Hole doping and antiferromagnetic correlations above the Néel temperature of the topological semimetal (Sr1−xKx)MnSb2
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DOI: 10.1103/physrevb.100.014437
Abstract: Neutron diffraction and magnetic susceptibility studies of orthorhombic single crystal {\Ksub} confirm the three dimensional (3D) C-type antiferromagnetic (AFM) ordering of the Mn$^{2+}$ moments at $T_{\rm N}=305 \pm 3$ K which is slightly higher than… read more here.
Keywords: doping antiferromagnetic; temperature topological; hole; antiferromagnetic correlations ... See more keywords
Comparison of finite-temperature topological indicators based on Uhlmann connection
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DOI: 10.1103/physrevb.104.165417
Abstract: Two indicators of finite-temperature topological properties based on the Uhlmann connection, one generalizing the Wilson loop to the Uhlmann-Wilson loop and the other generalizing the Berry phase to the Uhlmann phase, are constructed explicitly for… read more here.
Keywords: temperature topological; finite temperature; temperature; uhlmann connection ... See more keywords
An efficient material search for room-temperature topological magnons
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DOI: 10.1126/sciadv.ade7731
Abstract: Topologically protected magnon surface states are highly desirable as an ideal platform to engineer low-dissipation spintronics devices. However, theoretical prediction of topological magnons in strongly correlated materials proves to be challenging because the ab initio… read more here.
Keywords: temperature topological; topological magnons; temperature; search ... See more keywords