Magnetic phase diagram of (Mo2/3RE1/3)2AlC, RE = Tb and Dy, studied by magnetization, specific heat, and neutron diffraction analysis. (24th May 2022)

• Record Type: Journal Article
• Authors: Tao, Quanzheng; Barbier, Maxime; Mockute, Aurelija; Ritter, Clemens; Salikhov, Ruslan; Wiedwald, Ulf; Calder, Stuart; Opagiste, Christine; Galera, Rose-Marie; Farle, Michael; Ouisse, Thierry; Rosen, Johanna
• Is Part Of: Journal of physics. Volume 34:Number 21(2022)
• Publication Date: 2022-05-24
• Subjects: MAX phase -- neutron diffraction -- magnetic material; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/ac5bcf
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: We report the results of magnetization, heat capacity, and neutron diffraction measurements on (Mo2/3 RE1/3 )2 AlC with RE = Dy and Tb. Temperature and field-dependent magnetization as well as heat capacity were measured on a powder sample and on a single crystal allowing the construction of the magnetic field-temperature phase diagram. To study the magnetic structure of each magnetic phase, we applied neutron diffraction in a magnetic field up to 6 T. For (Mo2/3 Dy1/3 )2 AlC in zero field, a spin density wave is stabilized at 16 K, with antiferromagnetic ordering at 13 K. Furthermore, we identify the coexistence of ferromagnetic and antiferromagnetic phases induced by magnetic fields for both RE = Tb and Dy. The origin of the field induced phases is resulting from the competing ferromagnetic and antiferromagnetic interactions.