Thermodynamic insights into the intricate magnetic phase diagram of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>EuAl</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>

Abstract

Topological spin textures like skyrmions and merons have been proposed to explain a topological Hall signal observed in magnetically ordered phases of EuAl${}_{4}$. Here, the authors investigate these phases via many complementary thermodynamic measurements of EuAl${}_{4}$ single crystals and discuss the symmetry implications of the results. The study provides a detailed magnetic phase diagram to guide future investigations, which includes three phase boundaries that were not previously identified.

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