| Title: | Optimized flux single-crystal growth of the quantum spin liquid candidate ▫$NdTa_7O_{19}$▫ and other rare-earth heptatantalates, ▫$ErTa_7O_{19}$▫ and ▫$GdTa_7O_{19}$▫ |
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| Authors: | ID Šibav, Lia, Institut "Jožef Stefan" (Author)
ID Lozinšek, Matic, Institut "Jožef Stefan" (Author)
ID Jagličić, Zvonko (Author)
ID Arh, Tina, Institut "Jožef Stefan" (Author)
ID Khuntia, Panchanana (Author)
ID Zorko, Andrej, Institut "Jožef Stefan" (Author)
ID Dragomir, Mirela, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://pubs.acs.org/doi/10.1021/acs.cgd.5c00624
 PDF - Presentation file, download (7,15 MB)
MD5: A5AE8B23FFAFBB12330CBAF45D4012A6
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Single crystals are essential for characterizing a wide range of magnetic states, including exotic ones such as quantum spin liquids. This study reports a flux method for growing single crystals of NdTa7O19, the first quantum spin liquid candidate on a triangular spin-lattice with dominant Ising-like spin correlations. Purple NdTa7O19 single crystals with hexagonal morphology were successfully grown by using a K2Mo3O10–B2O3 flux. With lateral sizes up to 3.5 mm and a thickness up to 2 mm, these are the largest dimensions reported to date. The chemical composition was confirmed by powder and single-crystal X-ray diffraction along with scanning electron microscopy with energy dispersive X-ray spectroscopy. Aiming for an accurate determination of the magnetic anisotropy and its effect on the magnetic properties, NdTa7O19 crystals were additionally analyzed by magnetic susceptibility, revealing a substantial anisotropy without long-range magnetic ordering down to 2 K. Single crystals of two novel rare-earth heptatantalates, ErTa7O19 and GdTa7O19, were also grown, and their magnetic properties investigated. The magnetic anisotropy of ErTa7O19 closely resembles that of isostructural NdTa7O19, indicating the possibility of a similar exotic magnetic ground state. In contrast, GdTa7O19 shows paramagnetic behavior, consistent with previous results obtained for polycrystalline samples. |
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| Keywords: | quantum spin liquid, single-crystal growth, magnetic properties, flux, rare-earth tantalates |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 30.04.2025 |
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| Article acceptance date: | 19.05.2025 |
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| Publication date: | 02.06.2025 |
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| Publisher: | American Chemical Society |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 4646-4654 |
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| Numbering: | Vol. 25, iss. 12 |
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| Source: | ZDA |
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| PID: | 20.500.12556/DiRROS-22972  |
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| UDC: | 546 |
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| ISSN on article: | 1528-7505 |
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| DOI: | 10.1021/acs.cgd.5c00624 |
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| COBISS.SI-ID: | 238455811 |
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| Copyright: | © 2025 The Authors. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji iz Slovenije: Matic Lozinšek, Zvonko Jagličić, Tina Arh, Andrej Zorko, Mirela Dragomir;
Opis vira z dne 5. 6. 2025;
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| Publication date in DiRROS: | 14.07.2025 |
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| Views: | 405 |
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| Downloads: | 294 |
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