Self-stabilizing exchange-mediated spin transport
Long-range spin transport in magnetic systems can be achieved by means of exchange-mediated spin textures with robust topological winding, a phenomenon referred to as spin superfluidity. Its experimental signatures have been discussed in antiferromagnets, which are nearly free of dipolar interaction...
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| Veröffentlicht in: | Physical review. B 2021-04, Vol.103 (14), Article 144412 |
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| container_title | Physical review. B |
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| creator | Schneider, T. Hill, D. Kákay, A. Lenz, K. Lindner, J. Fassbender, J. Upadhyaya, P. Liu, Yuxiang Wang, Kang Tserkovnyak, Y. Krivorotov, I. N. Barsukov, I. |
| description | Long-range spin transport in magnetic systems can be achieved by means of exchange-mediated spin textures with robust topological winding, a phenomenon referred to as spin superfluidity. Its experimental signatures have been discussed in antiferromagnets, which are nearly free of dipolar interaction. However, in ferromagnets, which possess non-negligible dipole fields, realization of such spin transport has remained a challenge. Using micromagnetic simulations, we investigate coherent exchange-mediated spin transport in extended thin ferromagnetic films. We uncover a two-fluid state in which the long-range spin transport by spin textures coexists with spin waves, as well as a soliton-screened spin transport regime at high spin injection biases. Both states are associated with distinct spin texture reconstructions near the spin injection region and sustain spin transport over large distances. |
| doi_str_mv | 10.1103/PhysRevB.103.144412 |
| format | Article |
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We uncover a two-fluid state in which the long-range spin transport by spin textures coexists with spin waves, as well as a soliton-screened spin transport regime at high spin injection biases. Both states are associated with distinct spin texture reconstructions near the spin injection region and sustain spin transport over large distances.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.103.144412</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Antiferromagnetism ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; dipolar interaction ; Dipoles ; exchange interaction ; Exchanging ; Ferromagnetic films ; Ferromagnetic materials ; magnetic texture ; magnetization dynamics ; Magnons ; MATERIALS SCIENCE ; micromagnetism ; Solitary waves ; spin current ; spintronics ; Superfluidity ; Thin films</subject><ispartof>Physical review. 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We uncover a two-fluid state in which the long-range spin transport by spin textures coexists with spin waves, as well as a soliton-screened spin transport regime at high spin injection biases. Both states are associated with distinct spin texture reconstructions near the spin injection region and sustain spin transport over large distances.</description><subject>Antiferromagnetism</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>dipolar interaction</subject><subject>Dipoles</subject><subject>exchange interaction</subject><subject>Exchanging</subject><subject>Ferromagnetic films</subject><subject>Ferromagnetic materials</subject><subject>magnetic texture</subject><subject>magnetization dynamics</subject><subject>Magnons</subject><subject>MATERIALS SCIENCE</subject><subject>micromagnetism</subject><subject>Solitary waves</subject><subject>spin current</subject><subject>spintronics</subject><subject>Superfluidity</subject><subject>Thin films</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNo9kFtLAzEQhYMoWGp_gS9Fn7dmNsm2edTiDQqKl-ewyU7alDa7JqlYf70pqzIPMwc-hnMOIedAJwCUXT2v9vEFP28mWUyAcw7lERmUvJKFlJU8_r8FPSWjGNeUUqionFI5IPCKG1vEVGu3cd_OL8f4ZVa1X2KxxcbVCZtx7Jwfp1D72LUhnZETW28ijn73kLzf3b7NH4rF0_3j_HpRGMZlKkDXTKNtrBBU6lIbUaEobcMsABMazawBajlUAjVSJmzJtGVmWjWY_ckZG5KL_m8bk1PRuIRmZVrv0SQFM5EjQIYue6gL7ccOY1Lrdhd89qVKUXJO88hMsZ4yoY0xoFVdcNs67BVQdehQ_XWoDqLvkP0ATjxlqA</recordid><startdate>20210408</startdate><enddate>20210408</enddate><creator>Schneider, T.</creator><creator>Hill, D.</creator><creator>Kákay, A.</creator><creator>Lenz, K.</creator><creator>Lindner, J.</creator><creator>Fassbender, J.</creator><creator>Upadhyaya, P.</creator><creator>Liu, Yuxiang</creator><creator>Wang, Kang</creator><creator>Tserkovnyak, Y.</creator><creator>Krivorotov, I. 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| ispartof | Physical review. B, 2021-04, Vol.103 (14), Article 144412 |
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| subjects | Antiferromagnetism CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS dipolar interaction Dipoles exchange interaction Exchanging Ferromagnetic films Ferromagnetic materials magnetic texture magnetization dynamics Magnons MATERIALS SCIENCE micromagnetism Solitary waves spin current spintronics Superfluidity Thin films |
| title | Self-stabilizing exchange-mediated spin transport |
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