Possible observation of quantum spin-nematic phase in a frustrated magnet
Open accessAbstract
Significance: Spin-nematic state in frustrated ferromagnet is one of the exotic states of matter at high magnetic field that could arise as the Bose–Einstein condensation of the two-magnon bound state. Its experimental detection in a real material has long been hindered by the fact that the order parameter of the spin-nematic state, spin quadrupole moment, is hard to detect with conventional magnetic probes available in high magnetic field. Here we design a calorimeter for the pulsed magnetic field studies and perform state-of-the-art measurements of heat capacity and magnetocaloric effect up to 33 T. These results provide strong prima facie evidence for a spin-nematic state in the copper-based mineral volborthite.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Recent improvement of the field stabilization technique fully removes the risk of temperature instability induced by coupling between magnetic fields and sample temperature.
“With the recent improvement of the field stabilization technique that fully removes the risk of the temperature instability induced by the coupling between magnetic fields and sample temperature, 25,26 it likely becomes possible to measure thermal conductivity under pulsed magnetic fields.”
From Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields (2023) · cites this paper as [25]
The Methods section, “Heat Capacity Measurements at Flat-Top Pulsed Magnetic Fields” (page not provided), describes improved field stabilization and reports that temperature fluctuations were suppressed to within ±0.01 K. That supports reduced temperature instability, but not the claim that its risk was fully removed. (LLM, conf=0.88)
Experimental — accuracy not yet measuredThe feedback-controlled flat-top pulse has enabled measurement of a variety of physical quantities under high magnetic fields such as specific heat, NMR, and current-voltage characteristics.
“The feedback-controlled flat-top pulse has enabled us to measure a variety of physical quantities under high magnetic fields such as specific heat, 21,25,26 nuclear magnetic resonance (NMR), 22,24 current-voltage characteristic, 23 etc.”
From Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields (2023) · cites this paper as [25]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
No references could be resolved yet.
Research works printed but not linked: 9
- [4]Chubukov AV (1991) Chiral, nematic, and dimer states in quantum spin chains. Phys Rev B 44: 4693– 4696. 10000135
- [9]Shannon N, Momoi T, Sindzingre P (2006) Nematic order in square lattice frustrated ferromagnets. Phys Rev Lett 96: 027213. 16486634
- [16]Orlova A, (2017) Nuclear magnetic resonance signature of the spin-nematic phase in LiCuVO4 at high magnetic fields. Phys Rev Lett 118: 247201. 28665634
- [19]Janson O, (2016) Magnetic behavior of volborthite Cu3V2O7(OH)2·2H2O determined by coupled trimers rather than frustrated chains. Phys Rev Lett 117: 037206. 27472136
- [20]Ishikawa H, (2015) One-third magnetization plateau with a preceding novel phase in volborthite. Phys Rev Lett 114: 227202. 26196641
- [24]Yoshida H, (2012) Orbital switching in a frustrated magnet. Nat Commun 3: 860. 22643887
- [30]Skoulatos M, (2019) Putative spin-nematic phase in BaCdVO(PO4)2. arXiv:1903.12462. · arXiv
- [31]Ishikawa H, (2012) A novel crystal polymorph of volborthite, Cu3V2O7(OH)2·2H2O. Acta Crystallogr C 68: i41– i44. 22763677
- [32]Rost AW, Perry RS, Mercure JF, Mackenzie AP, Grigera SA (2009) Entropy landscape of phase formation associated with quantum criticality in Sr3Ru2O7. Science 325: 1360– 1363. 19661381
Cited by
Sorted by citations
Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields
Nomoto, T., Zhong, C., Kageyama, H., Suzuki, Y., Jaime, M., Hashimoto, Y., Katsumoto, S., Matsuyama, N., Dong, C., Matsuo, A., et al. (2023) · arXiv · doi:10.48550/arxiv.2302.01627 · Cited by 5 · see citing works
Self-citation
- Authors
- Kohama, Y., Ishikawa, H., Matsuo, A., Kindo, K., Shannon, N., & Hiroi, Z.
- Affiliations
- The Institute for Solid State Physics, The University of Tokyo (JP)
- Okinawa Institute of Science and Technology Graduate University (JP)
- Corresponding author
- Kohama, Yoshimitsu
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2019-05-09
- Volume
- 116
- Issue
- 22
- Pages
- 10686-10690
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC6561203
- OpenAlex
- W2944063709
- Cited by
- 88
- References
- 0
- Citations by year
- 2026: 9 · 2025: 6 · 2024: 14 · 2023: 12 · 2022: 11 · 2021: 13 · 2020: 13 · 2019: 9 · 2018: 1
- FWCI
- 6.71
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion, cc-by-nc-nd)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
- mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion, other-oa)
- Okinawa Institute of Science and Technology Graduate University (Okinawa Institute of Science and Technology Graduate University) (submittedVersion, cc-by-nc-nd)
- Funders
- MEXT | Japan Society for the Promotion of Science (15K05143)
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Theoretical and Computational Physics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Keywords
- spin nematic phase, frustrated magnets, two-magnon bound states, Bose-Einstein condensation, heat capacity, magnetocaloric effect, pulsed magnetic field, calorimeter, volborthite, high magnetic fields
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
