Correlating Crystallography, Magnetism, and Electronic Structure Across Anhysteretic First-Order Phase Transition in Pr2In
Journal Article
·
· ECS Journal of Solid State Science and Technology
- Ames Lab., Ames, IA (United States)
- Ames Lab., Ames, IA (United States); Univ. of Iowa, Iowa City, IA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Here, temperature-dependent powder X-ray diffraction and magnetization measurements of Pr2In conclusively prove that the unusual anhysteretic first-order paramagnetic-ferromagnetic phase transition in the compound is related to concurrent changes in both the magnetic and crystallographic lattices. At the same time, the hexagonal Ni2In-type structure is stable at least between 6 and 298 K, including at TC = ~57 K. From the density functional theory calculations, the electronic structure of the compound is extraordinarily sensitive to minor changes in lattice parameters that occur across the phase transition, revealing the origin of strong magnetoelastic coupling. In the vicinity of TC, the maximum entropy change, ΔSMax = -16 J Kg-1K-1 induced by a moderate magnetic field change of 20 kOe (ΔSMax = -20 J Kg-1K-1 for 50 kOe magnetic field change) is comparable to other known potentially functional materials demonstrating large cryogenic magnetocaloric effect.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science - Office of Basic Energy Sciences
- Grant/Contract Number:
- AC02-06CH11357; AC02-07CH11358
- OSTI ID:
- 1864270
- Alternate ID(s):
- OSTI ID: 1894870
- Report Number(s):
- IS-J-10,777; DE-AC02-07CH11358; DE-AC02-06CH11357
- Journal Information:
- ECS Journal of Solid State Science and Technology, Journal Name: ECS Journal of Solid State Science and Technology Journal Issue: 4 Vol. 11; ISSN 2162-8769
- Publisher:
- Electrochemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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