Optical manipulation of the magnetic anisotropy is demonstrated for bilayered manganites, La2-2xSr1+2xMn2O7, by means of femtosecond Kerr-rotation measurements. Upon the photoexcitation on the x=0.32 crystal, the magnetization exhibits the precessional motion for about 1 ns, revealing the directional change of the magnetocrystalline anisotropy from the c axis to the ab plane. This change of the anisotropy induces the nonthermal decrease of the c-axis magnetization component for about 1 ns. © 2007 The American Physical Society.
CITATION STYLE
Tomimoto, S., Matsubara, M., Ogasawara, T., Okamoto, H., Kimura, T., & Tokura, Y. (2007). Optical control of the magnetic anisotropy of ferromagnetic bilayered manganites. Physical Review Letters, 98(1). https://doi.org/10.1103/PhysRevLett.98.017402
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