Band-dependent emergence of heavy quasiparticles in CeColn sub(5)
We investigate the low temperature (T < 2 K) electronic structure of the heavy fermion superconductor CeColn sub(5) (T sub(c) = 2.3 K) by angle-resolved photoemission spectroscopy (ARPES). The hybridization between conduction electrons and [functionof] electrons, which ultimately leads to the eme...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-07, Vol.88 (3) |
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| container_title | Physical review. B, Condensed matter and materials physics |
| container_volume | 88 |
| creator | Koitzsch, A Kim, T K Treske, U Knupfer, M Buchner, B Richter, M Opahle, I Follath, R Bauer, E D Sarrao, J L |
| description | We investigate the low temperature (T < 2 K) electronic structure of the heavy fermion superconductor CeColn sub(5) (T sub(c) = 2.3 K) by angle-resolved photoemission spectroscopy (ARPES). The hybridization between conduction electrons and [functionof] electrons, which ultimately leads to the emergence of heavy quasiparticles responsible for the various unusual properties of such materials, is directly monitored and shown to be strongly band dependent. In particular the most two-dimensional band is found to be the least hybridized one. A simplified multiband version of the periodic Anderson model (PAM) is used to describe the data, resulting in semiquantitative agreement with previous bulk sensitive results from de Haas-van Alphen measurements. |
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A simplified multiband version of the periodic Anderson model (PAM) is used to describe the data, resulting in semiquantitative agreement with previous bulk sensitive results from de Haas-van Alphen measurements.</description><subject>Condensed matter</subject><subject>Conduction electrons</subject><subject>Electronic structure</subject><subject>Emergence</subject><subject>Heavy fermion superconductors</subject><subject>Mathematical models</subject><subject>Photoelectron spectroscopy</subject><subject>Two dimensional</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqVyr0OgjAUQOHGaCL-vENHHJq0QIMdlWh8AAc3UuCiNaUFLjXx7XXwBZzON5wZiYSUnCWpvM2_5mrPuEjEkqwQn5yLTGVJRA5H7RrWQA-uATdR6GC8g6uB-pY-QL_edAgaTa_HydQWkBpHCyi8dRRDFcvdhixabRG2v65JfD5diwvrRz8EwKnsDNZgrXbgA5Yi5ypPhVBZ-sf6AbuhPiI</recordid><startdate>20130715</startdate><enddate>20130715</enddate><creator>Koitzsch, A</creator><creator>Kim, T K</creator><creator>Treske, U</creator><creator>Knupfer, M</creator><creator>Buchner, B</creator><creator>Richter, M</creator><creator>Opahle, I</creator><creator>Follath, R</creator><creator>Bauer, E D</creator><creator>Sarrao, J L</creator><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20130715</creationdate><title>Band-dependent emergence of heavy quasiparticles in CeColn sub(5)</title><author>Koitzsch, A ; Kim, T K ; Treske, U ; Knupfer, M ; Buchner, B ; Richter, M ; Opahle, I ; Follath, R ; Bauer, E D ; Sarrao, J L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_17097311943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Condensed matter</topic><topic>Conduction electrons</topic><topic>Electronic structure</topic><topic>Emergence</topic><topic>Heavy fermion superconductors</topic><topic>Mathematical models</topic><topic>Photoelectron spectroscopy</topic><topic>Two dimensional</topic><toplevel>online_resources</toplevel><creatorcontrib>Koitzsch, A</creatorcontrib><creatorcontrib>Kim, T K</creatorcontrib><creatorcontrib>Treske, U</creatorcontrib><creatorcontrib>Knupfer, M</creatorcontrib><creatorcontrib>Buchner, B</creatorcontrib><creatorcontrib>Richter, M</creatorcontrib><creatorcontrib>Opahle, I</creatorcontrib><creatorcontrib>Follath, R</creatorcontrib><creatorcontrib>Bauer, E D</creatorcontrib><creatorcontrib>Sarrao, J L</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. 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The hybridization between conduction electrons and [functionof] electrons, which ultimately leads to the emergence of heavy quasiparticles responsible for the various unusual properties of such materials, is directly monitored and shown to be strongly band dependent. In particular the most two-dimensional band is found to be the least hybridized one. A simplified multiband version of the periodic Anderson model (PAM) is used to describe the data, resulting in semiquantitative agreement with previous bulk sensitive results from de Haas-van Alphen measurements.</abstract></addata></record> |
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| ispartof | Physical review. B, Condensed matter and materials physics, 2013-07, Vol.88 (3) |
| issn | 1098-0121 1550-235X |
| language | eng |
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| source | American Physical Society Journals |
| subjects | Condensed matter Conduction electrons Electronic structure Emergence Heavy fermion superconductors Mathematical models Photoelectron spectroscopy Two dimensional |
| title | Band-dependent emergence of heavy quasiparticles in CeColn sub(5) |
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