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Conference Paper: Electron momentum distribution in semiconductors: A comparative study of the Compton profile and positron angular correlation methods
Title | Electron momentum distribution in semiconductors: A comparative study of the Compton profile and positron angular correlation methods |
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Authors | |
Keywords | Angular Correlation of Annihilation Radiation Anisotropies Autocorrelation Function Compton Profile Momentum Density |
Issue Date | 1997 |
Publisher | Trans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.net |
Citation | Materials Science Forum, 1997, v. 255-257, p. 179-183 How to Cite? |
Abstract | Compton profile and angular correlation of positron annihilation radiations are calculated to study the electron momentum distributions and the effect of the positron thereon. We have found that the major difference between the electron momentum density and the electron-positron momentum density is due to the highly anisotropic positron wavefunction in semiconductors. The positron-electron enhancement factor is found to be weakly momentum dependent. The features at the low momentum region of the momentum densities are attributed for the σ and π bonds of the sp 3 hybridised orbitals. |
Persistent Identifier | http://hdl.handle.net/10722/109751 |
ISSN | 2023 SCImago Journal Rankings: 0.195 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Panda, BK | en_HK |
dc.contributor.author | Fung, S | en_HK |
dc.contributor.author | Beling, CD | en_HK |
dc.date.accessioned | 2010-09-26T01:35:42Z | - |
dc.date.available | 2010-09-26T01:35:42Z | - |
dc.date.issued | 1997 | en_HK |
dc.identifier.citation | Materials Science Forum, 1997, v. 255-257, p. 179-183 | en_HK |
dc.identifier.issn | 0255-5476 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/109751 | - |
dc.description.abstract | Compton profile and angular correlation of positron annihilation radiations are calculated to study the electron momentum distributions and the effect of the positron thereon. We have found that the major difference between the electron momentum density and the electron-positron momentum density is due to the highly anisotropic positron wavefunction in semiconductors. The positron-electron enhancement factor is found to be weakly momentum dependent. The features at the low momentum region of the momentum densities are attributed for the σ and π bonds of the sp 3 hybridised orbitals. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Trans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.net | en_HK |
dc.relation.ispartof | Materials Science Forum | en_HK |
dc.rights | Materials Science Forum. Copyright © Trans Tech Publications Ltd. | en_HK |
dc.subject | Angular Correlation of Annihilation Radiation Anisotropies | en_HK |
dc.subject | Autocorrelation Function | en_HK |
dc.subject | Compton Profile | en_HK |
dc.subject | Momentum Density | en_HK |
dc.title | Electron momentum distribution in semiconductors: A comparative study of the Compton profile and positron angular correlation methods | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0255-5476&volume=255-257&spage=179&epage=183&date=1997&atitle=Electron+Momentum+Distribution+in+Semiconductors:+A+Comparative+Study+of+the+Compton+Profile+and+Positron+Angular+Correlation+Methods | en_HK |
dc.identifier.email | Fung, S: sfung@hku.hk | en_HK |
dc.identifier.email | Beling, CD: cdbeling@hkucc.hku.hk | en_HK |
dc.identifier.authority | Fung, S=rp00695 | en_HK |
dc.identifier.authority | Beling, CD=rp00660 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-5244364315 | en_HK |
dc.identifier.hkuros | 29698 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-5244364315&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 255-257 | en_HK |
dc.identifier.spage | 179 | en_HK |
dc.identifier.epage | 183 | en_HK |
dc.publisher.place | Switzerland | en_HK |
dc.identifier.scopusauthorid | Panda, BK=22963418500 | en_HK |
dc.identifier.scopusauthorid | Fung, S=7201970040 | en_HK |
dc.identifier.scopusauthorid | Beling, CD=7005864180 | en_HK |
dc.identifier.issnl | 0255-5476 | - |