D. A. Suslov, P. M. Vetoshko, A. V. Mashirov, S. N. Polulyakh, V. N. Berzhansky, V. G. Shavrov
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引用次数: 0
摘要
摘要 为研究具有磁补偿点的铁磁性薄膜中的非共轭相，我们开发了一种技术，并制作了一套实验装置，用于利用磁光对比观察铁磁性薄膜中的相变。这种带有超导磁体的装置的独特之处在于存在一个可控的横向温度梯度，可利用磁光方法同时观测铁磁性薄膜在磁场和温度范围内的各种相态。利用所开发的装置，可以在 0 到 10 T 的磁场范围和 150 到 400 K 的温度范围内观察到稀土石榴石铁氧体的不同磁有序区。
Magneto-Optical Method for Observing the Phases of Magnetic Ordering in Rare Earth Ferrite Films Using a Compensating Point
Abstract
For the purpose of studying the noncollinear phase in ferrimagnetic films with a magnetic compensation point, a technique has been developed and an experimental setup has been fabricated for observing phase transitions in ferrimagnetic films using magneto-optical contrast. The unique feature of the setup with a superconducting magnet is the presence of a controllable lateral temperature gradient that allows simultaneous observation of various phase states in ferrimagnetic films in the range of magnetic fields and temperatures using the magneto-optical method. Using the developed setup, zones of different magnetic ordering were observed for rare earth garnet ferrites in the range of magnetic fields from 0 to 10 T and temperatures from 150 to 400 K. The lateral temperature gradient in the film plane could be varied from 0 to 12 K. Different phases of the first-order spin-reorientation transition were observed in films with a composition of (BiYGd)3(FeGa)5O12 using this technique.
期刊介绍：
Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.
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