Missing magnetism in Sr4Ru3O10: Indication for Antisymmetric Exchange Interaction
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Texas, Dallas, TX (United States). Dept. of Physics
- Univ. of Johannesburg (South Africa). Dept. of Physics
- Univ. of Salerno, Fisciano (Italy). CNR-SPIN Inst. Sede Secondaria di Salerno
Metamagnetism occuring inside a ferromagnetic phase is peculiar. Therefore, Sr4Ru3O10, a T C = 105 K ferromagnet, has attracted much attention in recent years, because it develops a pronounced metamagnetic anomaly below T C for magnetic fields applied in the crystallographic ab-plane. The metamagnetic transition moves to higher fields for lower temperatures and splits into a double anomaly at critical fields Hc1 = 2.3 T and Hc2 = 2.8 T, respectively. Here, we report a detailed study of the different components of the magnetization vector as a function of temperature, applied magnetic field, and varying angle in Sr4Ru3O10. We discover for the first time a reduction of the magnetic moment in the plane of rotation at the metamagnetic transition. The anomaly shifts to higher fields by rotating the field from H ⊥ c to H || c. We compare our experimental findings with numerical simulations based on spin reorientation models taking into account magnetocrystalline anisotropy, Zeeman effect and antisymmetric exchange interactions. While Magnetocrystalline anisotropy combined with a Zeeman term are sufficient to explain a metamagnetic transition in Sr4Ru3O10, a Dzyaloshinskii-Moriya term is crucial to account for the reduction of the magnetic moment as observed in the experiments.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Research Foundation (NRF) (South Africa)
- Contributing Organization:
- Florida State Univ., Tallahassee, FL (United States); Univ. of Texas, Dallas, TX (United States); Univ. of Salerno, Fisciano (Italy)
- Grant/Contract Number:
- AC52-06NA25396; DMR-1157490; 93549
- OSTI ID:
- 1369197
- Report Number(s):
- LA-UR-17-20729
- Journal Information:
- Scientific Reports, Vol. 7; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Temperature- and field-driven spin reorientations in triple-layer ruthenate Sr4Ru3O10
|
journal | March 2018 |
Suppression of the orbital magnetic moment driven by electronic correlations in
|
journal | September 2019 |
| Temperature- and field-driven spin reorientations in triple-layer ruthenate Sr$_4$Ru$_3$O$_{10}$ | preprint | January 2018 |
| In-depth study of the $H -T$ phase diagram of Sr4Ru3O10 by magnetization experiments | text | January 2017 |
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