Antiferromagnetic ordering and dipolar interactions of
Journal Article
·
· Physical Review B
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany); Dresden Univ. of Technology (Germany)
- Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany)
- Lviv Polytechnic National Univ. (Ukraine)
Here, we report low-temperature magnetic properties of the rare-earth perovskite material . Results of elastic and inelastic neutron scattering experiment, magnetization measurements along with the crystalline electrical field (CEF) calculations, indicate that the ground state of Yb moments is a strongly anisotropic Kramers doublet, and the moments are confined in the ab plane, pointing at an angle of φ=±23.5° to the $$a$$ axis. With temperature decreasing below TN=0.88 K, Yb moments order into the coplanar but noncollinear antiferromagnetic (AFM) structure $AxGy$, where the moments are pointed along their easy axes. In addition, we highlight the importance of the dipole-dipole interaction, which selects the type of magnetic ordering and may be crucial for understanding magnetic properties of other rare-earth orthorhombic perovskites. Further analysis of the broad diffuse neutron scattering shows that one-dimensional interaction along the c axis is dominant and implies as a new member of one-dimensional quantum magnets.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- International Max Planck Research School for Chemistry and Physics of Quantum Materials (IMPRS-CPQM); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Ukrainian Ministry of Education and Sciences
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1542224
- Alternate ID(s):
- OSTI ID: 1511765
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 19 Vol. 99; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | December 2019 |
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