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Spin dynamics of the antiferromagnetic-to-ferromagnetic phase transition in FeRh on a sub-picosecond time scale

Thiele, Jan-Ulrich ; Buess, Matthias ; Back, Christian
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Date of publication of this fulltext: 05 Aug 2009 13:34


Abstract

The antiferromagnetic-to-ferromagnetic phase transition in FeRh films induced by heating with a femtosecond laser pulse was investigated using the time-resolved magneto-optical Kerr effect. An initial rise time of the magneto-optical signal of about 500 fs is found as the FeRh is heated through the transition. The data offer a complementary view to previous pump–probe experiments on "simple" ...

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