Trimer-based spin liquid candidate
Abstract
Ba4NbIr3O12, a material with a triangular planar geometry of Ir3O12 trimers, is described. Magnetic susceptibility measurements show it to be paramagnetic with no magnetic ordering down to 1.8 K despite the Curie-Weiss temperature (θCW) of -13 K. The material has a very low effective magnetic moment (μeff) of 0.80 μB/f.u. To look at the lower-temperature behavior, the specific heat (Cp) was measured down to 0.35 K; it shows no indication of magnetic ordering and fitting a power law to Cp vs T below 2 K yields the power α = 3/4. Comparison to the trimer compound made with the 4d element Rh in place of the 5d element Ir, Ba4NbRh3O12, which is also paramagnetic (μeff = 1.48μB/f.u., θCW = -23K), is presented. Furthermore, the analysis suggests that Ba4NbIr3O12 is a candidate spin liquid material.
- Authors:
-
- Princeton Univ., NJ (United States). Dept. of Chemistry
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Institute for Quantum Matter (IQM); Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1566699
- Alternate Identifier(s):
- OSTI ID: 1491780; OSTI ID: 1811922
- Grant/Contract Number:
- SC0019331
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; optics; thermal conductivity; defects; charge transport; superconductivity; magnetism and spin physics; quantum information science; materials and chemistry by design; synthesis (novel materials); magnetic coupling; magnetism; quantum spin liquid; specific heat; spin liquid
Citation Formats
Nguyen, Loi T., and Cava, R. J. Trimer-based spin liquid candidate Ba4NbIr3O12. United States: N. p., 2019.
Web. doi:10.1103/physrevmaterials.3.014412.
Nguyen, Loi T., & Cava, R. J. Trimer-based spin liquid candidate Ba4NbIr3O12. United States. https://doi.org/10.1103/physrevmaterials.3.014412
Nguyen, Loi T., and Cava, R. J. Wed .
"Trimer-based spin liquid candidate Ba4NbIr3O12". United States. https://doi.org/10.1103/physrevmaterials.3.014412. https://www.osti.gov/servlets/purl/1566699.
@article{osti_1566699,
title = {Trimer-based spin liquid candidate Ba4NbIr3O12},
author = {Nguyen, Loi T. and Cava, R. J.},
abstractNote = {Ba4NbIr3O12, a material with a triangular planar geometry of Ir3O12 trimers, is described. Magnetic susceptibility measurements show it to be paramagnetic with no magnetic ordering down to 1.8 K despite the Curie-Weiss temperature (θCW) of -13 K. The material has a very low effective magnetic moment (μeff) of 0.80 μB/f.u. To look at the lower-temperature behavior, the specific heat (Cp) was measured down to 0.35 K; it shows no indication of magnetic ordering and fitting a power law to Cp vs T below 2 K yields the power α = 3/4. Comparison to the trimer compound made with the 4d element Rh in place of the 5d element Ir, Ba4NbRh3O12, which is also paramagnetic (μeff = 1.48μB/f.u., θCW = -23K), is presented. Furthermore, the analysis suggests that Ba4NbIr3O12 is a candidate spin liquid material.},
doi = {10.1103/physrevmaterials.3.014412},
journal = {Physical Review Materials},
number = 1,
volume = 3,
place = {United States},
year = {Wed Jan 23 00:00:00 EST 2019},
month = {Wed Jan 23 00:00:00 EST 2019}
}
Web of Science
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