Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe$_3$
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929451659427840 |
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| author | Xu, Mingyu Lee, Yongbin Ke, Xianglin Kang, Min-Chul Boswell, Matt Bud'ko, Sergey. L. Zhou, Lin Ke, Liqin Li, Mingda Canfield, Paul. C. Xie, Weiwei |
| author_facet | Xu, Mingyu Lee, Yongbin Ke, Xianglin Kang, Min-Chul Boswell, Matt Bud'ko, Sergey. L. Zhou, Lin Ke, Liqin Li, Mingda Canfield, Paul. C. Xie, Weiwei |
| contents | Magnetic anisotropy is a crucial characteristic for enhancing spintronic device performance. The synthesis of SmCrGe$_3$ single crystals through a high-temperature solution method has led to the determination of uniaxial magnetocrystalline anisotropy. Phase verification was achieved using scanning transmission electron microscopy (STEM), powder, and single-crystal X-ray diffraction techniques. Electrical transport and specific heat measurements indicate a Curie temperature ($T_C$) of approximately 160 K, while magnetization measurements were utilized to determine the anisotropy fields and constants. Curie-Weiss fitting applied to magnetization data suggests the contribution of both Sm and Cr in the paramagnetic phase. Additionally, density functional theory (DFT) calculations explored the electronic structures and magnetic properties of SmCrGe$_3$, revealing a significant easy-axis single-ion Sm magnetocrystalline anisotropy of 16 meV/f.u.. Based on the magnetization measurements, easy-axis magnetocrystalline anisotropy at 20 K is 13 meV/f.u.. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03770 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe$_3$ Xu, Mingyu Lee, Yongbin Ke, Xianglin Kang, Min-Chul Boswell, Matt Bud'ko, Sergey. L. Zhou, Lin Ke, Liqin Li, Mingda Canfield, Paul. C. Xie, Weiwei Materials Science Magnetic anisotropy is a crucial characteristic for enhancing spintronic device performance. The synthesis of SmCrGe$_3$ single crystals through a high-temperature solution method has led to the determination of uniaxial magnetocrystalline anisotropy. Phase verification was achieved using scanning transmission electron microscopy (STEM), powder, and single-crystal X-ray diffraction techniques. Electrical transport and specific heat measurements indicate a Curie temperature ($T_C$) of approximately 160 K, while magnetization measurements were utilized to determine the anisotropy fields and constants. Curie-Weiss fitting applied to magnetization data suggests the contribution of both Sm and Cr in the paramagnetic phase. Additionally, density functional theory (DFT) calculations explored the electronic structures and magnetic properties of SmCrGe$_3$, revealing a significant easy-axis single-ion Sm magnetocrystalline anisotropy of 16 meV/f.u.. Based on the magnetization measurements, easy-axis magnetocrystalline anisotropy at 20 K is 13 meV/f.u.. |
| title | Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe$_3$ |
| topic | Materials Science |
| url | https://arxiv.org/abs/2408.03770 |