TY - JOUR
T1 - All-in-all-out magnetic domain inversion in Tb2Ir2 O7 with molecular fields antiparallel to external fields
AU - Fujita, T. C.
AU - Kozuka, Y.
AU - Matsuno, J.
AU - Uchida, M.
AU - Tsukazaki, A.
AU - Arima, T.
AU - Kawasaki, M.
N1 - Funding Information:
We thank J. Fujioka, K. Ueda, Y. Tokura, N. Nagaosa, Y. Yamaji, and M. Imada for helpful discussions. This work was partly supported by Grants-in-Aid for Scientific Research (S) No. 24226002 and No. 24224010, by CREST, JST (Grant No. JPMJCR16F1), by JSPS Fellowship No. 26 · 10112 (T.C.F.), Challenging Exploratory Research No. 16K13682 (Y.K.) and No. 26610098 (M.U.), Scientific Research on Innovative Areas “Topological Materials Science” Grant No. JP16H00980, and Scientific Research (B) Grant No. 17H02791 (J.M.) from MEXT, Japan, as well as by Asahi Glass Foundation (Y.K.).
PY - 2018/1/25
Y1 - 2018/1/25
N2 - We report on magnetotransport properties associated with the all-in-all-out magnetic order for Tb2Ir2O7 single-crystalline thin films. Two degenerate all-in-all-out domains of an Ir sublattice can be switched to each other by magnetic field along the [111] direction as detected by a characteristic magnetoresistivity with diplike hysteresis. For a given single-domain structure, the linear magnetoresistivity, reflecting the effective magnetic field at Ir4+, changes its sign at around 70 K. These observations are consistently explained by the molecular fields from Tb3+ on Ir4+ moments. The molecular fields from Tb3+ moments compete with the external fields and dominate the magnetoresponse of Ir4+ moments at lower temperature, whereas the external field does at higher temperature.
AB - We report on magnetotransport properties associated with the all-in-all-out magnetic order for Tb2Ir2O7 single-crystalline thin films. Two degenerate all-in-all-out domains of an Ir sublattice can be switched to each other by magnetic field along the [111] direction as detected by a characteristic magnetoresistivity with diplike hysteresis. For a given single-domain structure, the linear magnetoresistivity, reflecting the effective magnetic field at Ir4+, changes its sign at around 70 K. These observations are consistently explained by the molecular fields from Tb3+ on Ir4+ moments. The molecular fields from Tb3+ moments compete with the external fields and dominate the magnetoresponse of Ir4+ moments at lower temperature, whereas the external field does at higher temperature.
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U2 - 10.1103/PhysRevMaterials.2.011402
DO - 10.1103/PhysRevMaterials.2.011402
M3 - Article
AN - SCOPUS:85059649605
VL - 2
JO - Physical Review Materials
JF - Physical Review Materials
SN - 2475-9953
IS - 1
M1 - 011402
ER -