Ferrimagnetic Materials: State of the Art and Future Perspectives

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Materials".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 1979

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Department of Physics, University of Bordeaux, CEDEX, 33405 Talence, France
Interests: statistical quantum field theory; lattice models in statistical physics; magnetic phase transitions; electronic paramagnetic resonance (EPR); magnetic nanoparticles
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Special Issue Information

Dear Colleagues,

Since the beginning of the 1990s, with the introduction of organic lig­ands between magnetic cations, magnetochemistry has seen significant development. This molecular “do it yourself kit’’ has allowed us to synthetize new ferrimagnets (initially considered by Néel to be exclusive anti­ferromagnets). As a result, through the full control of their micro­scopic magnetic properties, it is now possible to impose the ferromag­netic or antiferromagnetic character of ex­change energy, the magni­tude of the magnetic moment per site, the dimen­sionality of spin lattices (1d, 2d or 3d), transport properties, notably in the field of molecular elec­tronics and magnetic semiconductors, but also the hysteresis pheno­me­non important for industrial applications. Simultaneously, new theo­reti­cal modeling challenges have emerged.

Dr. Jacques Curély
Guest Editor

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  • Ferrimagnetism
  • antiferromagnetism
  • ferromagnetism
  • Heisenberg couplings
  • Ising (z–z) couplings
  • x–y couplings
  • insulator
  • magnetic semiconductor
  • molecular electronics

Published Papers (1 paper)

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9 pages, 2542 KiB  
Magnetic Properties of a Solid Solution Fe1−xAgxCr2S4 (0 < x < 0.2)
by Galina G. Shabunina, Elena V. Busheva, Pavel N. Vasilev and Nikolay N. Efimov
Magnetochemistry 2022, 8(10), 112; https://doi.org/10.3390/magnetochemistry8100112 - 21 Sep 2022
Cited by 2 | Viewed by 1478
The magnetic properties of the Fe1−xAgxCr2S4 (0 < x < 0.2) solid solution were investigated in the temperature range 4–300 K in a DC field of 0.1 and 45 kOe. Fe1−xAgxCr2 [...] Read more.
The magnetic properties of the Fe1−xAgxCr2S4 (0 < x < 0.2) solid solution were investigated in the temperature range 4–300 K in a DC field of 0.1 and 45 kOe. Fe1−xAgxCr2S4 is characterized by the transition temperature from the paramagnetic to the ferromagnetic state (Tc) and the irreversibility temperature (Tirr). The replacement of iron with silver ions in Fe1−xAgxCr2S4 leads to an increase in the Curie temperatures from 185 K (x = 0) to 216 K (x = 0.2) and Tcusp from 45 K (x = 0) to 125 K (x = 0.2). A section of the Fe1−xAgxCr2S4 magnetic phase diagram in the region under study has been constructed. The diagram reveals the following regions: paramagnetic, ferromagnetic, region of conditionally recurrent spin-glass (SG), and below 10 K a region associated with orbital ordering. Full article
(This article belongs to the Special Issue Ferrimagnetic Materials: State of the Art and Future Perspectives)
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