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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.12170 |
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| _version_ | 1866917164825444352 |
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| author | Vasques, Gustavo Gomes Dutra, Mateus Sabino, Pedro Caetano Dias, Juliana Gonçalves Cagigas, Julian Andrés Munévar Benvenho, Adriano Reinaldo Viçoto Avila, Marcos A. |
| author_facet | Vasques, Gustavo Gomes Dutra, Mateus Sabino, Pedro Caetano Dias, Juliana Gonçalves Cagigas, Julian Andrés Munévar Benvenho, Adriano Reinaldo Viçoto Avila, Marcos A. |
| contents | Single crystals of GdPt$_2$Si$_2$ were grown using the Sn flux method, crystallizing in the CaBe$_2$Ge$_2$-type tetragonal structure with space group $P4/nmm$. Electrical resistivity, specific heat, and magnetization data revealed the presence of a double magnetic transition with $T_N \approx 8.4$~K and $T_0 \approx 6.8$~K. Analysis of the specific heat data suggest amplitude-modulated and equal-moment antiferromagnetic orderings, respectively. Field-induced magnetization and magnetic susceptibility data show a metamagnetic transition in the $H \parallel a$ direction at 2~K, as well as the suppression of the magnetic transition located at $T_0$ with increasing external magnetic field. Electron Spin Resonance (ESR) shows the Gd$^{3+}$ resonance followed by a small second resonance. Peak-to-peak linewidth ($ΔH_{pp}$) analysis reveals slight broadening at $T \sim 120$~K, indicating an increase in magnetic fluctuations at high temperatures. Ferromagnetic (FM) local polarization at high temperatures is also observed through the $g$-factor analysis, which shows a notable positive shift ($Δg$). Our results establish the fundamental physical properties of this material to aid in further understanding of the magnetism in the RPt$_2$Si$_2$ series and related non-centrosymmetric systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_12170 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Synthesis and anisotropic magnetism of singlecrystalline GdPt2Si2 Vasques, Gustavo Gomes Dutra, Mateus Sabino, Pedro Caetano Dias, Juliana Gonçalves Cagigas, Julian Andrés Munévar Benvenho, Adriano Reinaldo Viçoto Avila, Marcos A. Strongly Correlated Electrons Single crystals of GdPt$_2$Si$_2$ were grown using the Sn flux method, crystallizing in the CaBe$_2$Ge$_2$-type tetragonal structure with space group $P4/nmm$. Electrical resistivity, specific heat, and magnetization data revealed the presence of a double magnetic transition with $T_N \approx 8.4$~K and $T_0 \approx 6.8$~K. Analysis of the specific heat data suggest amplitude-modulated and equal-moment antiferromagnetic orderings, respectively. Field-induced magnetization and magnetic susceptibility data show a metamagnetic transition in the $H \parallel a$ direction at 2~K, as well as the suppression of the magnetic transition located at $T_0$ with increasing external magnetic field. Electron Spin Resonance (ESR) shows the Gd$^{3+}$ resonance followed by a small second resonance. Peak-to-peak linewidth ($ΔH_{pp}$) analysis reveals slight broadening at $T \sim 120$~K, indicating an increase in magnetic fluctuations at high temperatures. Ferromagnetic (FM) local polarization at high temperatures is also observed through the $g$-factor analysis, which shows a notable positive shift ($Δg$). Our results establish the fundamental physical properties of this material to aid in further understanding of the magnetism in the RPt$_2$Si$_2$ series and related non-centrosymmetric systems. |
| title | Synthesis and anisotropic magnetism of singlecrystalline GdPt2Si2 |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2506.12170 |