17 research outputs found
From colossal to zero: Controlling the Anomalous Hall Effect in Magnetic Heusler Compounds via Berry Curvature Design
Since the discovery of the anomalous Hall effect (AHE), the anomalous Hall
conductivity (AHC) has been thought to be zero when there is no net
magnetization. However, the recently found relation between the intrinsic AHE
and the Berry curvature predicts other possibilities, such as a large AHC in
non-colinear antiferromagnets with no net magnetization but net Berry
curvature. Vice versa, the AHE in principle could be tuned to zero,
irrespective of a finite magnetization. Here, we experimentally investigate
this possibility and demonstrate that, the symmetry elements of Heusler magnets
can be changed such that the Berry curvature and all the associated properties
are switched while leaving the magnetization unaffected. This enables us to
tune the AHC from 0 {\Omega}-1cm-1 up to 1600 {\Omega}-1cm-1 with an
exceptionally high anomalous Hall angle up to 12 %, while keeping the
magnetization same. Our study shows that the AHC can be controlled by
selectively changing the Berry curvature distribution, independent of the
magnetization.Comment: Published in Physical Review X. 16 pages, 5 figure
CRT-600 Malapposition, Underexpansion and Edge Dissection in Bioabsorbable Vascular Scaffolds (Absorb™) and Xience™ Stents - A Comparison Based on Optical Coherence Tomography
Comparison of Maximum Likelihood with Conditional Pairwise Likelihood Estimation of Person Parameters in the Rasch Model
GENDER DIFFERENCES IN LONG-TERM CLINICAL OUTCOME AFTER PERCUTANEOUS REVASCULARISATION OF MULTIVESSEL CORONARY ARTERY DISEASE: INSIGHTS FROM AUTAX REGISTRY
Cultivation of Triphyophyllum peltatum (Dioncophyllaceae), the part-time carnivorous plant
Volume: 28Start Page: 7End Page: 1