期刊
APPLIED PHYSICS LETTERS
卷 118, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0050062
关键词
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资金
- Defense Advanced Research Project Agency (DARPA) program on Topological Excitations in Electronics (TEE) [D18AP00009]
- National Science Foundation [1726617]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1726617] Funding Source: National Science Foundation
MTX-based compounds show promise as rare-earth-free candidates for multicaloric applications due to the proximity of their structural and magnetic phase transitions. First principles calculations reveal a complex interplay between M-, T-, and X-site elements in tuning properties, highlighting the importance of site-specific responses in rational alloy design. Future synthesis and characterization efforts should focus on uncovering site-specific data to maximize the caloric response and bridge the knowledge-gap.
The MTX-based compounds are promising rare-earth-free candidates for multicaloric applications due to the proximity of their structural and magnetic phase transitions. In this paper, we use first principles calculations to study how chemical pressure affects the energetics, saturation magnetization, and volume change. Our calculations reveal the presence of a complex interplay between the M-, T-, and X-site elements in tuning the properties. The choice of elements for rational alloy design should be informed by the site-specific response. Our work motivates future synthesis and characterization efforts to focus on uncovering site-specific data to tailor strategies for maximizing the caloric response and bridge the knowledge-gap.
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