D. O. Krivulin, I. Yu. Pashenkin, R. V. Gorev, P. A. Yunin, M. V. Sapozhnikov, A. V. Grunin, S. A. Zakharova, V. N. Leontiev
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引用次数: 0
Abstract
In this work, the effect of the action of gamma quanta and neutrons on the magnetic properties of Ta/feromagnet/IrMn/Ta bilayer films with an exchange bias of the hysteresis loop is studied. The samples were fabricated by magnetron sputtering, and their structure was studied by small-angle X-ray reflectometry and X-ray diffractometry. The measurement of the magnetic hysteresis loops of the irradiated and non-irradiated samples was carried out by the methods of magneto-optical Kerr magnetometry. As a result, the effect of broadening of the magnetic hysteresis loop after irradiation was found. The maximum broadening of the hysteresis loop was observed in the NiFe/IrMn film under neutron irradiation; in this case, the loop width increased by more than 2.5 times. No noticeable change in the field of the exchange bias of the hysteresis loops was observed in the entire range of radiation exposure.
本文研究了伽马量子和中子的作用对具有磁滞回线交换偏置的钽/铁磁体/铁锰/钽双层薄膜磁性能的影响。样品是通过磁控溅射法制作的，其结构是通过小角 X 射线反射仪和 X 射线衍射仪研究的。利用磁光克尔磁力计的方法测量了辐照和非辐照样品的磁滞回线。结果发现了辐照后磁滞回线变宽的影响。在中子辐照下，NiFe/IrMn 薄膜的磁滞回线展宽最大；在这种情况下，磁滞回线宽度增加了 2.5 倍以上。在整个辐照范围内，磁滞环的交换偏置场没有发生明显变化。
期刊介绍：
Technical Physics is a journal that contains practical information on all aspects of applied physics, especially instrumentation and measurement techniques. Particular emphasis is put on plasma physics and related fields such as studies of charged particles in electromagnetic fields, synchrotron radiation, electron and ion beams, gas lasers and discharges. Other journal topics are the properties of condensed matter, including semiconductors, superconductors, gases, liquids, and different materials.
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