Trimer-based spin liquid candidate
- Princeton Univ., NJ (United States). Dept. of Chemistry
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.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Institute for Quantum Matter (IQM); Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0019331
- OSTI ID:
- 1566699
- Alternate ID(s):
- OSTI ID: 1491780; OSTI ID: 1811922
- Journal Information:
- Physical Review Materials, Vol. 3, Issue 1; ISSN 2475-9953
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Quantum spin liquids
|
journal | January 2020 |
Random singlet state in single crystals
|
journal | January 2020 |
Quantum Spin Liquids | text | January 2019 |
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