scholarly journals Frequency Shift and Damping Constant of Spin Waves in a Heisenberg Ferrimagnet with Uniaxial Anisotropy

1971 ◽  
Vol 46 (3) ◽  
pp. 675-687 ◽  
Author(s):  
Makoto Takemura ◽  
Kensuke Tani
Keyword(s):  
Frequency Shift ◽  
Spin Waves ◽  
Uniaxial Anisotropy

The energy bands of quantized spin waves and the uniaxial anisotropy in a biferromagnetic system

2010 ◽  
Vol 78 (1) ◽  
pp. 111-117
Author(s):  
X. J. Hou ◽  
G. H. Yun ◽  
Y. H. Bai ◽  
N. Bai ◽  
W. P. Zhou
Keyword(s):  
Spin Waves ◽  
Uniaxial Anisotropy ◽  
Energy Bands

scholarly journals Frequency shift of spin waves in tunnel-junction spin-transfer nano-oscillators

2010 ◽  
Vol 82 (13) ◽  
Author(s):  
R. L. Rodríguez-Suárez ◽  
A. Matos-Abiague ◽  
A. Azevedo ◽  
S. M. Rezende
Keyword(s):  
Frequency Shift ◽  
Tunnel Junction ◽  
Spin Waves ◽  
Spin Transfer

scholarly journals Switchable giant nonreciprocal frequency shift of propagating spin waves in synthetic antiferromagnets

2020 ◽  
Vol 6 (17) ◽  
pp. eaaz6931 ◽  
Author(s):  
Mio Ishibashi ◽  
Yoichi Shiota ◽  
Tian Li ◽  
Shinsaku Funada ◽  
Takahiro Moriyama ◽  
...  
Keyword(s):  
Frequency Shift ◽  
Spin Wave ◽  
Spin Waves ◽  
Wave Dispersion ◽  
Dipolar Interaction ◽  
Logic Circuits ◽  
Relative Configuration ◽  
Magnetic Layers ◽  
The Difference ◽  
Interlayer Exchange

The nonreciprocity of propagating spin waves, i.e., the difference in amplitude and/or frequency depending on the propagation direction, is essential for the realization of spin wave–based logic circuits. However, the nonreciprocal frequency shifts demonstrated so far are not large enough for applications because they originate from interfacial effects. In addition, switching of the spin wave nonreciprocity in the electrical way remains a challenging issue. Here, we show a switchable giant nonreciprocal frequency shift of propagating spin waves in interlayer exchange–coupled synthetic antiferromagnets. The observed frequency shift is attributed to large asymmetric spin wave dispersion caused by a mutual dipolar interaction between two magnetic layers. Furthermore, we find that the sign of the frequency shift depends on relative configuration of two magnetizations, based on which we demonstrate an electrical switching of the nonreciprocity. Our findings provide a route for switchable and highly nonreciprocal spin wave–based applications.

scholarly journals The eigenvalues of quantized spin waves and theeffect of the uniaxial anisotropy

2011 ◽  
Vol 60 (5) ◽  
pp. 056805
Author(s):  
Hou Xiao-Juan ◽  
Yun Guo-Hong ◽  
Bai Yu-Hao ◽  
Bai Narsu ◽  
Zhou Wen-Ping
Keyword(s):  
Spin Waves ◽  
Uniaxial Anisotropy
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