TY - JOUR
T1 - Successive magnetic transitions of the kagome plane and field-driven chirality in single-crystal BaMn2.49 Ru3.51 O11
AU - Shlyk, L.
AU - Parkin, S.
AU - De Long, L. E.
PY - 2010/1/19
Y1 - 2010/1/19
N2 - The magnetization of single-crystal BaMn2.49 Ru3.51 O11 exhibits anomalies at temperatures T1 =183K, T2 =171K, and T3 =128K, which signal complex magnetic order induced by competing ferro- and antiferromagnetic correlations, and magnetic frustration within the kagome (hexagonal ab) plane. The T2 and T3 anomalies and unconventional transverse magnetoresistance are observed only for magnetic field H applied in the kagome plane. We conclude a topological Hall effect is generated by nonzero scalar chirality of spins canted out of the kagome plane but is suppressed in a collinear structure induced by only modest in-plane fields.
AB - The magnetization of single-crystal BaMn2.49 Ru3.51 O11 exhibits anomalies at temperatures T1 =183K, T2 =171K, and T3 =128K, which signal complex magnetic order induced by competing ferro- and antiferromagnetic correlations, and magnetic frustration within the kagome (hexagonal ab) plane. The T2 and T3 anomalies and unconventional transverse magnetoresistance are observed only for magnetic field H applied in the kagome plane. We conclude a topological Hall effect is generated by nonzero scalar chirality of spins canted out of the kagome plane but is suppressed in a collinear structure induced by only modest in-plane fields.
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U2 - 10.1103/PhysRevB.81.014413
DO - 10.1103/PhysRevB.81.014413
M3 - Article
AN - SCOPUS:77954789505
SN - 1098-0121
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 1
M1 - 014413
ER -