Work

Magnetoelastic effect in R 5 Pt 2 In 4 ( R = Tb–Tm) investigated by neutron powder diffraction

Year: 2025

Type: article

Abstract: Thermal evolution of the unit-cell parameters a , b and c as well as the unit-cell volume V of R 5 Pt 2 In 4 ( R = Tb–Tm) is derived from the neutron powder diffraction data. For all investigated compounds, the above mentioned parameters show a noticeable change in vicinity of the critical temperature of the magnetic order. At lower temperatures, additional anomalies are found for R = Tb–Er. These anomalies are related to the magnetic phase transitions of the order-order type originating from appearance and/or rapid increase of the magnetic rare earth moment at one of the 4 g Wyckoff sites. The above mentioned results indicate presence of the magnetoelastic effect in the investigated intermetallics. Based on the experimental data, the product of compressibility and magnetoelastic coupling in R 5 Pt 2 In 4 ( R = Tb–Tm) is found to be 0.014 (2)%·μ B −2 .

Source: Acta Crystallographica Section B Structural Science Crystal Engineering and Materials

DOI: 10.1107/s205252062500900x

Authors: Aleksandra Deptuch, Stanisław Baran, Lukas Keller, Altifani Rizky Hayyu, Andrzej Szytuła

Institutions: Institute of Nuclear Physics, Polish Academy of Sciences, Jagiellonian University, Paul Scherrer Institute

Language: English

Topic: Rare-earth and actinide compounds

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Paul Scherrer Institut

OpenAlex ID: W4416011292

FWCI: 0.314

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Cited by: 1

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