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Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br
Mutual interactions in many-body systems bring about various exotic phases, among which liquid-like states failing to order due to frustration are of keen interest. The organic system with an anisotropic triangular lattice of molecular dimers, κ-(ET)(2)Hg(SCN)(2)Br, has been suggested to host a dipo...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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American Association for the Advancement of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9771449/ https://www.ncbi.nlm.nih.gov/pubmed/36542712 http://dx.doi.org/10.1126/sciadv.abn1680 |
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author | Urai, Mizuki Miyagawa, Kazuya Watanabe, Yuta Zhilyaeva, Elena I. Torunova, Svetlana A. Lyubovskaya, Rimma N. Drichko, Natalia Kanoda, Kazushi |
author_facet | Urai, Mizuki Miyagawa, Kazuya Watanabe, Yuta Zhilyaeva, Elena I. Torunova, Svetlana A. Lyubovskaya, Rimma N. Drichko, Natalia Kanoda, Kazushi |
author_sort | Urai, Mizuki |
collection | PubMed |
description | Mutual interactions in many-body systems bring about various exotic phases, among which liquid-like states failing to order due to frustration are of keen interest. The organic system with an anisotropic triangular lattice of molecular dimers, κ-(ET)(2)Hg(SCN)(2)Br, has been suggested to host a dipole liquid arising from intradimer charge-imbalance instability, possibly offering an unprecedented stage for the spin degrees of freedom. Here, we show that an extraordinary unordered/unfrozen spin state having soft matter–like spatiotemporal characteristics emerges in this system. (1)H nuclear magnetic resonance (NMR) spectra and magnetization measurements indicate that gigantic, staggered moments are nonlinearly and inhomogeneously induced by a magnetic field, whereas the moments vanish in the zero-field limit. The analysis of the NMR relaxation rate signifies that the moments fluctuate at a characteristic frequency slowing down to below megahertz at low temperatures. The inhomogeneity, local correlation, and slow dynamics indicative of middle-scale dynamical correlation length of several nanometers suggest novel frustration-driven spin clusterization. |
format | Online Article Text |
id | pubmed-9771449 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-97714492022-12-28 Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br Urai, Mizuki Miyagawa, Kazuya Watanabe, Yuta Zhilyaeva, Elena I. Torunova, Svetlana A. Lyubovskaya, Rimma N. Drichko, Natalia Kanoda, Kazushi Sci Adv Research Articles Mutual interactions in many-body systems bring about various exotic phases, among which liquid-like states failing to order due to frustration are of keen interest. The organic system with an anisotropic triangular lattice of molecular dimers, κ-(ET)(2)Hg(SCN)(2)Br, has been suggested to host a dipole liquid arising from intradimer charge-imbalance instability, possibly offering an unprecedented stage for the spin degrees of freedom. Here, we show that an extraordinary unordered/unfrozen spin state having soft matter–like spatiotemporal characteristics emerges in this system. (1)H nuclear magnetic resonance (NMR) spectra and magnetization measurements indicate that gigantic, staggered moments are nonlinearly and inhomogeneously induced by a magnetic field, whereas the moments vanish in the zero-field limit. The analysis of the NMR relaxation rate signifies that the moments fluctuate at a characteristic frequency slowing down to below megahertz at low temperatures. The inhomogeneity, local correlation, and slow dynamics indicative of middle-scale dynamical correlation length of several nanometers suggest novel frustration-driven spin clusterization. American Association for the Advancement of Science 2022-12-21 /pmc/articles/PMC9771449/ /pubmed/36542712 http://dx.doi.org/10.1126/sciadv.abn1680 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Urai, Mizuki Miyagawa, Kazuya Watanabe, Yuta Zhilyaeva, Elena I. Torunova, Svetlana A. Lyubovskaya, Rimma N. Drichko, Natalia Kanoda, Kazushi Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title | Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title_full | Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title_fullStr | Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title_full_unstemmed | Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title_short | Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)(2)Hg(SCN)(2)Br |
title_sort | anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(et)(2)hg(scn)(2)br |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9771449/ https://www.ncbi.nlm.nih.gov/pubmed/36542712 http://dx.doi.org/10.1126/sciadv.abn1680 |
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