Optical excitation of antiferromagnetic resonance in TmFeO3
Journal Title: Physical Review B: Condensed Matter and Materials Physics - Year 2006, Vol 74, Issue 60403
Abstract
Femtosecond laser pulses are observed to excite antiferromagnetic resonances in TmFeO3 via both thermal and nonthermal mechanisms. These mechanisms dominate in two different temperature ranges. The analysis shows that thermally and nonthermally triggered spin oscillations have different frequencies. The experimental data reveal that femtosecond laser excitation results in frequency changes of the antiferromagnetic resonance within 1 ps, demonstrating the feasibility of ultrafast frequency modulation
Authors and Affiliations
A. Kimel, C. Stanciu, P. Usachev, R. Pisarev, V. Gridnev, Th Rasing
Keywords
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Optical excitation of antiferromagnetic resonance in TmFeO3
Femtosecond laser pulses are observed to excite antiferromagnetic resonances in TmFeO3 via both thermal and nonthermal mechanisms. These mechanisms dominate in two different temperature ranges. The analysis shows that th...