Magnetic measurements under high pressure with a quantum sensor in Hexagonal Boron Nitride
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909465073156096 |
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| author | Yu, Lun-Xuan Guo, Nai-Jie Liu, Lin Liu, Wei Yan, Gui-Zhen Cui, Jin-Ming Tang, Jian-Shun Li, Chuan-Feng Liu, Xiao-Di |
| author_facet | Yu, Lun-Xuan Guo, Nai-Jie Liu, Lin Liu, Wei Yan, Gui-Zhen Cui, Jin-Ming Tang, Jian-Shun Li, Chuan-Feng Liu, Xiao-Di |
| contents | Magnetic measurements under high-pressure conditions are pivotal for the study of superconductivity and magnetic materials but remain challenging due to the micrometer-sized sample in diamond anvil cells (DAC). In this study, we propose a quantum sensing approach utilizing negatively charged boron-vacancy (V$_B^-$) spin defects in two-dimensional hexagonal boron nitride for high resolution magnetic measurements under pressure. The optical and spin properties of VB$^-$ defects were systematically studied under high-pressure conditions, revealing a significant pressure-induced shift in zero-field splitting (ZFS), approximately three times larger than that of nitrogen-vacancy (NV) center. Furthermore, we demonstrate the pressure-dependent magnetic transition and variations in the Curie temperature of van der Waals ferromagnet Fe$_3$GeTe$_2$ flake using V$_B^-$ defects under pressures. Notably, the maximum operational pressure for V$_B^-$ defects was determined to be approximately 11 GPa, attributed to a structural phase transition in hexagonal boron nitride (hBN). This work establishes the way for two-dimensional quantum sensing technologies under high-pressure environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_13757 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic measurements under high pressure with a quantum sensor in Hexagonal Boron Nitride Yu, Lun-Xuan Guo, Nai-Jie Liu, Lin Liu, Wei Yan, Gui-Zhen Cui, Jin-Ming Tang, Jian-Shun Li, Chuan-Feng Liu, Xiao-Di Mesoscale and Nanoscale Physics Materials Science Magnetic measurements under high-pressure conditions are pivotal for the study of superconductivity and magnetic materials but remain challenging due to the micrometer-sized sample in diamond anvil cells (DAC). In this study, we propose a quantum sensing approach utilizing negatively charged boron-vacancy (V$_B^-$) spin defects in two-dimensional hexagonal boron nitride for high resolution magnetic measurements under pressure. The optical and spin properties of VB$^-$ defects were systematically studied under high-pressure conditions, revealing a significant pressure-induced shift in zero-field splitting (ZFS), approximately three times larger than that of nitrogen-vacancy (NV) center. Furthermore, we demonstrate the pressure-dependent magnetic transition and variations in the Curie temperature of van der Waals ferromagnet Fe$_3$GeTe$_2$ flake using V$_B^-$ defects under pressures. Notably, the maximum operational pressure for V$_B^-$ defects was determined to be approximately 11 GPa, attributed to a structural phase transition in hexagonal boron nitride (hBN). This work establishes the way for two-dimensional quantum sensing technologies under high-pressure environments. |
| title | Magnetic measurements under high pressure with a quantum sensor in Hexagonal Boron Nitride |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2501.13757 |