FULL MAGNETIZATION PROCESS AND MAGNETIC PHASE DIAGRAM OF RARE-EARTH FERRIMAGNETS R2Fe14B

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Abstract

Using the example of intermetallic compound Ho2Fe14B and its hydride Ho2Fe14BH1.7 the process of full magnetization of rare-earth ferrimagnets of the R-Fe-B system has been studied. It is shown that in an external magnetic field of megagauss range, these compounds undergo induced orientational transitions from ferrimagnetic to ferromagnetic state. Based on experimental data, the values of critical fields for these transitions were determined. Magnetic phase diagrams in "magnetic field – temperature" variables were theoretically obtained, and R–Fe exchange interactions constants were calculated.

About the authors

N. V. Kostyuchenko

Lebedev Physical Institute of the Russian Academy of Sciences; Moscow Institute of Physics and Technology

Email: nvkost@gmail.com
Russian Federation, Moscow, 119991 ;Dolgoprudny, Moscow Region, 141701

D. I. Plokhov

Lebedev Physical Institute of the Russian Academy of Sciences; Prokhorov General Physics Institute of the Russian Academy of Sciences; Patrice Lumumba Peoples' Friendship University of Russia

Email: dmitry@plokhov.ru
Russian Federation, Moscow, 119991; Moscow, 119991; Moscow, 117198

I. S. Tereshina

Lebedev Physical Institute of the Russian Academy of Sciences; Physics Faculty of Lomonosov Moscow State University

Email: nvkost@gmail.com
Russian Federation, Moscow, 119991; Moscow, 119991

G. A. Politova

Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University

Email: nvkost@gmail.com
Russian Federation, Moscow, 119334; St. Petersburg, 195251

Yu. B. Kudasov

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

V. V. Platonov

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

O. M. Surdin

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

D. A. Maslov

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

I. S. Strelkov

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

R. V. Kozabaranov

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

P. Yu. Katenkov

Russian Federal Nuclear Center (RFNC-VNIIEF); Sarov Physics and Technology Institute of National Research Nuclear University MEPhI

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188; Sarov, 607186

A. S. Korshunov

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

I. V. Makarov

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

A. I. Bykov

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

A. V. Filippov

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

E. A. Bychkova

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

P. B. Repin

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

V. D. Selemir

Russian Federal Nuclear Center (RFNC-VNIIEF)

Email: nvkost@gmail.com
Russian Federation, Sarov, 607188

A. A. Gorbatsevich

Lebedev Physical Institute of the Russian Academy of Sciences

Email: nvkost@gmail.com
Russian Federation, Moscow, 119991

A. K. Zvezdin

Lebedev Physical Institute of the Russian Academy of Sciences; Prokhorov General Physics Institute of the Russian Academy of Sciences

Author for correspondence.
Email: nvkost@gmail.com
Russian Federation, Moscow, 119991; Moscow, 119991

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