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Title: Trimer-based spin liquid candidate B a 4 NbI r 3 O 12

Journal Article · · Physical Review Materials
 [1];  [1]
  1. 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
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (3)

Quantum spin liquids journal January 2020
Random singlet state in Ba 5 CuIr 3 O 12 single crystals journal January 2020
Quantum Spin Liquids text January 2019