Low-energy nondipole effects in molecular nitrogen valence-shell photoionization
Observations are reported for the first time of significant nondipole effects in the photoionization of the outer-valence orbitals of diatomic molecules. Measured nondipole angular-distribution parameters for the 3sigma(g), 1pi(u), and 2sigma(u) shells of N2 exhibit spectral variations with incident...
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Veröffentlicht in: | Physical review letters 2006-09, Vol.97 (10), p.103006-103006, Article 103006 |
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creator | Hemmers, O Guillemin, R Rolles, D Wolska, A Lindle, D W Kanter, E P Krässig, B Southworth, S H Wehlitz, R Zimmermann, B McKoy, V Langhoff, P W |
description | Observations are reported for the first time of significant nondipole effects in the photoionization of the outer-valence orbitals of diatomic molecules. Measured nondipole angular-distribution parameters for the 3sigma(g), 1pi(u), and 2sigma(u) shells of N2 exhibit spectral variations with incident photon energies from thresholds to approximately 200 eV which are attributed via concomitant calculations to particular final-state symmetry waves arising from (E1)multiply sign in circle(M1,E2) radiation-matter interactions first-order in photon momentum. Comparisons with previously reported K-edge studies in N2 verify linear scaling with photon momentum, accounting in part for the significantly enhanced nondipole behavior observed in inner-shell ionization at correspondingly higher momentum values in this molecule. |
doi_str_mv | 10.1103/PhysRevLett.97.103006 |
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Measured nondipole angular-distribution parameters for the 3sigma(g), 1pi(u), and 2sigma(u) shells of N2 exhibit spectral variations with incident photon energies from thresholds to approximately 200 eV which are attributed via concomitant calculations to particular final-state symmetry waves arising from (E1)multiply sign in circle(M1,E2) radiation-matter interactions first-order in photon momentum. Comparisons with previously reported K-edge studies in N2 verify linear scaling with photon momentum, accounting in part for the significantly enhanced nondipole behavior observed in inner-shell ionization at correspondingly higher momentum values in this molecule.</description><subject>ANGULAR DISTRIBUTION</subject><subject>ATOMIC AND MOLECULAR PHYSICS</subject><subject>E1-TRANSITIONS</subject><subject>E2-TRANSITIONS</subject><subject>INNER-SHELL IONIZATION</subject><subject>M1-TRANSITIONS</subject><subject>MATTER</subject><subject>NITROGEN</subject><subject>PHOTOIONIZATION</subject><subject>PHOTON BEAMS</subject><subject>PHOTONS</subject><subject>SYMMETRY</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpNkFtLxDAQhYMo7nr5CUpB8K3rpGmT9lEWb7CgiD6HNJnaSDdZm6yy_noju6BPhxnOmTl8hJxRmFEK7Oqp34Rn_FxgjLNGzNIKgO-RKQXR5ILScp9MARjNGwAxIUchvAMALXh9SCZUQFHVtJySp4X_ytHh-LbJnHfGrvyAGXYd6hgy67JlmvV6UGPmbBz9G7rsUw3oNOahx2HIVr2P3npnv1VMckIOOjUEPN3pMXm9vXmZ3-eLx7uH-fUi14xVMcdUtzKamk6U2Fam5VBR2nClTC1aVhhTlYDMoDC0VZpxhk1baNVx3mmEkh2Ti-1dH6KVQduIutfeuVRcFlBzEDVPrsutazX6jzWGKJc26FRbOfTrIHndlCzBSsZqa9SjD2HETq5Gu1TjRlKQv8DlP-CyEXILPOXOdw_W7RLNX2pHmP0AaF6BCQ</recordid><startdate>20060908</startdate><enddate>20060908</enddate><creator>Hemmers, O</creator><creator>Guillemin, R</creator><creator>Rolles, D</creator><creator>Wolska, A</creator><creator>Lindle, D W</creator><creator>Kanter, E P</creator><creator>Krässig, B</creator><creator>Southworth, S H</creator><creator>Wehlitz, R</creator><creator>Zimmermann, B</creator><creator>McKoy, V</creator><creator>Langhoff, P W</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20060908</creationdate><title>Low-energy nondipole effects in molecular nitrogen valence-shell photoionization</title><author>Hemmers, O ; Guillemin, R ; Rolles, D ; Wolska, A ; Lindle, D W ; Kanter, E P ; Krässig, B ; Southworth, S H ; Wehlitz, R ; Zimmermann, B ; McKoy, V ; Langhoff, P W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-e3005dc1df74eb5db6051196aad87b32dd540e3de7d1bac363e9b2caf66fce043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ANGULAR DISTRIBUTION</topic><topic>ATOMIC AND MOLECULAR PHYSICS</topic><topic>E1-TRANSITIONS</topic><topic>E2-TRANSITIONS</topic><topic>INNER-SHELL IONIZATION</topic><topic>M1-TRANSITIONS</topic><topic>MATTER</topic><topic>NITROGEN</topic><topic>PHOTOIONIZATION</topic><topic>PHOTON BEAMS</topic><topic>PHOTONS</topic><topic>SYMMETRY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hemmers, O</creatorcontrib><creatorcontrib>Guillemin, R</creatorcontrib><creatorcontrib>Rolles, D</creatorcontrib><creatorcontrib>Wolska, A</creatorcontrib><creatorcontrib>Lindle, D W</creatorcontrib><creatorcontrib>Kanter, E P</creatorcontrib><creatorcontrib>Krässig, B</creatorcontrib><creatorcontrib>Southworth, S H</creatorcontrib><creatorcontrib>Wehlitz, R</creatorcontrib><creatorcontrib>Zimmermann, B</creatorcontrib><creatorcontrib>McKoy, V</creatorcontrib><creatorcontrib>Langhoff, P W</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hemmers, O</au><au>Guillemin, R</au><au>Rolles, D</au><au>Wolska, A</au><au>Lindle, D W</au><au>Kanter, E P</au><au>Krässig, B</au><au>Southworth, S H</au><au>Wehlitz, R</au><au>Zimmermann, B</au><au>McKoy, V</au><au>Langhoff, P W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-energy nondipole effects in molecular nitrogen valence-shell photoionization</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2006-09-08</date><risdate>2006</risdate><volume>97</volume><issue>10</issue><spage>103006</spage><epage>103006</epage><pages>103006-103006</pages><artnum>103006</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Observations are reported for the first time of significant nondipole effects in the photoionization of the outer-valence orbitals of diatomic molecules. Measured nondipole angular-distribution parameters for the 3sigma(g), 1pi(u), and 2sigma(u) shells of N2 exhibit spectral variations with incident photon energies from thresholds to approximately 200 eV which are attributed via concomitant calculations to particular final-state symmetry waves arising from (E1)multiply sign in circle(M1,E2) radiation-matter interactions first-order in photon momentum. Comparisons with previously reported K-edge studies in N2 verify linear scaling with photon momentum, accounting in part for the significantly enhanced nondipole behavior observed in inner-shell ionization at correspondingly higher momentum values in this molecule.</abstract><cop>United States</cop><pmid>17025814</pmid><doi>10.1103/PhysRevLett.97.103006</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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subjects | ANGULAR DISTRIBUTION ATOMIC AND MOLECULAR PHYSICS E1-TRANSITIONS E2-TRANSITIONS INNER-SHELL IONIZATION M1-TRANSITIONS MATTER NITROGEN PHOTOIONIZATION PHOTON BEAMS PHOTONS SYMMETRY |
title | Low-energy nondipole effects in molecular nitrogen valence-shell photoionization |
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