Structural and cryogenic magnetic properties of the RE2MoO6 (RE = Er and Ho) compounds. Issue 5 (1st March 2023)

• Record Type: Journal Article
• Authors: Wang, Pengyu; Zhang, Yingde; Huang, Jiaohong; Hu, Liang; Wang, Xinhua; Li, Lingwei; Yan, Mi
• Is Part Of: Ceramics international. Volume 49:Issue 5(2023)
• Page Start: 8508
• Page End: 8515
• Publication Date: 2023-03-01
• Subjects: Ho2MoO6 and Er2MoO6 compounds -- Magnetocaloric effect (MCE) -- Low temperature magnetic refrigeration -- Rare earth based magnetic materials; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.11.013
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The rare earth ( RE ) based magnetic materials with large low temperature magnetocaloric effect (MCE) have attracted much research interest due to their potential application for the environment-friendly magnetic refrigeration (MR) technology. Herein, a systematic investigation on the crystal structure, micro morphology together with the low temperature magnetic properties and MCE performances have been conducted on the RE 2 MoO6 ( RE = Er and Ho) compounds. Both compounds crystallize in monoclinic structure and exhibit large reversible low temperature MCE. The maximum magnetic entropy changes ( − Δ S M max ) at magnetic field change ( Δ H ) of 0–5 T reach 15.3 and 15.8 J kg −1 K −1 for Er2 MoO6 and Ho2 MoO6, respectively. The corresponding relative cooling power/refrigeration capacity ( RCP / RC ) values are 197.4/149.7 and 286.0/222.3 J/kg. These obtained MCE parameters for present RE 2 MoO6 compounds are close to those of reported RE based MCE materials, which make them of potential for low temperature MR application.