First-order magnetic phase transition in Pr2In with negligible thermomagnetic hysteresis

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2020-06-01
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Biswas, Anis
Zarkevich, N. A.
Pathak, Arjun
Dolotko, Oleksandr
Hlova, Ihor
Johnson, Duane
Smirnov, A. V.
Mudryk, Yaroslav
Johnson, Duane
Pecharsky, Vitalij
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Ames Laboratory
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Physics and Astronomy
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Magnetic first-order phase transitions are key for the emergence of functionalities of fundamental and applied significance, including magnetic shape memory as well as magnetostrictive and magnetocaloric effects. Such transitions are usually associated with thermomagnetic hysteresis. We report the observation of a first-order transition in Pr2In from a paramagnetic to a ferromagnetic state at TC=57K without a detectable thermomagnetic hysteresis, which is also accompanied by a large magnetocaloric effect. The peculiar electronic structure of Pr2In exhibiting a large density of states near the Fermi energy explains the highly responsive magnetic behavior of the material. The magnetic properties of Pr2In are reported, including observation of another (second-order) magnetic transition at 35 K.

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<p>This article is published as Biswas, Anis, N. A. Zarkevich, Arjun K. Pathak, O. Dolotko, Ihor Z. Hlova, A. V. Smirnov, Y. Mudryk, D. D. Johnson, and V. K. Pecharsky. "First-order magnetic phase transition in Pr2In with negligible thermomagnetic hysteresis." <em>Physical Review B</em> 101, no. 22 (2020): 224402. DOI: <a href="https://doi.org/10.1103/PhysRevB.101.224402" target="_blank">10.1103/PhysRevB.101.224402</a>. Posted with permission.</p>
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