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- Title
High‐Performance Magnetic Refrigerant Featuring One‐Dimensional Gd‐O Chains and O‐Gd<sub>3</sub> Triangles.
- Authors
Tao, Ce; Li, Rukang
- Abstract
Abstract: Magnetic cooling at low temperature has attracted intensive interest in cryogenics research, which may become important as cooling medium for long‐wave photon detectors to support space exploration. Here, we report a Gd‐based quaternary magnetic refrigerant material, Gd5BSi2O13, containing chains of face‐shared GdO9 polyhedra and geometrically frustrated OGd3 triangles. Magnetic measurements indicate that Gd5BSi2O13 exhibits a large magnetocaloric effect (MCE) about 1.74 times that of the practical magnetic refrigerant GGG (−ΔSm=67.0 J kg−1 K−1). We analyzed the origin of the large MCE by comparing GdIII‐containing compounds with different structures and concentrations of GdIII.
- Subjects
GADOLINIUM compounds; MAGNETIC cooling; POLYHEDRA; MAGNETIC measurements; MAGNETOCALORIC effects; THERMAL stability
- Publication
Chemistry - An Asian Journal, 2018, Vol 13, Issue 19, p2834
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201801127