Ferromagnetic resonance and magnetic damping in C-doped Mn5Ge3
Ferromagnetic resonance (FMR) was used to investigate the static and dynamic magnetic properties of carbon-doped Mn5Ge3 thin films grown on Ge(1 1 1). The temperature dependence of magnetic anisotropy shows an increased perpendicular magneto-crystalline contribution at 80 K with an in-plane easy axi...
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| Veröffentlicht in: | Journal of physics. D, Applied physics Applied physics, 2015-12, Vol.49 (4) |
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| container_title | Journal of physics. D, Applied physics |
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| creator | Dutoit, C-E Dolocan, V O Kuzmin, M Michez, L Petit, M Le Thanh, V Pigeau, B Bertaina, S |
| description | Ferromagnetic resonance (FMR) was used to investigate the static and dynamic magnetic properties of carbon-doped Mn5Ge3 thin films grown on Ge(1 1 1). The temperature dependence of magnetic anisotropy shows an increased perpendicular magneto-crystalline contribution at 80 K with an in-plane easy axis due to the large shape contribution. We find that our samples show a small FMR linewidth (corresponding to an intrinsic magnetic damping parameter ) which is a measure of the spin relaxation and directly related with the magnetic and structural quality of the material. In the perpendicular-to-plane geometry, the FMR linewidth shows a minimum at around 200 K for all the samples, which seems to be not correlated to the C-doping. The magnetic relaxation parameters have been determined and indicate the two-magnon scattering as the main extrinsic contribution. We observe a change in the main contribution from scattering centres in Mn5 Ge3C0.2 at low temperatures, which could be related to the minimum in linewidth. |
| doi_str_mv | 10.1088/0022-3727/49/4/045001 |
| format | Article |
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The temperature dependence of magnetic anisotropy shows an increased perpendicular magneto-crystalline contribution at 80 K with an in-plane easy axis due to the large shape contribution. We find that our samples show a small FMR linewidth (corresponding to an intrinsic magnetic damping parameter ) which is a measure of the spin relaxation and directly related with the magnetic and structural quality of the material. In the perpendicular-to-plane geometry, the FMR linewidth shows a minimum at around 200 K for all the samples, which seems to be not correlated to the C-doping. The magnetic relaxation parameters have been determined and indicate the two-magnon scattering as the main extrinsic contribution. 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D, Applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dutoit, C-E</au><au>Dolocan, V O</au><au>Kuzmin, M</au><au>Michez, L</au><au>Petit, M</au><au>Le Thanh, V</au><au>Pigeau, B</au><au>Bertaina, S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ferromagnetic resonance and magnetic damping in C-doped Mn5Ge3</atitle><jtitle>Journal of physics. D, Applied physics</jtitle><stitle>JPhysD</stitle><addtitle>J. Phys. D: Appl. Phys</addtitle><date>2015-12-15</date><risdate>2015</risdate><volume>49</volume><issue>4</issue><issn>0022-3727</issn><eissn>1361-6463</eissn><coden>JPAPBE</coden><abstract>Ferromagnetic resonance (FMR) was used to investigate the static and dynamic magnetic properties of carbon-doped Mn5Ge3 thin films grown on Ge(1 1 1). The temperature dependence of magnetic anisotropy shows an increased perpendicular magneto-crystalline contribution at 80 K with an in-plane easy axis due to the large shape contribution. We find that our samples show a small FMR linewidth (corresponding to an intrinsic magnetic damping parameter ) which is a measure of the spin relaxation and directly related with the magnetic and structural quality of the material. In the perpendicular-to-plane geometry, the FMR linewidth shows a minimum at around 200 K for all the samples, which seems to be not correlated to the C-doping. The magnetic relaxation parameters have been determined and indicate the two-magnon scattering as the main extrinsic contribution. 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| subjects | Condensed Matter ferromagnetic resonance magnetic anisotropy magnetic damping Materials Science Physics thin films |
| title | Ferromagnetic resonance and magnetic damping in C-doped Mn5Ge3 |
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