Magnetic properties of Cr2AlB2, Cr3AlB4, and CrB powders
| العنوان: | Magnetic properties of Cr2AlB2, Cr3AlB4, and CrB powders |
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| المؤلفون: | Michel W. Barsoum, Lars Hultman, Jun Lu, Christine Opagiste, Wenzhen Wang, Sankalp Kota, Steven J. May, Guobing Ying, Varun Natu |
| المساهمون: | A.J. Drexel Nanomaterials Institute (Philadelphia, USA), Drexel University, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Magnétisme et Supraconductivité (MagSup ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]) |
| المصدر: | Journal of Alloys and Compounds Journal of Alloys and Compounds, Elsevier, 2018, 767, pp.474-482. ⟨10.1016/j.jallcom.2018.07.031⟩ |
| بيانات النشر: | Elsevier BV, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 010302 applied physics, Materials science, Magnetic moment, Mechanical Engineering, Metals and Alloys, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetization, Paramagnetism, Crystallography, chemistry.chemical_compound, Ferromagnetism, chemistry, Mechanics of Materials, Impurity, Boride, 0103 physical sciences, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Materials Chemistry, Orthorhombic crystal system, 0210 nano-technology, Saturation (magnetic), ComputingMilieux_MISCELLANEOUS |
| الوصف: | The MAB phases are ternary, atomically laminated compounds that crystallize with orthorhombic structures and consist of transition metal (M) boride sublattices interleaved with single or double layers of Al. To date, the magnetic properties of ferromagnetic Fe2AlB2 have been well-studied experimentally, but those of most end member MAB phases with other transition metals remain poorly understood. Herein, predominantly single-phase Cr3AlB4 and Cr2AlB2 powders, with minor amounts of CrB impurities, were synthesized by heating mixtures of chromium monoboride (CrB), aluminum (Al), and boron or CrB and Al under flowing Ar. These reactants were found to substantially suppress the formation of undesired phases in the Cr-Al-B system. The magnetic properties of Cr3AlB4, Cr2AlB2 and CrB powders were characterized. All compounds exhibit paramagnetic behavior down to 4 K, with susceptibilities that are quite weakly temperature dependent at higher temperatures and a Curie-Weiss-like component prominent at low temperatures. Magnetization isotherms of the three compounds, showed approximately linear behavior above 5 kOe and no saturation of the magnetic moment up to 40 kOe, which is consistent with paramagnetism. The magnitude of the magnetic moments showed little variation with composition, on a per Cr atom basis. While the exact nature of the Curie-Weiss component is not entirely clear, we tentatively attribute it to dilute extrinsic impurities. |
| تدمد: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2018.07.031 |
| DOI: | 10.1016/j.jallcom.2018.07.031⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75e072212e24e0435f5a1b1513d9d283 https://doi.org/10.1016/j.jallcom.2018.07.031 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....75e072212e24e0435f5a1b1513d9d283 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09258388 |
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| DOI: | 10.1016/j.jallcom.2018.07.031 |