Simple theory of exchange coupling in transition-metal magnetic multilayers

1991 ◽  
Vol 44 (11) ◽  
pp. 5977-5980 ◽  
Author(s):  
D. M. Deaven ◽  
D. S. Rokhsar ◽  
M. Johnson
Keyword(s):  
Transition Metal ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Simple Theory

Effect of Hybridization on Exchange Coupling in Magnetic Multilayers

1993 ◽  
Vol 313 ◽  
Author(s):  
J. Mathon ◽  
M.A. Villeret ◽  
J.M. Mander ◽  
D.M. Edwards ◽  
R.B. Muniz
Keyword(s):  
Transition Metal ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Size Quantization ◽  
Conduction Electrons ◽  
Long Period ◽  
Oscillatory Coupling

ABSTRACTAn earlier theory of the exchange coupling between two ferromagnets separated by a nonmagnetic transition metal spacer was based on size quantization of the electron energies in the spacer. It is now generalized to include the effect of hybridization between the conduction and d bands both in the ferromagnet and in the spacer. The new theory thus unifies the approach based on coupling via d electrons, valid for transition metal spacers, with RKKY-type theories for noble and simple metals which rely on coupling via conduction electrons. The theory is applied to calculate the period and strength of the long-period oscillatory coupling in (001) CO/Cu trilayer.

Exchange Coupling of Transition-Metal Ions through Hydrogen Bonding:  A Theoretical Investigation

2002 ◽  
Vol 124 (18) ◽  
pp. 5197-5205 ◽  
Author(s):  
Cédric Desplanches ◽  
Eliseo Ruiz ◽  
Antonio Rodríguez-Fortea ◽  
Santiago Alvarez
Keyword(s):  
Hydrogen Bonding ◽  
Transition Metal ◽  
Metal Ions ◽  
Theoretical Investigation ◽  
Exchange Coupling ◽  
Transition Metal Ions

scholarly journals FREE ELECTRON MODEL STUDY ON INTERLAYER EXCHANGE COUPLING IN MAGNETIC MULTILAYERS

1996 ◽  
Vol 45 (5) ◽  
pp. 869
Author(s):  
YANG GUO-LIN ◽  
LI BO-ZANG ◽  
LI LIE-MING ◽  
SUN GANG ◽  
WU JIAN-HUA ◽  
...  
Keyword(s):  
Free Electron ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Interlayer Exchange Coupling ◽  
Electron Model ◽  
Model Study ◽  
Free Electron Model ◽  
Interlayer Exchange

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.

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