Melting of magnetic order in NaOsO3 by femtosecond laser pulses
Melting of magnetic order in NaOsO3 by femtosecond laser pulses
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DOI：
10.1103/physrevb.105.155147
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发表时间：
2022-04
影响因子：
3.7
通讯作者：
F. Giorgianni;Max Burian;N. Gurung;M. Kubli;V. Esposito;U. Staub;P. Beaud;S. Johnson;Y. W. Windsor;Laurenz Rettig;D. Ozerov;H. Lemke;Susmita Saha;F. Pressacco;S. Collins;T. Togashi;T. Katayama;S. Owada;M. Yabashi;K. Yamaura;Yoshikazu Tanaka;V. Scagnoli
中科院分区：
文献类型：
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作者：
F. Giorgianni;Max Burian;N. Gurung;M. Kubli;V. Esposito;U. Staub;P. Beaud;S. Johnson;Y. W. Windsor;Laurenz Rettig;D. Ozerov;H. Lemke;Susmita Saha;F. Pressacco;S. Collins;T. Togashi;T. Katayama;S. Owada;M. Yabashi;K. Yamaura;Yoshikazu Tanaka;V. Scagnoli
最近因其电子能带结构和磁有序之间的强耦合而引起了人们的广泛关注。在这里，我们使用时间分辨磁 X 射线衍射来确定光感反铁磁动力学的时间尺度。我们的测量结果与反铁磁长程有序的亚 100 fs 熔化一致，其发生速度明显快于晶格动力学，如通过所选布拉格结构反射强度的瞬态变化监测的，相反，在几个 ps 的时间尺度上显示强度的降低。
has recently attracted significant attention for the strong coupling between its electronic band structure and magnetic ordering. Here, we used time-resolved magnetic x-ray diffraction to determine the timescale of the photoinduced antiferromagnetic dynamics in. Our measurements are consistent with a sub-100 fs melting of the antiferromagnetic long-range order that occurs significantly faster than the lattice dynamics as monitored by the transient change in intensity of selected Bragg structural reflections, which instead show a decrease of intensity on a timescale of several ps.