Magnetic field tunability of spin-polarized excitations in a high-temperature magnet
We bring together magnetic circular dichroism, photoconductivity, and complementary first-principles calculations in order to unravel spin-charge interactions in the high Curie temperature magnet NiFe2O4. Analysis uncovers a massive set of well-isolated spin-down states, a metamagnetic transition in...
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| Veröffentlicht in: | Physical review. B 2017-09, Vol.96 (9), Article 094427 |
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| container_issue | 9 |
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| container_title | Physical review. B |
| container_volume | 96 |
| creator | Holinsworth, B. S. Sims, H. Cherian, J. G. Mazumdar, D. Harms, N. C. Chapman, B. C. L. Gupta, A. McGill, S. A. Musfeldt, J. L. |
| description | We bring together magnetic circular dichroism, photoconductivity, and complementary first-principles calculations in order to unravel spin-charge interactions in the high Curie temperature magnet NiFe2O4. Analysis uncovers a massive set of well-isolated spin-down states, a metamagnetic transition involving spin on the Ni center that switches the electronic structure of this system, and photoconductivity that depends on the magnetic field. These findings open the door for the creation and control of spin-polarized excitations from minority channel charge transfer in spinel ferrites. |
| doi_str_mv | 10.1103/PhysRevB.96.094427 |
| format | Article |
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S. ; Sims, H. ; Cherian, J. G. ; Mazumdar, D. ; Harms, N. C. ; Chapman, B. C. L. ; Gupta, A. ; McGill, S. A. ; Musfeldt, J. L.</creator><creatorcontrib>Holinsworth, B. S. ; Sims, H. ; Cherian, J. G. ; Mazumdar, D. ; Harms, N. C. ; Chapman, B. C. L. ; Gupta, A. ; McGill, S. A. ; Musfeldt, J. L.</creatorcontrib><description>We bring together magnetic circular dichroism, photoconductivity, and complementary first-principles calculations in order to unravel spin-charge interactions in the high Curie temperature magnet NiFe2O4. Analysis uncovers a massive set of well-isolated spin-down states, a metamagnetic transition involving spin on the Ni center that switches the electronic structure of this system, and photoconductivity that depends on the magnetic field. These findings open the door for the creation and control of spin-polarized excitations from minority channel charge transfer in spinel ferrites.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.96.094427</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Charge transfer ; Curie temperature ; Dichroism ; Electronic structure ; Electrons ; First principles ; Magnetic fields ; Magnetism ; Nickel ferrites ; Photoconductivity ; Switches</subject><ispartof>Physical review. 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These findings open the door for the creation and control of spin-polarized excitations from minority channel charge transfer in spinel ferrites.</description><subject>Charge transfer</subject><subject>Curie temperature</subject><subject>Dichroism</subject><subject>Electronic structure</subject><subject>Electrons</subject><subject>First principles</subject><subject>Magnetic fields</subject><subject>Magnetism</subject><subject>Nickel ferrites</subject><subject>Photoconductivity</subject><subject>Switches</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kF1LwzAUhosoOHR_wKug151Jk-XjUodfMFFkXoc0PV0zurQmqTh_vdWpV-fl8PDy8mTZGcEzQjC9fG528QXer2eKz7BirBAH2aRgXOVKcXX4n-f4OJvGuMEYE46VwGqSrR7N2kNyFtUO2gqlwZvStS7tUFej2Duf911rgvuECsGHdckk1_mInEcGNW7d5Am2PQSThgBo-9N2mh3Vpo0w_b0n2evtzWpxny-f7h4WV8vcMlKkvLJzwWpVUsllwcbMQFmQUoraMluWlRBM0NqAMuMPy4rAiHM1twWRFZf0JDvf93YxOR3HcWAb23kPNmlCFRUYj9DFHupD9zZATHrTDcGPu3RBCkoko4KOVLGnbOhiDFDrPritCTtNsP62rP8sa8X13jL9AmtWcaw</recordid><startdate>20170921</startdate><enddate>20170921</enddate><creator>Holinsworth, B. 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L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic field tunability of spin-polarized excitations in a high-temperature magnet</atitle><jtitle>Physical review. B</jtitle><date>2017-09-21</date><risdate>2017</risdate><volume>96</volume><issue>9</issue><artnum>094427</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>We bring together magnetic circular dichroism, photoconductivity, and complementary first-principles calculations in order to unravel spin-charge interactions in the high Curie temperature magnet NiFe2O4. Analysis uncovers a massive set of well-isolated spin-down states, a metamagnetic transition involving spin on the Ni center that switches the electronic structure of this system, and photoconductivity that depends on the magnetic field. 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| ispartof | Physical review. B, 2017-09, Vol.96 (9), Article 094427 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Charge transfer Curie temperature Dichroism Electronic structure Electrons First principles Magnetic fields Magnetism Nickel ferrites Photoconductivity Switches |
| title | Magnetic field tunability of spin-polarized excitations in a high-temperature magnet |
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