Transverse acoustic phonon anomalies at intermediate wave vectors in MgV 2 O 4
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.184301
Abstract: Magnetic spinels (with chemical formula $A{X}_{2}{\mathrm{O}}_{4}$, with $X$ a $3d$ transition metal ion) that also have an orbital degeneracy are Jahn-Teller active and hence possess a coupling between spin and lattice degrees of freedom. At… read more here.
Keywords: wave vectors; transverse acoustic; phonon; acoustic phonon ... See more keywords
Imaging Topological Defects in a Noncollinear Antiferromagnet.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.187201
Abstract: We report on the formation of topological defects emerging from the cycloidal antiferromagnetic order at the surface of bulk BiFeO_{3} crystals. Combining reciprocal and real-space magnetic imaging techniques, we first observe, in a single ferroelectric… read more here.
Keywords: defects noncollinear; wave vectors; noncollinear antiferromagnet; topological defects ... See more keywords