Probing the Quantum Noise of the Spinon Fermi Surface with NV Centers
We study the transverse electrical conductivity and the corresponding magnetic noise of a two-dimensional U(1) spin liquid state with a spinon Fermi surface. We show that in the quasi-static regime these responses have the same wave-vector dependence as that of a metal but are reduced by a dimension...
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Main Authors: | , , , |
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Format: | Journal Article |
Language: | English |
Published: |
13-05-2022
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Subjects: | |
Online Access: | Get full text |
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Summary: | We study the transverse electrical conductivity and the corresponding
magnetic noise of a two-dimensional U(1) spin liquid state with a spinon Fermi
surface. We show that in the quasi-static regime these responses have the same
wave-vector dependence as that of a metal but are reduced by a dimensionless
pre-factor controlled by the ratio of orbital diamagnetic susceptibilities of
the spinons and chargons, correcting previous work. We estimate that this
quasi-static regime is comfortably accessed by the typical NV center splittings
of a few GHz and estimate that the expected T1 times for an NV center placed
above candidate materials, such as the organic dmit and ET salts, monolayer
1T-TaS2/Se2, would range from several tens to a few hundred milliseconds. |
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DOI: | 10.48550/arxiv.2205.06822 |