scholarly journals Enhancement of the Gilbert damping constant due to spin pumping in noncollinear ferromagnet/nonmagnet/ferromagnet trilayer systems

2007 ◽  
Vol 76 (9) ◽  
Author(s):  
Tomohiro Taniguchi ◽  
Hiroshi Imamura
Keyword(s):  
Gilbert Damping ◽  
Spin Pumping

Gilbert Damping in Annealed Perpendicular Exchange Biased CoFeB/Pt/MnIr Multilayers

SPIN ◽  
2020 ◽  
Vol 10 (01) ◽  
pp. 2050008
Author(s):  
Hai-Lin Hu ◽  
Jia-Qi Yan ◽  
Wei Li ◽  
Xiao-Yu Yang ◽  
Shi-Tao Lou ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Gilbert Damping ◽  
Time Resolved ◽  
Pump Probe ◽  
Spin Pumping ◽  
Pulsed Dc ◽  
Pulsed Dc Magnetron Sputtering ◽  
Different Thickness

Exchange bias and intrinsic Gilbert damping [Formula: see text] are two important parameters in magnetic multilayers. To explore the correlation between exchange coupling and damping, the samples Ta (2.6[Formula: see text]nm)/Pt (2.5[Formula: see text]nm)/Co[Formula: see text]Fe[Formula: see text]B[Formula: see text] (0.63[Formula: see text]nm)/Pt (0.5[Formula: see text]nm)/Mn[Formula: see text]Ir[Formula: see text] ([Formula: see text])/Ta (4[Formula: see text]nm) are deposited by using pulsed-DC magnetron sputtering. The static and dynamic magnetic responses with different thickness of antiferromagnetic MnIr are investigated using vibrating sample magnetometer (VSM) and the pump-probe time-resolved magneto-optical Kerr effect (TR-MOKE). The exchange bias initially increases and then decreases with increasing thickness of MnIr layer, which is associated with the interfacial exchange coupling. The dynamic results demonstrate that the Gilbert damping of CoFeB/Pt/MnIr can increase by up to 40% compared with CoFeB/Pt. Based on the fact that the spin pumping has been excluded because of the Pt interlayer, we attribute the enhancement in Gilbert damping to the exchange coupling between AFM and FM.

scholarly journals Nearly isotropic spin-pumping related Gilbert damping in Pt/Ni81Fe19/Pt

2019 ◽  
Vol 99 (9) ◽  
Author(s):  
W. Cao ◽  
L. Yang ◽  
S. Auffret ◽  
W. E. Bailey
Keyword(s):  
Gilbert Damping ◽  
Spin Pumping ◽  
Isotropic Spin

scholarly journals Spin pumping in ion-beam sputtered Co2FeAl/Mo bilayers: Interfacial Gilbert damping

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Sajid Husain ◽  
Ankit Kumar ◽  
Vineet Barwal ◽  
Nilamani Behera ◽  
Serkan Akansel ◽  
...  
Keyword(s):  
Ion Beam ◽  
Gilbert Damping ◽  
Spin Pumping

Temperature dependence of spin pumping and Gilbert damping in thin Co/Pt bilayers

2016 ◽  
Vol 28 (5) ◽  
pp. 056004 ◽  
Author(s):  
T G A Verhagen ◽  
H N Tinkey ◽  
H C Overweg ◽  
M van Son ◽  
M Huber ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Gilbert Damping ◽  
Spin Pumping

scholarly journals Temperature dependence of Gilbert damping in manganite/normal metal heterostructure

2018 ◽  
Vol 185 ◽  
pp. 02007
Author(s):  
Timur A. Shcaihulov ◽  
Victor V. Demidov ◽  
Igor V. Borisenko ◽  
Gennady A. Ovsyannikov
Keyword(s):  
Temperature Dependence ◽  
Ferromagnetic Resonance ◽  
Ferromagnetic Layer ◽  
Spin Current ◽  
Liquid Nitrogen Temperature ◽  
Gilbert Damping ◽  
Spin Pumping ◽  
Manganite Film ◽  
Ferromagnetic Resonance Spectrum ◽  
Lower Liquid

The temperature dependence of the spin-pumping effect on the Gilbert damping in a bilayer based on epitaxial manganite film grown on neodymium galate substrate was investigated by measuring of the linewidth of the ferromagnetic resonance spectrum (FMR). Ferromagnetic resonance in thin ferromagnetic manganite La0.7Sr0.3MnO3 (LSMO) films is used to produce a spin current at the interface between a metallic and a ferromagnetic layer. Pt/LSMO/NGO, Au/LSMO/NGO and LSMO/NGO heterostrucutres were measured. An increase of the linewidth in FMR spectrum at the temperature lower liquid nitrogen temperature (77K) is observed .

scholarly journals Isotropic non-local Gilbert damping driven by spin pumping in epitaxial Pd/Fe films on MgO(001) substrates

2019 ◽  
Vol 21 (10) ◽  
pp. 103040 ◽  
Author(s):  
Y Li ◽  
Y Li ◽  
Q Liu ◽  
Z K Xie ◽  
E Vetter ◽  
...  
Keyword(s):  
Gilbert Damping ◽  
Spin Pumping ◽  
Non Local
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