Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride

• URL: http://arxiv.org/abs/2102.10890v1
• Date: Mon, 22 Feb 2021 10:52:15 GMT
• Title: Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride
• Authors: Andreas Gottscholl, Matthias Diez, Victor Soltamov, Christian Kasper, Andreas Sperlich, Mehran Kianinia, Carlo Bradac, Igor Aharonovich and Vladimir Dyakonov
• Abstract summary: We show that negatively charged boron vacancies ($V_B-$) in hexagonal boron nitride (hBN) can be used as atomic scale sensors. These applications are possible due to the high-spin triplet ground state and bright spin-dependent photoluminescence. Our work is important for the future use of spin-rich hBN layers as sensors in heterostructures of functionalized 2D materials.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Spin defects in solid-state materials are strong candidate systems for quantum information technology and sensing applications. Here we explore in details the recently discovered negatively charged boron vacancies ($V_B^-$) in hexagonal boron nitride (hBN) and demonstrate their use as atomic scale sensors for temperature, magnetic fields and externally applied pressure. These applications are possible due to the high-spin triplet ground state and bright spin-dependent photoluminescence (PL) of the $V_B^-$. Specifically, we find that the frequency shift in optically detected magnetic resonance (ODMR) measurements is not only sensitive to static magnetic fields, but also to temperature and pressure changes which we relate to crystal lattice parameters. Our work is important for the future use of spin-rich hBN layers as intrinsic sensors in heterostructures of functionalized 2D materials.

Related papers

• Ultralight dark matter detection with levitated ferromagnets [39.9821498525859]
  We study the response of a levitated ferromagnet to an applied AC magnetic field. We show that existing levitated ferromagnet setups can already have comparable sensitivity to an axion-electron coupling. Future setups can become sensitive probes of axion-electron coupling, dark-photon kinetic mixing, and axion-photon coupling.
  arXiv  Detail & Related papers  (2024-08-27T18:00:03Z)
• Quantum control and Berry phase of electron spins in rotating levitated diamonds in high vacuum [40.27879500842531]
  Levitated diamond particles in high vacuum with internal spin qubits have been proposed for exploring quantum mechanics. We fabricate an integrated surface ion trap with multiple stabilization electrodes. This facilitates on-chip levitation and, for the first time, optically detected magnetic resonance measurements of a nanodiamond levitated in high vacuum.
  arXiv  Detail & Related papers  (2023-09-11T20:56:09Z)
• Imaging magnetism evolution of magnetite to megabar pressure range with quantum sensors in diamond anvil cell [57.91882523720623]
  We develop an in-situ magnetic detection technique at megabar pressures with high sensitivity and sub-microscale spatial resolution. We observe the macroscopic magnetic transition of Fe3O4 in the megabar pressure range from strong ferromagnetism (alpha-Fe3O4) to weak ferromagnetism (beta-Fe3O4) and finally to non-magnetism (gamma-Fe3O4) The presented method can potentially investigate the spin-orbital coupling and magnetism-superconductivity competition in magnetic systems.
  arXiv  Detail & Related papers  (2023-06-13T15:19:22Z)
• Quantum sensing of paramagnetic spins in liquids with spin qubits in hexagonal boron nitride [2.499049669532588]
  We show that spin qubits in hexagonal boron nitride (hBN), a layered van der Waals (vdW) material, can serve as a promising sensor for nanoscale detection of paramagnetic spins in liquids. We create shallow spin defects in close proximity to the hBN surface, which sustain high-contrast optically detected magnetic resonance (ODMR) in liquids. Our results demonstrate the potential of ultrathin hBN quantum sensors for chemical and biological applications.
  arXiv  Detail & Related papers  (2023-03-04T05:11:56Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Magnetic detection under high pressures using designed silicon vacancy centers in silicon carbide [15.249039627065036]
  In situ pressure-induced magnetic phase transition has been detected using optically detected magnetic resonance (ODMR) Here, we characterize the optical and spin properties of the implanted silicon vacancy defects in 4H-SiC, which is single-axis and temperature-independent zero-field-splitting. These experiments pave the way for the silicon vacancy-based quantum sensor being used in situ magnetic detection at high pressures.
  arXiv  Detail & Related papers  (2022-08-28T08:33:18Z)
• DC Quantum Magnetometry Below the Ramsey Limit [68.8204255655161]
  We demonstrate quantum sensing of dc magnetic fields that exceeds the sensitivity of conventional $Tast$-limited dc magnetometry by more than an order of magnitude. We used nitrogen-vacancy centers in a diamond rotating at periods comparable to the spin coherence time, and characterize the dependence of magnetic sensitivity on measurement time and rotation speed.
  arXiv  Detail & Related papers  (2022-03-27T07:32:53Z)
• High-Field Magnetometry with Hyperpolarized Nuclear Spins [0.0]
  We propose and demonstrate a high-field spin magnetometer constructed from an ensemble of hyperpolarized $13C$ nuclear spins in diamond. For quantum sensing at 7T and a single crystal sample, we demonstrate spectral resolution better than 100 mHz. This work points to interesting opportunities for microscale NMR chemical sensors constructed from hyperpolarized nanodiamonds.
  arXiv  Detail & Related papers  (2021-12-22T01:33:07Z)
• Rapidly enhanced spin polarization injection in an optically pumped spin ratchet [49.1301457567913]
  We report on a strategy to boost the spin injection rate by exploiting electrons that can be rapidly polarized. We demonstrate this in a model system of Nitrogen Vacancy center electrons injecting polarization into a bath of 13C nuclei in diamond. Through a spin-ratchet polarization transfer mechanism, we show boosts in spin injection rates by over two orders of magnitude.
  arXiv  Detail & Related papers  (2021-12-14T08:23:10Z)
• AC susceptometry of 2D van der Waals magnets enabled by the coherent control of quantum sensors [4.103177660092151]
  We coherently control the NV center's spin precession to achieve ultra-sensitive ac susceptometry of a 2D ferromagnet. We show that domain wall mobility is enhanced in ultrathin CrBr3, with minimal decrease for frequencies exceeding hundreds of kilohertz. Our technique extends NV magnetometry to the multi-functional ac and dc magnetic characterization of wide-ranging spintronic materials at the nanoscale.
  arXiv  Detail & Related papers  (2021-05-17T17:28:46Z)
• Room Temperature Coherent Control of Spin Defects in hexagonal Boron Nitride [0.0]
  Optically active defects in solids with accessible spin states are promising candidates for solid state quantum information and sensing applications. We realize coherent control of ensembles of boron vacancy centers in hexagonal boron nitride (hBN) Our results are important for employment of van der Waals materials for quantum technologies.
  arXiv  Detail & Related papers  (2020-10-23T16:31:37Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.