High-coercivity hexaferrite ceramics featuring sub-terahertz ferromagnetic resonance

Author:

Gorbachev Evgeny A.123ORCID,Trusov Lev A.23ORCID,Alyabyeva Liudmila N.2ORCID,Roslyakov Ilya V.124,Lebedev Vasily A.5ORCID,Kozlyakova Ekaterina S.6ORCID,Magdysyuk Oxana V.7,Sobolev Alexey V.2,Glazkova Iana S.2,Beloshapkin Sergey A.5,Gorshunov Boris P.2,Kazin Pavel E.2ORCID

Affiliation:

1. Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia

2. Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia

3. Department of Materials Science, MSU-BIT University, Shenzhen, Guangdong Province 517182, P. R. China

4. Kurnakov Institute of General and Inorganic Chemistry RAS, Moscow 119991, Russia

5. Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland

6. Department of Physics, Lomonosov Moscow State University, Moscow 119991, Russia

7. Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK

Abstract

Dense ceramics were obtained by annealing single-domain Al-doped hexaferrite particles. The materials possess giant coercivities and natural ferromagnetic resonance at 160–280 GHz. A large blueshift of the ferromagnetic resonance frequency was found.

Funder

Russian Foundation for Basic Research

Russian Science Foundation

Ministry of Education and Science of the Russian Federation

Publisher

Royal Society of Chemistry (RSC)

Subject

Electrical and Electronic Engineering,Process Chemistry and Technology,Mechanics of Materials,General Materials Science

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