TY - JOUR
T1 - Topological Hall effect in thin films of the Heisenberg ferromagnet EuO
AU - Ohuchi, Y.
AU - Kozuka, Y.
AU - Uchida, M.
AU - Ueno, K.
AU - Tsukazaki, A.
AU - Kawasaki, M.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/6/8
Y1 - 2015/6/8
N2 - We report on the topological Hall effect (THE) in centrosymmetric EuO thin films. This THE signal persists down to the lowest temperature in the metallic region below 50 K for the films thinner than 200 nm. The signal rapidly disappears by tilting the applied magnetic field from surface normal, suggestive of noncoplanar spin configuration such as two-dimensional skyrmions. This observation possibly substantiates the theoretical proposal of magnetic skyrmions in 2D Heisenberg ferromagnets in marked contrast to better established B20-type chiral helimagnets.
AB - We report on the topological Hall effect (THE) in centrosymmetric EuO thin films. This THE signal persists down to the lowest temperature in the metallic region below 50 K for the films thinner than 200 nm. The signal rapidly disappears by tilting the applied magnetic field from surface normal, suggestive of noncoplanar spin configuration such as two-dimensional skyrmions. This observation possibly substantiates the theoretical proposal of magnetic skyrmions in 2D Heisenberg ferromagnets in marked contrast to better established B20-type chiral helimagnets.
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U2 - 10.1103/PhysRevB.91.245115
DO - 10.1103/PhysRevB.91.245115
M3 - Article
AN - SCOPUS:84931281457
SN - 1098-0121
VL - 91
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 24
M1 - 245115
ER -