Complex single-site magnetism and magnetotransport in single-crystalline Gd$_{2}$AlSi$_{3}$
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arXiv
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| Auteurs principaux: | , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866918061788889088 |
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| author | Kumar, Ram Saha, Shanta R. Horn, Jarryd Ikeda, A. Sokratov, Danila Anand, Yash Saraf, Prathum Dorman, Ryan Hemley, E. Iyer, K. K. Paglione, Johnpierre |
| author_facet | Kumar, Ram Saha, Shanta R. Horn, Jarryd Ikeda, A. Sokratov, Danila Anand, Yash Saraf, Prathum Dorman, Ryan Hemley, E. Iyer, K. K. Paglione, Johnpierre |
| contents | We present a detailed investigation of single-crystal samples of the magnetic compound Gd$_{2}$AlSi$_{3}$, which crystallizes in the $α$-ThSi$_2$ type tetragonal structure. We report the temperature and magnetic field dependence of the magnetic susceptibility, magnetization, heat capacity, electrical resistivity, and magnetoresistance for magnetic fields applied along both the tetragonal $c$-axis and in the basal $ab$-plane. X-ray diffraction measurements confirm a centrosymmetric, $I4_{1}/amd$ space group of the crystal structure. Despite single-site occupancy of the Gd position in this tetragonal structure, we identify two successive antiferromagnetic phase transitions at Neél temperatures 32~K and 23~K via magnetic susceptibility, heat capacity and transport measurements, as well as a complex magnetic interaction with a magnetic anisotropy that plays an important role in the direction-dependent transport response. Our identification of multiple magnetic phases in Gd$_{2}$AlSi$_{3}$, where Gd is the only magnetic species, helps to elucidate the field-induced skyrmionic behavior in the Gd-based intermetallic compounds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_14687 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Complex single-site magnetism and magnetotransport in single-crystalline Gd$_{2}$AlSi$_{3}$ Kumar, Ram Saha, Shanta R. Horn, Jarryd Ikeda, A. Sokratov, Danila Anand, Yash Saraf, Prathum Dorman, Ryan Hemley, E. Iyer, K. K. Paglione, Johnpierre Strongly Correlated Electrons Materials Science We present a detailed investigation of single-crystal samples of the magnetic compound Gd$_{2}$AlSi$_{3}$, which crystallizes in the $α$-ThSi$_2$ type tetragonal structure. We report the temperature and magnetic field dependence of the magnetic susceptibility, magnetization, heat capacity, electrical resistivity, and magnetoresistance for magnetic fields applied along both the tetragonal $c$-axis and in the basal $ab$-plane. X-ray diffraction measurements confirm a centrosymmetric, $I4_{1}/amd$ space group of the crystal structure. Despite single-site occupancy of the Gd position in this tetragonal structure, we identify two successive antiferromagnetic phase transitions at Neél temperatures 32~K and 23~K via magnetic susceptibility, heat capacity and transport measurements, as well as a complex magnetic interaction with a magnetic anisotropy that plays an important role in the direction-dependent transport response. Our identification of multiple magnetic phases in Gd$_{2}$AlSi$_{3}$, where Gd is the only magnetic species, helps to elucidate the field-induced skyrmionic behavior in the Gd-based intermetallic compounds. |
| title | Complex single-site magnetism and magnetotransport in single-crystalline Gd$_{2}$AlSi$_{3}$ |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2506.14687 |