Interaction of itinerant electrons and spin fluctuations in electron-doped cuprates
We performed angle-resolved photoemission and optical studies on electron-doped high-temperature superconductors (HTSCs), and compared the results with various theoretical models. Based on the fit to the experimental data, we conclude that itinerant electrons in the nonmagnetic phase predominantly c...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-05, Vol.87 (17), Article 174527 |
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| container_title | Physical review. B, Condensed matter and materials physics |
| container_volume | 87 |
| creator | Park, Seung Ryong Morinari, Takao Song, Dong Joon Leem, Choon Shik Kim, Chul Choi, Sung Kyun Choi, Kyujin Kim, Jae Hoon Schmitt, Felix Mo, Sung Kwan Lu, Dong Hui Shen, Zhi-Xun Eisaki, Hiroshi Tohyama, Takami Han, Jung Hoon Kim, Changyoung |
| description | We performed angle-resolved photoemission and optical studies on electron-doped high-temperature superconductors (HTSCs), and compared the results with various theoretical models. Based on the fit to the experimental data, we conclude that itinerant electrons in the nonmagnetic phase predominantly couple to the phase fluctuations of the remnant antiferromagnetic (AF) order, rather than to the spin excitations derived from particle-hole pairs. Our observation naturally accounts for the pseudogap phenomenon and other experimental facts in electron-doped HTSCs in terms of the size of the remnant moment and the AF-correlation length. We propose a microscopic model based on the phase fluctuation scenario which leads to a d-wave pairing gap. |
| doi_str_mv | 10.1103/PhysRevB.87.174527 |
| format | Article |
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Based on the fit to the experimental data, we conclude that itinerant electrons in the nonmagnetic phase predominantly couple to the phase fluctuations of the remnant antiferromagnetic (AF) order, rather than to the spin excitations derived from particle-hole pairs. Our observation naturally accounts for the pseudogap phenomenon and other experimental facts in electron-doped HTSCs in terms of the size of the remnant moment and the AF-correlation length. We propose a microscopic model based on the phase fluctuation scenario which leads to a d-wave pairing gap.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PhysRevB.87.174527</identifier><language>eng</language><subject>Antiferromagnetism ; Condensed matter ; COPPER OXIDE ; Cuprates ; DOPING ; ELECTRONS ; Excitation ; Fluctuation ; High temperature superconductors ; JOINING ; MAGNETIC PROPERTIES ; Photoemission ; SUPERCONDUCTORS</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</title><description>We performed angle-resolved photoemission and optical studies on electron-doped high-temperature superconductors (HTSCs), and compared the results with various theoretical models. Based on the fit to the experimental data, we conclude that itinerant electrons in the nonmagnetic phase predominantly couple to the phase fluctuations of the remnant antiferromagnetic (AF) order, rather than to the spin excitations derived from particle-hole pairs. Our observation naturally accounts for the pseudogap phenomenon and other experimental facts in electron-doped HTSCs in terms of the size of the remnant moment and the AF-correlation length. We propose a microscopic model based on the phase fluctuation scenario which leads to a d-wave pairing gap.</description><subject>Antiferromagnetism</subject><subject>Condensed matter</subject><subject>COPPER OXIDE</subject><subject>Cuprates</subject><subject>DOPING</subject><subject>ELECTRONS</subject><subject>Excitation</subject><subject>Fluctuation</subject><subject>High temperature superconductors</subject><subject>JOINING</subject><subject>MAGNETIC PROPERTIES</subject><subject>Photoemission</subject><subject>SUPERCONDUCTORS</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNo1kE9LwzAYh4MoOKdfwFOOXjrzr01y1KFzMFB0B28hTd9ipUtqkgr79nbMnd73gYff4UHolpIFpYTfv33t0zv8Pi6UXFApSibP0IyWJSkYLz_Pp59oVRDK6CW6SumbECq0YDP0sfYZonW5Cx6HFne58xP7jKEHl2PwCVvf4DR0Hrf96PJoD27CE5-UogkDNNiNQ7QZ0jW6aG2f4Ob_ztH2-Wm7fCk2r6v18mFTOC6qXICytapBMC51Q6QSNeGasoppIStuVTMhr52jlaOOEWgtb2pttXOScMX5HN0dZ4cYfkZI2ey65KDvrYcwJkMl0VIyzg4qO6ouhpQitGaI3c7GvaHEHAKaU0CjpDkG5H9cuGbw</recordid><startdate>20130531</startdate><enddate>20130531</enddate><creator>Park, Seung Ryong</creator><creator>Morinari, Takao</creator><creator>Song, Dong Joon</creator><creator>Leem, Choon Shik</creator><creator>Kim, Chul</creator><creator>Choi, Sung Kyun</creator><creator>Choi, Kyujin</creator><creator>Kim, Jae Hoon</creator><creator>Schmitt, Felix</creator><creator>Mo, Sung Kwan</creator><creator>Lu, Dong Hui</creator><creator>Shen, Zhi-Xun</creator><creator>Eisaki, Hiroshi</creator><creator>Tohyama, Takami</creator><creator>Han, Jung Hoon</creator><creator>Kim, Changyoung</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20130531</creationdate><title>Interaction of itinerant electrons and spin fluctuations in electron-doped cuprates</title><author>Park, Seung Ryong ; Morinari, Takao ; Song, Dong Joon ; Leem, Choon Shik ; Kim, Chul ; Choi, Sung Kyun ; Choi, Kyujin ; Kim, Jae Hoon ; Schmitt, Felix ; Mo, Sung Kwan ; Lu, Dong Hui ; Shen, Zhi-Xun ; Eisaki, Hiroshi ; Tohyama, Takami ; Han, Jung Hoon ; Kim, Changyoung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c346t-e8ab8be42379d0784b039126294763a8d0393bcc16c1c20efa3db9a9cc703833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Antiferromagnetism</topic><topic>Condensed matter</topic><topic>COPPER OXIDE</topic><topic>Cuprates</topic><topic>DOPING</topic><topic>ELECTRONS</topic><topic>Excitation</topic><topic>Fluctuation</topic><topic>High temperature superconductors</topic><topic>JOINING</topic><topic>MAGNETIC PROPERTIES</topic><topic>Photoemission</topic><topic>SUPERCONDUCTORS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Park, Seung Ryong</creatorcontrib><creatorcontrib>Morinari, Takao</creatorcontrib><creatorcontrib>Song, Dong Joon</creatorcontrib><creatorcontrib>Leem, Choon Shik</creatorcontrib><creatorcontrib>Kim, Chul</creatorcontrib><creatorcontrib>Choi, Sung Kyun</creatorcontrib><creatorcontrib>Choi, Kyujin</creatorcontrib><creatorcontrib>Kim, Jae Hoon</creatorcontrib><creatorcontrib>Schmitt, Felix</creatorcontrib><creatorcontrib>Mo, Sung Kwan</creatorcontrib><creatorcontrib>Lu, Dong Hui</creatorcontrib><creatorcontrib>Shen, Zhi-Xun</creatorcontrib><creatorcontrib>Eisaki, Hiroshi</creatorcontrib><creatorcontrib>Tohyama, Takami</creatorcontrib><creatorcontrib>Han, Jung Hoon</creatorcontrib><creatorcontrib>Kim, Changyoung</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B, Condensed matter and materials physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Park, Seung Ryong</au><au>Morinari, Takao</au><au>Song, Dong Joon</au><au>Leem, Choon Shik</au><au>Kim, Chul</au><au>Choi, Sung Kyun</au><au>Choi, Kyujin</au><au>Kim, Jae Hoon</au><au>Schmitt, Felix</au><au>Mo, Sung Kwan</au><au>Lu, Dong Hui</au><au>Shen, Zhi-Xun</au><au>Eisaki, Hiroshi</au><au>Tohyama, Takami</au><au>Han, Jung Hoon</au><au>Kim, Changyoung</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interaction of itinerant electrons and spin fluctuations in electron-doped cuprates</atitle><jtitle>Physical review. B, Condensed matter and materials physics</jtitle><date>2013-05-31</date><risdate>2013</risdate><volume>87</volume><issue>17</issue><artnum>174527</artnum><issn>1098-0121</issn><eissn>1550-235X</eissn><abstract>We performed angle-resolved photoemission and optical studies on electron-doped high-temperature superconductors (HTSCs), and compared the results with various theoretical models. Based on the fit to the experimental data, we conclude that itinerant electrons in the nonmagnetic phase predominantly couple to the phase fluctuations of the remnant antiferromagnetic (AF) order, rather than to the spin excitations derived from particle-hole pairs. Our observation naturally accounts for the pseudogap phenomenon and other experimental facts in electron-doped HTSCs in terms of the size of the remnant moment and the AF-correlation length. We propose a microscopic model based on the phase fluctuation scenario which leads to a d-wave pairing gap.</abstract><doi>10.1103/PhysRevB.87.174527</doi></addata></record> |
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| ispartof | Physical review. B, Condensed matter and materials physics, 2013-05, Vol.87 (17), Article 174527 |
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| source | American Physical Society Journals |
| subjects | Antiferromagnetism Condensed matter COPPER OXIDE Cuprates DOPING ELECTRONS Excitation Fluctuation High temperature superconductors JOINING MAGNETIC PROPERTIES Photoemission SUPERCONDUCTORS |
| title | Interaction of itinerant electrons and spin fluctuations in electron-doped cuprates |
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