both gaps should be similarly suppressed. Since the early theoretical foundation in support of the Moore-Read interpretation presumed the two states should behave the same, our experimental finding of opposite behaviour may necessitate a fundamental rethinking of the nature of the 52 FQHE. A crucial step towards verifying the Moore-Read description of the ν = 5 2 FQHE will be an unambiguous measurement of its spin state. In an effort to measure the 5 2 spin directly, we implemented a resistively detected nuclear magnetic resonance (RDNMR) technique. I report on our detailed study of the anomalous RDNMR lineshape around ν = 1, and discuss progress made towards measuring the 5 2 spin with this technique." @default.
- W2117255530 created "2016-06-24" @default.
- W2117255530 creator A5067295203 @default.
- W2117255530 date "2008-01-01" @default.
- W2117255530 modified "2023-09-23" @default.
- W2117255530 title "A study of the fractional quantum Hall energy gap at half filling" @default.
- W2117255530 cites W110285710 @default.
- W2117255530 cites W1990272961 @default.
- W2117255530 cites W2505024634 @default.
- W2117255530 cites W577378748 @default.
- W2117255530 hasPublicationYear "2008" @default.
- W2117255530 type Work @default.
- W2117255530 sameAs 2117255530 @default.
- W2117255530 citedByCount "1" @default.
- W2117255530 countsByYear W21172555302014 @default.
- W2117255530 crossrefType "journal-article" @default.
- W2117255530 hasAuthorship W2117255530A5067295203 @default.
- W2117255530 hasConcept C113603373 @default.
- W2117255530 hasConcept C114614502 @default.
- W2117255530 hasConcept C121332964 @default.
- W2117255530 hasConcept C14103023 @default.
- W2117255530 hasConcept C145727058 @default.
- W2117255530 hasConcept C147120987 @default.
- W2117255530 hasConcept C184113097 @default.
- W2117255530 hasConcept C200369452 @default.
- W2117255530 hasConcept C26873012 @default.
- W2117255530 hasConcept C2775956649 @default.
- W2117255530 hasConcept C33332235 @default.
- W2117255530 hasConcept C33923547 @default.
- W2117255530 hasConcept C50899005 @default.
- W2117255530 hasConcept C54101563 @default.
- W2117255530 hasConcept C62520636 @default.
- W2117255530 hasConcept C66870719 @default.
- W2117255530 hasConcept C84114770 @default.
- W2117255530 hasConcept C9508911 @default.
- W2117255530 hasConceptScore W2117255530C113603373 @default.
- W2117255530 hasConceptScore W2117255530C114614502 @default.
- W2117255530 hasConceptScore W2117255530C121332964 @default.
- W2117255530 hasConceptScore W2117255530C14103023 @default.
- W2117255530 hasConceptScore W2117255530C145727058 @default.
- W2117255530 hasConceptScore W2117255530C147120987 @default.
- W2117255530 hasConceptScore W2117255530C184113097 @default.
- W2117255530 hasConceptScore W2117255530C200369452 @default.
- W2117255530 hasConceptScore W2117255530C26873012 @default.
- W2117255530 hasConceptScore W2117255530C2775956649 @default.
- W2117255530 hasConceptScore W2117255530C33332235 @default.
- W2117255530 hasConceptScore W2117255530C33923547 @default.
- W2117255530 hasConceptScore W2117255530C50899005 @default.
- W2117255530 hasConceptScore W2117255530C54101563 @default.
- W2117255530 hasConceptScore W2117255530C62520636 @default.
- W2117255530 hasConceptScore W2117255530C66870719 @default.
- W2117255530 hasConceptScore W2117255530C84114770 @default.
- W2117255530 hasConceptScore W2117255530C9508911 @default.
- W2117255530 hasLocation W21172555301 @default.
- W2117255530 hasOpenAccess W2117255530 @default.
- W2117255530 hasPrimaryLocation W21172555301 @default.
- W2117255530 hasRelatedWork W1502790285 @default.
- W2117255530 hasRelatedWork W1642766553 @default.
- W2117255530 hasRelatedWork W1648432234 @default.
- W2117255530 hasRelatedWork W1999282039 @default.
- W2117255530 hasRelatedWork W2005108803 @default.
- W2117255530 hasRelatedWork W2026519256 @default.
- W2117255530 hasRelatedWork W2043169143 @default.
- W2117255530 hasRelatedWork W2044729560 @default.
- W2117255530 hasRelatedWork W2065350721 @default.
- W2117255530 hasRelatedWork W2076046043 @default.
- W2117255530 hasRelatedWork W2076481 @default.
- W2117255530 hasRelatedWork W2081607141 @default.
- W2117255530 hasRelatedWork W2130074260 @default.
- W2117255530 hasRelatedWork W2495440606 @default.
- W2117255530 hasRelatedWork W2971714832 @default.
- W2117255530 hasRelatedWork W3102479088 @default.
- W2117255530 hasRelatedWork W3120679980 @default.
- W2117255530 hasRelatedWork W36570877 @default.
- W2117255530 hasRelatedWork W58396904 @default.
- W2117255530 hasRelatedWork W92803827 @default.
- W2117255530 isParatext "false" @default.
- W2117255530 isRetracted "false" @default.
- W2117255530 magId "2117255530" @default.
- W2117255530 workType "article" @default.