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High‐Pressure Structural Investigation of Anomalous Hall Effect Compound Mn 3 Sn up to 9 GPa
Author(s) -
Lingannan Govindaraj,
Singh Anupam K.,
Joseph Boby,
Singh Sanjay,
Arumugam Sonachalam
Publication year - 2021
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.202000605
Subject(s) - synchrotron , crystal structure , condensed matter physics , diffraction , materials science , hexagonal crystal system , lattice constant , lattice (music) , crystallography , chemistry , physics , optics , acoustics
A systematic synchrotron high‐pressure X‐ray powder diffraction study of Mn 3 Sn up to 9 GPa is reported. In this pressure range, the crystal symmetry remains in the hexagonal P6 3 /mmc space group, with a continuous reduction of the lattice parameters. Analysis indicates that the Mn 3 Sn system may have a different magnetic ground state above 4 GPa due to varying local atomic interactions. This is brought about by the slightly varying compression rate for the in‐plane a ‐ and out‐of‐plane c ‐axis, respectively, ≈−0.0235 and ≈−0.0176 Å GPa −1 . The results contribute to the understanding of the crystal structure to the external continuous tuning parameter pressure, which modulates the geometrical arrangement of the atomic species in Mn 3 Sn, thus impacting the interesting physical properties such as the large anomalous Hall effect.