Origin of ferromagnetism in semiconducting (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}
We systematically measure and analyze x-ray absorption fine structure and the anomalous Hall effect of recently discovered room-temperature ferromagnetic semiconductor thin films (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}. The x-ray fine structure demonstrates that divalent Fe ions exi...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2006-10, Vol.74 (16) |
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| container_title | Physical review. B, Condensed matter and materials physics |
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| creator | Yu, Z. G. He Jun Xu Shifa Xue Qizhen Yoo, Young K. Cheng Shifan Erve, O. M. J. van't Jonker, B. T. Marcus, M. A. Xiang Xiaodong Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538 |
| description | We systematically measure and analyze x-ray absorption fine structure and the anomalous Hall effect of recently discovered room-temperature ferromagnetic semiconductor thin films (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}. The x-ray fine structure demonstrates that divalent Fe ions exist in ferromagnetic samples but not in nonmagnetic ones, suggesting a mobile-electron-mediated ferromagnetism. The anomalous Hall behavior is found to be consistent with that of ferromagnets, in which carriers are delocalized, but qualitatively different from that of double-exchange manganites, in which carriers are bound to magnetic ions, confirming that the ferromagnetism in (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}} is mediated by mobile electrons. |
| doi_str_mv | 10.1103/PHYSREVB.74.165321 |
| format | Article |
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G. ; He Jun ; Xu Shifa ; Xue Qizhen ; Yoo, Young K. ; Cheng Shifan ; Erve, O. M. J. van't ; Jonker, B. T. ; Marcus, M. A. ; Xiang Xiaodong ; Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</creator><creatorcontrib>Yu, Z. G. ; He Jun ; Xu Shifa ; Xue Qizhen ; Yoo, Young K. ; Cheng Shifan ; Erve, O. M. J. van't ; Jonker, B. T. ; Marcus, M. A. ; Xiang Xiaodong ; Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</creatorcontrib><description>We systematically measure and analyze x-ray absorption fine structure and the anomalous Hall effect of recently discovered room-temperature ferromagnetic semiconductor thin films (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}. The x-ray fine structure demonstrates that divalent Fe ions exist in ferromagnetic samples but not in nonmagnetic ones, suggesting a mobile-electron-mediated ferromagnetism. The anomalous Hall behavior is found to be consistent with that of ferromagnets, in which carriers are delocalized, but qualitatively different from that of double-exchange manganites, in which carriers are bound to magnetic ions, confirming that the ferromagnetism in (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}} is mediated by mobile electrons.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PHYSREVB.74.165321</identifier><language>eng</language><publisher>United States</publisher><subject>ABSORPTION SPECTROSCOPY ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; CUPRATES ; ELECTRONS ; FERROMAGNETIC MATERIALS ; FERROMAGNETISM ; FINE STRUCTURE ; HALL EFFECT ; INDIUM COMPOUNDS ; IRON COMPOUNDS ; IRON IONS ; MAGNETIC SEMICONDUCTORS ; THIN FILMS ; X RADIATION ; X-RAY SPECTROSCOPY</subject><ispartof>Physical review. 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A.</creatorcontrib><creatorcontrib>Xiang Xiaodong</creatorcontrib><creatorcontrib>Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</creatorcontrib><title>Origin of ferromagnetism in semiconducting (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}</title><title>Physical review. B, Condensed matter and materials physics</title><description>We systematically measure and analyze x-ray absorption fine structure and the anomalous Hall effect of recently discovered room-temperature ferromagnetic semiconductor thin films (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}. The x-ray fine structure demonstrates that divalent Fe ions exist in ferromagnetic samples but not in nonmagnetic ones, suggesting a mobile-electron-mediated ferromagnetism. The anomalous Hall behavior is found to be consistent with that of ferromagnets, in which carriers are delocalized, but qualitatively different from that of double-exchange manganites, in which carriers are bound to magnetic ions, confirming that the ferromagnetism in (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}} is mediated by mobile electrons.</description><subject>ABSORPTION SPECTROSCOPY</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>CUPRATES</subject><subject>ELECTRONS</subject><subject>FERROMAGNETIC MATERIALS</subject><subject>FERROMAGNETISM</subject><subject>FINE STRUCTURE</subject><subject>HALL EFFECT</subject><subject>INDIUM COMPOUNDS</subject><subject>IRON COMPOUNDS</subject><subject>IRON IONS</subject><subject>MAGNETIC SEMICONDUCTORS</subject><subject>THIN FILMS</subject><subject>X RADIATION</subject><subject>X-RAY SPECTROSCOPY</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNjdFqwjAYhcNwMN18Aa8C3uhFuvxJY_VWseiVYxtju5Ia0y7DptA_BUXy7pbiA-zq-87hwCFkBDwC4PL1bfPz8b7-WkZJHMFMSQEPpA9KcSak-u61zhdzxkHAExkg_nEO8SIWfaJ3tS2so1VOc1PXVZkVzniLJW1LNKXVlTs22ltX0MnWXbE5UGBndgmp6cI5rJpOLmHaUYRdR8muaIsyC-GFPObZCc3wzmcyTtefqw2r0Ns9auuN_m1_nNF-L_hcySSZyf-tbgVoTik</recordid><startdate>20061015</startdate><enddate>20061015</enddate><creator>Yu, Z. G.</creator><creator>He Jun</creator><creator>Xu Shifa</creator><creator>Xue Qizhen</creator><creator>Yoo, Young K.</creator><creator>Cheng Shifan</creator><creator>Erve, O. M. J. van't</creator><creator>Jonker, B. T.</creator><creator>Marcus, M. A.</creator><creator>Xiang Xiaodong</creator><creator>Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</creator><scope>OTOTI</scope></search><sort><creationdate>20061015</creationdate><title>Origin of ferromagnetism in semiconducting (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}</title><author>Yu, Z. G. ; He Jun ; Xu Shifa ; Xue Qizhen ; Yoo, Young K. ; Cheng Shifan ; Erve, O. M. J. van't ; Jonker, B. T. ; Marcus, M. A. ; Xiang Xiaodong ; Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_208537763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ABSORPTION SPECTROSCOPY</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>CUPRATES</topic><topic>ELECTRONS</topic><topic>FERROMAGNETIC MATERIALS</topic><topic>FERROMAGNETISM</topic><topic>FINE STRUCTURE</topic><topic>HALL EFFECT</topic><topic>INDIUM COMPOUNDS</topic><topic>IRON COMPOUNDS</topic><topic>IRON IONS</topic><topic>MAGNETIC SEMICONDUCTORS</topic><topic>THIN FILMS</topic><topic>X RADIATION</topic><topic>X-RAY SPECTROSCOPY</topic><toplevel>online_resources</toplevel><creatorcontrib>Yu, Z. G.</creatorcontrib><creatorcontrib>He Jun</creatorcontrib><creatorcontrib>Xu Shifa</creatorcontrib><creatorcontrib>Xue Qizhen</creatorcontrib><creatorcontrib>Yoo, Young K.</creatorcontrib><creatorcontrib>Cheng Shifan</creatorcontrib><creatorcontrib>Erve, O. M. J. van't</creatorcontrib><creatorcontrib>Jonker, B. T.</creatorcontrib><creatorcontrib>Marcus, M. A.</creatorcontrib><creatorcontrib>Xiang Xiaodong</creatorcontrib><creatorcontrib>Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review. B, Condensed matter and materials physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Z. G.</au><au>He Jun</au><au>Xu Shifa</au><au>Xue Qizhen</au><au>Yoo, Young K.</au><au>Cheng Shifan</au><au>Erve, O. M. J. van't</au><au>Jonker, B. T.</au><au>Marcus, M. A.</au><au>Xiang Xiaodong</au><au>Intematix Corporation, 46410 South Fremont Boulevard, Fremont, California 94538</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Origin of ferromagnetism in semiconducting (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}</atitle><jtitle>Physical review. B, Condensed matter and materials physics</jtitle><date>2006-10-15</date><risdate>2006</risdate><volume>74</volume><issue>16</issue><issn>1098-0121</issn><eissn>1550-235X</eissn><abstract>We systematically measure and analyze x-ray absorption fine structure and the anomalous Hall effect of recently discovered room-temperature ferromagnetic semiconductor thin films (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}}. The x-ray fine structure demonstrates that divalent Fe ions exist in ferromagnetic samples but not in nonmagnetic ones, suggesting a mobile-electron-mediated ferromagnetism. The anomalous Hall behavior is found to be consistent with that of ferromagnets, in which carriers are delocalized, but qualitatively different from that of double-exchange manganites, in which carriers are bound to magnetic ions, confirming that the ferromagnetism in (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}} is mediated by mobile electrons.</abstract><cop>United States</cop><doi>10.1103/PHYSREVB.74.165321</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1098-0121 |
| ispartof | Physical review. B, Condensed matter and materials physics, 2006-10, Vol.74 (16) |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_osti_scitechconnect_20853776 |
| source | APS: American Physical Society E-Journals (Physics) |
| subjects | ABSORPTION SPECTROSCOPY CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CUPRATES ELECTRONS FERROMAGNETIC MATERIALS FERROMAGNETISM FINE STRUCTURE HALL EFFECT INDIUM COMPOUNDS IRON COMPOUNDS IRON IONS MAGNETIC SEMICONDUCTORS THIN FILMS X RADIATION X-RAY SPECTROSCOPY |
| title | Origin of ferromagnetism in semiconducting (In{sub 1-x-y}Fe{sub x}Cu{sub y}){sub 2}O{sub 3-{sigma}} |
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