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Federal Research Center 
"Krasnoyarsk Science Center of the Siberian
Branch of the Russian Academy of Sciences"

 Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук»

Federal Research Center 
"Krasnoyarsk Science Center of the Siberian
Branch of the Russian Academy of Sciences"

The supervisor of the megagrant told about the future of magnetic cooling

19 March 2020 г.

Руководитель мегагранта рассказал про будущее магнитного охлаждения
As part of the megagrant of the Government of the Russian Federation, a new laboratory has been established at the L.V. Kirensky Institute of Physics of the Krasnoyarsk Scientific Center SB RAS for the synthesis and study of promising nanostructures with controlled properties - MAX phases. Such nanolayer materials are promising for energy conversion.

The Laboratory of Magnetic MAX Materials is headed by Michael Farle, Ph.D., professor, chairman of the Magnetism Section of the German Physical Society. Professor M.Farle is known as one of the leading researchers in the field of magnetism.
At a physical seminar held in early March, during his visit to Krasnoyarsk, the head of the laboratory presented the objectives of the project for the next two years. The list of priority tasks includes the creation and study of the properties of new superconducting and magnetic MAX-materials. Such compounds always consist of three components (layers): M - transition metal, A - element of group A, and X - carbon or nitrogen.

“One of the areas where MAX-phase materials are used includes permanent magnets for electric motors, wind generators, and magnetic shielding. Another promising area for the use of MAX-phases is magnetic cooling. The technology is based on the ability of any magnetic material to change its temperature and entropy under the influence of a magnetic field, as it happens when gas is compressed or expanded in traditional refrigerators. In Siberia, there are no problems with cooling; however, in India or Africa this is a very urgent problem. People’s needs are growing exponentially; they want to live in comfortable homes with air conditioning. The same applies to server and data centers - they also need to be intensively cooled, ” explains  Michael Farle.

In the new laboratory, Krasnoyarsk physicists will be engaged in the synthesis of thin films of MAX-materials with certain controlled properties. As a result, magnetic and superconducting samples will be obtained. This will allow one to program their characteristics at the creation stage and apply them for specific needs.

“The future lies with MAX-materials,- says Michael Farle, - otherwise, I would not do that. But, like many scientists, I think not only about the practical applications of my work. Contribution to basic research is also important. Applied tasks are solved thanks to fundamental discoveries. We will create our own high-vacuum spraying system with very wide capabilities, which will add even more complexity to these already multifunctional materials and will become an important point in our work.”

There may be hundreds of different combinations of components which make up layered MAX-materials. Over the next two years, physicists are to synthesize and verify the magnetic properties of certain compounds which include chromium, germanium, galium, manganese, carbon, and other elements. The first results of the megagrant are anticipated this winter.