Salikhov, R. ; Meshkian, R. ; Weller, D. ; Zingsem, B. ; Spoddig, D. ; Lu, J. ; Ingason, A. S. ; Zhang, H. ; Rosen, J. ; Wiedwald, U. ; Farle, M. (2017):
Magnetic properties of nanolaminated (Mo0.5Mn0.5)2GaC MAX phase.
In: Journal of Applied Physics, 121 (16), p. 163904. American Institute of Physics, Melville, NY, USA, ISSN 0021-8979,
DOI: 10.1063/1.4982197,
[Article]
Abstract
The magnetic properties of hexagonal (Mo0.5Mn0.5)(2)GaC MAX phase synthesized as epitaxial films on MgO (111) substrates with the c-axis perpendicular to the film plane are presented. The analysis of temperature-dependent ferromagnetic resonance (FMR) and magnetometry data reveals a ferro-to paramagnetic phase transition at 220 K. The electrical transport measurements at 5K show a negative magnetoresistance of 6% in a magnetic field of 9 T. Further analysis confirms the spin-dependent scattering of charge carriers in this layered material. A small perpendicular (c-axis) magnetocrystalline anisotropy energy density (MAE) of 4.5 kJ/m(3) at 100K was found using FMR. Accordingly, (Mo0.5Mn0.5)(2)GaC behaves similar to the (Cr0.5Mn0.5)(2)GaC MAX phase as a soft magnetic material. The density functional theory calculations reveal that the sign and the amplitude of the MAE can be very sensitive to (Mo0.5Mn0.5)(2)GaC lattice parameters, which may explain the measured soft magnetic properties. Published by AIP Publishing.
| Item Type: | Article |
|---|---|
| Erschienen: | 2017 |
| Creators: | Salikhov, R. ; Meshkian, R. ; Weller, D. ; Zingsem, B. ; Spoddig, D. ; Lu, J. ; Ingason, A. S. ; Zhang, H. ; Rosen, J. ; Wiedwald, U. ; Farle, M. |
| Title: | Magnetic properties of nanolaminated (Mo0.5Mn0.5)2GaC MAX phase |
| Language: | English |
| Abstract: | The magnetic properties of hexagonal (Mo0.5Mn0.5)(2)GaC MAX phase synthesized as epitaxial films on MgO (111) substrates with the c-axis perpendicular to the film plane are presented. The analysis of temperature-dependent ferromagnetic resonance (FMR) and magnetometry data reveals a ferro-to paramagnetic phase transition at 220 K. The electrical transport measurements at 5K show a negative magnetoresistance of 6% in a magnetic field of 9 T. Further analysis confirms the spin-dependent scattering of charge carriers in this layered material. A small perpendicular (c-axis) magnetocrystalline anisotropy energy density (MAE) of 4.5 kJ/m(3) at 100K was found using FMR. Accordingly, (Mo0.5Mn0.5)(2)GaC behaves similar to the (Cr0.5Mn0.5)(2)GaC MAX phase as a soft magnetic material. The density functional theory calculations reveal that the sign and the amplitude of the MAE can be very sensitive to (Mo0.5Mn0.5)(2)GaC lattice parameters, which may explain the measured soft magnetic properties. Published by AIP Publishing. |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume of the journal: | 121 |
| Issue Number: | 16 |
| Publisher: | American Institute of Physics, Melville, NY, USA |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Theory of Magnetic Materials |
| Date Deposited: | 27 Jul 2017 11:29 |
| DOI: | 10.1063/1.4982197 |
| URL / URN: | https://doi.org/10.1063/1.4982197 |
| PPN: | |
| Funders: | R.S. acknowledges DFG foundation under Grant No. SA 3095/2-1., D.W. acknowledges receipt of the Alexander von Humboldt award., J.R. acknowledges the support from the Swedish Foundation for Strategic Research (SSF) through the Synergy Grant FUNCASE, and from the Knut and Alice Wallenberg (KAW) Foundation for a Fellowship Grant and Project funding (KAW 2015.0043). |
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