Magnetic ground state of the Ising-like antiferromagnet
Abstract
Here, we report on the low-temperature magnetic properties of the DyScO3 perovskite, which were characterized by means of single crystal and powder neutron scattering, and by magnetization measurements. Below TN = 3.15 K, Dy3+ moments form an antiferromagnetic structure with an easy axis of magnetization lying in the ab plane. The magnetic moments are inclined at an angle of ~ ±28° to the b axis. We show that the ground-state Kramers doublet of Dy3+ is made up of primarily |±15/2> eigenvectors and well separated by a crystal field from the first excited state at E1 = 24.9 meV. This leads to an extreme Ising single-ion anisotropy, M⊥/M∥~0.05. The transverse magnetic fluctuations, which are proportional to M2⊥/M2∥, are suppressed, and only moment fluctuations along the local Ising direction are allowed. We also found that the Dy-Dy dipolar interactions along the crystallographic c axis are two to four times larger than in-plane interactions.
- Authors:
-
[1];
[1];
[1];
[1];
[1];
[1];
[1];
[1];
[1];
[1]
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Max Planck Institute for Chemical Physics of Solids, Dresden (Germany); Technische Univ. Dresden, Dresden (Germany)
- Kirensky Institute of Physics, Krasnoyarsk (Russia)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1399967
- Alternate Identifier(s):
- OSTI ID: 1398156
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 14; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wu, L. S., Nikitin, Stanislav E., Frontzek, Matthias D., Kolesnikov, Alexander I., Ehlers, Georg, Lumsden, Mark D., Shaykhutdinov, Kirill A., Guo, E. -J., Savici, Andrei T., Gai, Zheng, Sefat, Athena Safa, and Podlesnyak, Andrey A. Magnetic ground state of the Ising-like antiferromagnet DyScO3. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.96.144407.
Wu, L. S., Nikitin, Stanislav E., Frontzek, Matthias D., Kolesnikov, Alexander I., Ehlers, Georg, Lumsden, Mark D., Shaykhutdinov, Kirill A., Guo, E. -J., Savici, Andrei T., Gai, Zheng, Sefat, Athena Safa, & Podlesnyak, Andrey A. Magnetic ground state of the Ising-like antiferromagnet DyScO3. United States. https://doi.org/10.1103/PhysRevB.96.144407
Wu, L. S., Nikitin, Stanislav E., Frontzek, Matthias D., Kolesnikov, Alexander I., Ehlers, Georg, Lumsden, Mark D., Shaykhutdinov, Kirill A., Guo, E. -J., Savici, Andrei T., Gai, Zheng, Sefat, Athena Safa, and Podlesnyak, Andrey A. Thu .
"Magnetic ground state of the Ising-like antiferromagnet DyScO3". United States. https://doi.org/10.1103/PhysRevB.96.144407. https://www.osti.gov/servlets/purl/1399967.
@article{osti_1399967,
title = {Magnetic ground state of the Ising-like antiferromagnet DyScO3},
author = {Wu, L. S. and Nikitin, Stanislav E. and Frontzek, Matthias D. and Kolesnikov, Alexander I. and Ehlers, Georg and Lumsden, Mark D. and Shaykhutdinov, Kirill A. and Guo, E. -J. and Savici, Andrei T. and Gai, Zheng and Sefat, Athena Safa and Podlesnyak, Andrey A.},
abstractNote = {Here, we report on the low-temperature magnetic properties of the DyScO3 perovskite, which were characterized by means of single crystal and powder neutron scattering, and by magnetization measurements. Below TN = 3.15 K, Dy3+ moments form an antiferromagnetic structure with an easy axis of magnetization lying in the ab plane. The magnetic moments are inclined at an angle of ~ ±28° to the b axis. We show that the ground-state Kramers doublet of Dy3+ is made up of primarily |±15/2> eigenvectors and well separated by a crystal field from the first excited state at E1 = 24.9 meV. This leads to an extreme Ising single-ion anisotropy, M⊥/M∥~0.05. The transverse magnetic fluctuations, which are proportional to M2⊥/M2∥, are suppressed, and only moment fluctuations along the local Ising direction are allowed. We also found that the Dy-Dy dipolar interactions along the crystallographic c axis are two to four times larger than in-plane interactions.},
doi = {10.1103/PhysRevB.96.144407},
journal = {Physical Review B},
number = 14,
volume = 96,
place = {United States},
year = {Thu Oct 05 00:00:00 EDT 2017},
month = {Thu Oct 05 00:00:00 EDT 2017}
}
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