Hysteresis and control of ferromagnetic resonances in rings
Hysteresis and control of ferromagnetic resonances in rings
复制标题
环中铁磁共振的磁滞和控制
DOI：
10.1063/1.1886247
复制
发表时间：
2005
影响因子：
4
通讯作者：
D. Grundler
中科院分区：
文献类型：
--
作者：
F. Giesen;J. Podbielski;T. Korn;M. Steiner;A. V. Staa;D. Grundler
在45 MHz到20 GHz的频率范围内，研究了室温下窄铁磁环中的自旋动力学。我们的宽带光谱仪使我们能够监测作为外场μ0H的函数的特征自旋组态的铁磁共振。我们观察到共振频率的滞后和不可逆跳跃，我们将其归因于洋葱到涡旋和涡旋到反向洋葱的转变。
The spin dynamics in narrow ferromagnetic rings is studied in the frequency range from 45MHzto20GHz at room temperature. Our broadband spectrometer allows us to monitor the ferromagnetic resonance of characteristic spin configurations as a function of an external field μ0H. We observe hysteresis and irreversible jumps of the resonance frequencies which we attribute to onion-to-vortex and vortex-to-reversed-onion transitions.