Femtosecond photomagnetic switching of spins in ferrimagnetic garnet films
We demonstrate that intense laser pulses can be used to directly control the spins in ferrimagnetic garnet films. Through an ultrafast and nonthermal photomagnetic effect the magnetocrystalline anisotropy is modified to create a new long-lived equilibrium orientation for the magnetization. Simultane...
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| Veröffentlicht in: | Physical review letters 2005-07, Vol.95 (4), p.047402.1-047402.4, Article 047402 |
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| container_end_page | 047402.4 |
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| container_issue | 4 |
| container_start_page | 047402.1 |
| container_title | Physical review letters |
| container_volume | 95 |
| creator | HANSTEEN, Fredrik KIMEL, Alexey KIRILYUK, Andrei RASING, Theo |
| description | We demonstrate that intense laser pulses can be used to directly control the spins in ferrimagnetic garnet films. Through an ultrafast and nonthermal photomagnetic effect the magnetocrystalline anisotropy is modified to create a new long-lived equilibrium orientation for the magnetization. Simultaneously, the magnetization is rotated into this new state by precession in a strong transient optically generated magnetic field. All take place within the 100 fs duration of a single laser pulse, thus demonstrating the feasibility of photomagnetic switching on the femtosecond time scale. |
| doi_str_mv | 10.1103/physrevlett.95.047402 |
| format | Article |
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| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Physics Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter |
| title | Femtosecond photomagnetic switching of spins in ferrimagnetic garnet films |
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