Dynamics of the coercivity in ultrafast pump–probe experiments
Dynamics of the coercivity in ultrafast pump–probe experiments
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DOI：
10.1088/0022-3727/41/16/164001
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
T. Roth;D. Steil;D. Hoffmann;M. Bauer;M. Cinchetti;M. Aeschlimann
中科院分区：
文献类型：
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作者：
T. Roth;D. Steil;D. Hoffmann;M. Bauer;M. Cinchetti;M. Aeschlimann
In this paper we devote ourselves to the coercivity as a measured variable in femtosecond magnetism. We stress the fact that an all optical pump–probe technique is in general not suitable to gain access to the time-dependent behaviour of the coercivity, since the switching in a fixed external field is an irreversible process. We comment on the possible mechanisms leading to the observed reduction in the coercivity with increasing pump power and propose a potential solution to clarify the origin of such behaviour.
