Concurrent variation of giant magnetoresistance and saturation Kerr rotation in NiCo/Cu multilayers

1998 ◽  
Vol 72 (25) ◽  
pp. 3371-3373 ◽  
Author(s):  
J. Du ◽  
L. N. Tong ◽  
M. Lu ◽  
K. Xia ◽  
M. H. Pan ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Kerr Rotation ◽  
Concurrent Variation

MAGNETIC PROPERTIES AND KERR ROTATION IN AMORPHOUS Ce-Fe AND Pr-Fe ALLOYS

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-650-C8-653 ◽  
Author(s):  
K. H.J. Buschow ◽  
P. G. Van Engen
Keyword(s):  
Magnetic Properties ◽  
Kerr Rotation ◽  
Fe Alloys

Giant Magnetoresistance Properties in CoFe/Cu Multilayers

1998 ◽  
Vol 22 (4_2) ◽  
pp. 537-540 ◽  
Author(s):  
Y. Seyama ◽  
M. Iijima ◽  
A. Tanaka ◽  
M. Oshiki
Keyword(s):  
Giant Magnetoresistance

Introduction of spin torques

2017 ◽  
Author(s):  
T. Kimura
Keyword(s):  
Angular Momentum ◽  
Giant Magnetoresistance ◽  
Spontaneous Magnetization ◽  
Magnetic Domain ◽  
Magnetic Multilayers ◽  
Transfer Effect ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Spin Angular Momentum ◽  
Spin Torques

This chapter discusses the spin-transfer effect, which is described as the transfer of the spin angular momentum between the conduction electrons and the magnetization of the ferromagnet that occurs due to the conservation of the spin angular momentum. L. Berger, who introduced the concept in 1984, considered the exchange interaction between the conduction electron and the localized magnetic moment, and predicted that a magnetic domain wall can be moved by flowing the spin current. The spin-transfer effect was brought into the limelight by the progress in microfabrication techniques and the discovery of the giant magnetoresistance effect in magnetic multilayers. Berger, at the same time, separately studied the spin-transfer torque in a system similar to Slonczewski’s magnetic multilayered system and predicted spontaneous magnetization precession.

scholarly journals Ultrafast non-excitonic valley Hall effect in MoS2/WTe2 heterobilayers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jekwan Lee ◽  
Wonhyeok Heo ◽  
Myungjun Cha ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantitative Information ◽  
Exciton Energy ◽  
Electron Hole ◽  
Kerr Rotation ◽  
Polarized Electrons ◽  
Spatially Resolved ◽  
Long Valley ◽  
Bound Electron ◽  
Valley Hall Effect

AbstractThe valley Hall effect (VHE) in two-dimensional (2D) van der Waals (vdW) crystals is a promising approach to study the valley pseudospin. Most experiments so far have used bound electron-hole pairs (excitons) through local photoexcitation. However, the valley depolarization of such excitons is fast, so that several challenges remain to be resolved. We address this issue by exploiting a unipolar VHE using a heterobilayer made of monolayer MoS2/WTe2 to exhibit a long valley-polarized lifetime due to the absence of electron-hole exchange interaction. The unipolar VHE is manifested by reduced photoluminescence at the MoS2 A exciton energy. Furthermore, we provide quantitative information on the time-dependent valley Hall dynamics by performing the spatially-resolved ultrafast Kerr-rotation microscopy; we find that the valley-polarized electrons persist for more than 4 nanoseconds and the valley Hall mobility exceeds 4.49 × 103 cm2/Vs, which is orders of magnitude larger than previous reports.

Effect of the number of layers on determination of spin asymmetries in current-perpendicular-to-plane giant magnetoresistance

2011 ◽  
Vol 98 (4) ◽  
pp. 042503 ◽  
Author(s):  
Tomohiro Taniguchi ◽  
Hiroshi Imamura ◽  
Tomoya M. Nakatani ◽  
Kazuhiro Hono
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Asymmetries ◽  
Number Of Layers ◽  
Current Perpendicular To Plane

scholarly journals Giant Magnetoresistance and Low Saturation Fields in Ni–Fe–Co/Cu Multilayers with NiO Buffer Layers

1996 ◽  
Vol 37 (11) ◽  
pp. 1710-1714 ◽  
Author(s):  
Ryoichi Nakatani ◽  
Katsumi Hoshino ◽  
Hiroyuki Hoshiya ◽  
Yutaka Sugita
Keyword(s):  
Giant Magnetoresistance ◽  
Buffer Layers
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