Layer selective determination of magnetization vector configurations in an epitaxial double spin valve structure: Si(001)/Cu/Co/Cu/FeNi/Cu/Co/Cu

2000 ◽  
Vol 77 (6) ◽  
pp. 892-894 ◽  
Author(s):  
B. C. Choi ◽  
A. Samad ◽  
C. A. F. Vaz ◽  
J. A. C. Bland ◽  
S. Langridge ◽  
...  
Keyword(s):  
Spin Valve ◽  
Magnetization Vector ◽  
Selective Determination ◽  
Double Spin ◽  
Valve Structure

Layer selective magnetic moment distribution in an epitaxial double spin valve structure: Si[001]/Cu

1999 ◽  
Vol 35 (5) ◽  
pp. 3847-3849 ◽  
Author(s):  
B.C. Choi ◽  
A. Samad ◽  
W.Y. Lee ◽  
S. Langridge ◽  
J. Penfold ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Spin Valve ◽  
Double Spin ◽  
Moment Distribution ◽  
Valve Structure

scholarly journals Частота и быстродействие спинового вентиля с планарной анизотропией слоев

2020 ◽  
Vol 62 (9) ◽  
pp. 1361
Author(s):  
Ю.А. Юсипова
Keyword(s):  
Spin Valve ◽  
Practical Interest ◽  
Magnetization Vector ◽  
Magnetization Dynamics ◽  
Operating Modes ◽  
Read Head ◽  
Ferromagnetic Layers ◽  
Valve Structure ◽  
Switching Characteristics ◽  
Layered Spin

The dynamics of the magnetization vector in the free layer of a layered spin-valve structure was simulated. As materials for the free and fixed layers, six magnetically soft ferromagnets with longitudinal anisotropy were considered. The types of magnetization dynamics that are of practical interest for MRAM and HMDD (switching of the magnetization vector), STNO (stable precession of the magnetization vector), and the base element PSL (switching of the magnetization vector with two probable outcomes) were highlighted. The ranges of currents and fields corresponding to these operating modes of the spin valve were calculated. The numerical calculations of the switching time showed that, among the considered materials for the MRAM cell, the most suitable is Co80Gd20 alloy, while for the HMDD read head, it is Fe60Co20B20. As a result of the precession frequency calculations, it was concluded that the Fe60Co20B20 alloy is optimal for the STNO ferromagnetic layers. For the implementation of PSL, the best switching characteristics were demonstrated by the Co93Gd7 alloy.

Layer-dependent magnetic-moment distribution in an epitaxial double spin valve structure: Si(001)/Cu/FeNi/Cu/Co/Cu/FeNi/Cu

1999 ◽  
Vol 60 (10) ◽  
pp. 7304-7308 ◽  
Author(s):  
A. Samad ◽  
B. C. Choi ◽  
S. Langridge ◽  
J. Penfold ◽  
J. A. C. Bland
Keyword(s):  
Magnetic Moment ◽  
Spin Valve ◽  
Double Spin ◽  
Moment Distribution ◽  
Valve Structure

Laser optoacoustic detection of trace concentration levels of ethylene, vinylchloride, and styrene in the atmosphere

1989 ◽  
Vol 54 (10) ◽  
pp. 2667-2673 ◽  
Author(s):  
Vojtěch Steiner ◽  
Pavel Engst ◽  
Zdeněk Zelinger ◽  
Milan Horák
Keyword(s):  
Detection Limit ◽  
Emission Line ◽  
Laser Line ◽  
Laser Source ◽  
Trace Concentration ◽  
Selective Determination ◽  
Hygienic Standard ◽  
Trace Concentrations ◽  
Concentration Levels

The optoacoustic analyzer with a tunable CO2 laser source employed in the present work permits a selective determination of ethylene in trace concentrations higher than 5 ppb (=detection limit for the 10P(14) emission line of the CO2 laser, ν = 949.5 cm-1) and of vinylchloride higher than 42 ppb (= detection limit for the 10P(22) CO2 laser line, ν= 942.4 cm-1). this method covers for both compounds the concentration range corresponding to the hygienic standard. It can be also used for the determination of styrene vapour with concentrations higher than 1.5 ppm.

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