PreprintarXiv licencearXiv
High-pressure phase transitions in the quantum spin liquid candidate Na2Co2TeO6 probed by Raman spectroscopy
Abstract
The quasi-2D magnet Na2Co2TeO6 (NCTO) is a candidate for a Kitaev Quantum Spin Liquid (KQSL) state. Pressure-tuning in such materials is of interest as a potential method to tune the Kitaev exchange interactions, which are strongly dependent on bond geometry. Here we report a Raman spectroscopic study of NCTO inside a diamond anvil cell (DAC) with pressure applied up to 16.3 GPa. Based on the changes in the Raman modes, this pressure range is divided into three regions. The appearance and disappearance of several modes and changes in the polarization dependence of the representative modes, most prominently above 13.8 GPa, point to pressure-induced phase transitions in this material.
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BibTeX
@misc{kolasseri2026highpressure,
title = {{High-pressure phase transitions in the quantum spin liquid candidate Na2Co2TeO6 probed by Raman spectroscopy}},
author = {Ihsan Ahmed Kolasseri and Maria Mei Ravnebæk and Subhadip Das and Carl Jonas Linnemann and Haidong Zhou and Christian Frydendahl and Martin Bremholm and Yong P. Chen},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2608.25076},
eprint = {2608.25076},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.25076},
}
RIS
TY - UNPB
TI - High-pressure phase transitions in the quantum spin liquid candidate Na2Co2TeO6 probed by Raman spectroscopy
AU - Ihsan Ahmed Kolasseri
AU - Maria Mei Ravnebæk
AU - Subhadip Das
AU - Carl Jonas Linnemann
AU - Haidong Zhou
AU - Christian Frydendahl
AU - Martin Bremholm
AU - Yong P. Chen
PY - 2026
DA - 2026/10/12
PB - arXiv
DO - 10.48550/arxiv.2608.25076
UR - https://arxiv.org/abs/2608.25076
AB - The quasi-2D magnet Na2Co2TeO6 (NCTO) is a candidate for a Kitaev Quantum Spin Liquid (KQSL) state. Pressure-tuning in such materials is of interest as a potential method to tune the Kitaev exchange interactions, which are strongly dependent on bond geometry. Here we report a Raman spectroscopic study of NCTO inside a diamond anvil cell (DAC) with pressure applied up to 16.3 GPa. Based on the changes in the Raman modes, this pressure range is divided into three regions. The appearance and disappearance of several modes and changes in the polarization dependence of the representative modes, most prominently above 13.8 GPa, point to pressure-induced phase transitions in this material.
ER -