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V. A. Seredkin S. V. Stolyar G. I. Frolov V. Yu. Yakovchuk 《Technical Physics Letters》2004,30(10):820-822
A new principle of data writing and erasing is proposed based on the exchange coupling between magnetic layers with mutually
orthogonal orientations of the effective magnetization. The new method provides for a significant decrease in energy consumption.
The possibility of using bilayer magnetic films of the (rare earth metal-transition metal)/NiFe type possessing unidirectional
anisotropy as the media for thermomagnetic writing and erasing of magnetooptical data is studied. 相似文献
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Dependence of the magnetic and magnetooptical properties of an exchange-coupled NiFe/DyCo bilayer system on the thickness (t DyCo) of a magnetically hard layer has been studied. It is established that the unidirectional anisotropy vanishes at t DyCo ~ 400 Å, while the coercive field in the magnetically soft layer becomes comparable to the exchange-induced field shift. In this case, the DyCo layer magnetization is almost parallel to the film plane, whereas a reference DyCo film exhibits a perpendicular anisotropy. A model of the magnetic state of layers in the ferro/ferrimagnetic layer structure under consideration is proposed, which assumes that a 180° domain wall is formed at the interface upon magnetization reversal in the magnetically soft layer. 相似文献
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Patrin G. S. Yakovchuk V. Yu. Yarikov S. A. Shiyan Ya. G. Furdyk V. P. 《Technical Physics Letters》2019,45(5):507-510
Technical Physics Letters - Results of the experimental investigation of two-layer films in the Fe–Bi system are presented. It is found that the order of sequential deposition of the magnetic... 相似文献
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K. Yu. Yakovchuk Yu. É. Rudoi E. V. Onoprienko V. G. Malysheva 《Strength of Materials》2010,42(3):352-361
We discuss the effect of diffusion heat-resistant and condensation gradient thermal barrier coatings used for protection of
gas turbine disk operating blades on mechanical characteristics (long- and short-term durability and plasticity at temperature
of 1000°C) of specimens from ZhS32-VI heat-resistant alloy. We study the effect of isothermal annealing in air at temperature
1100°C during 240 h on mechanical characteristics of uncoated and coated specimens. We note the expediency of application
of gradient thermal barrier coating consisting from external heat-insulating ceramic layer and thermostable heat-resistant
metal layer, which provide temperature reduction of metal walls of cooled blades made from ZhS32-VI heat-resistant alloy with
the purpose of achieving the required residual life. 相似文献
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V. G. Permyakov Yu. E. Yakovchuk V. T. Cherepin T. V. Amirkhanova Yu. P. Maifet 《Metal Science and Heat Treatment》1973,15(3):251-253
Conclusions In the process of boriding, silicon is forced into the transition zone and has an inhibiting effect on the growth of the high-boron phase (FeB) and the layer of borides, leading to a change in the phase composition of this zone.Kiev Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 67–68, March, 1973. 相似文献
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R. S. Iskhakov V. A. Seredkin S. V. Stolyar V. Yu. Yakovchuk G. I. Frolov G. V. Bondarenko L. A. Chekanova V. V. Polyakov 《Technical Physics Letters》2008,34(7):577-580
The dependence of the unidirectional anisotropy in a DyCo/NiFe bilayer system on the thickness of the magnetically soft layer
has been studied using dynamic and static techniques. The magnitude of the exchange interaction between layers evaluated using
the ferromagnetic resonance method is two times that determined from an analysis of the hysteresis loops. It is established
that this difference is related to features of the magnetic microstructure of the DyCo layer. 相似文献