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Article

Low-Temperature Crystal Structure and Mean-Field Modeling of ErxDy1−xAl2 Intermetallics

1
Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, IA 50011, USA
2
Instituto de Física Armando Dias Tavares, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-013, Brazil
3
Instituto de Aplicação Fernando Rodrigues da Silveira, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20261-232, Brazil
4
Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, USA
*
Author to whom correspondence should be addressed.
Metals 2020, 10(12), 1662; https://doi.org/10.3390/met10121662
Received: 9 November 2020 / Revised: 2 December 2020 / Accepted: 7 December 2020 / Published: 11 December 2020
Low-temperature crystal structure of the ErxDy1−xAl2 alloys with x = 0.45, 0.67, 0.90 was examined using temperature-dependent powder X-ray diffraction. The Er-rich sample, Er0.9Dy0.1Al2, exhibits a rhombohedral distortion associated with the magnetic ordering that occurs around 20 K. The rhombohedral distortion is suppressed in Er0.67Dy0.33Al2, while a weak low-temperature tetragonal distortion is observed in Er0.45Dy0.55Al2. The mean-field theory supports the correlation between the type of structural distortion and the variable easy magnetization axis in ErxDy1−xAl2 intermetallics. View Full-Text
Keywords: rare earths; intermetallic compounds; phase transformations; mean-field modeling rare earths; intermetallic compounds; phase transformations; mean-field modeling
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MDPI and ACS Style

Mudryk, Y.; Alho, B.P.; Ribeiro, P.O.; Pecharsky, V.K. Low-Temperature Crystal Structure and Mean-Field Modeling of ErxDy1−xAl2 Intermetallics. Metals 2020, 10, 1662. https://doi.org/10.3390/met10121662

AMA Style

Mudryk Y, Alho BP, Ribeiro PO, Pecharsky VK. Low-Temperature Crystal Structure and Mean-Field Modeling of ErxDy1−xAl2 Intermetallics. Metals. 2020; 10(12):1662. https://doi.org/10.3390/met10121662

Chicago/Turabian Style

Mudryk, Yaroslav, Bruno P. Alho, Paula O. Ribeiro, and Vitalij K. Pecharsky 2020. "Low-Temperature Crystal Structure and Mean-Field Modeling of ErxDy1−xAl2 Intermetallics" Metals 10, no. 12: 1662. https://doi.org/10.3390/met10121662

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