Studying Critical Parameters of Superconductor via Diamond Quantum Sensors

• URL: http://arxiv.org/abs/2407.16848v1
• Date: Tue, 23 Jul 2024 21:23:54 GMT
• Title: Studying Critical Parameters of Superconductor via Diamond Quantum Sensors
• Authors: Kin On Ho, Wai Kuen Leung, Yiu Yung Pang, King Yau Yip, Jianyu Xie, Yi Man Liu, Aliki Sofia Rotelli, Man Yin Leung, Ho Yin Chow, Kwing To Lai, Andrej Denisenko, B. Keimer, Jörg Wrachtrup, Sen Yang,
• Abstract summary: We develop the use of a single species of quantum sensor to determine and estimate several critical parameters. We demonstrate the use of diamond particles and a bulk diamond to probe the Meissner effect.
• Score: 2.8505276433658175
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Critical parameters are the key to superconductivity research, and reliable instrumentations can facilitate the study. Traditionally, one has to use several different measurement techniques to measure critical parameters separately. In this work, we develop the use of a single species of quantum sensor to determine and estimate several critical parameters with the help of independent simulation data. We utilize the nitrogen-vacancy (NV) center in the diamond, which recently emerged as a promising candidate for probing exotic features in condensed matter physics. The non-invasive and highly stable nature provides extraordinary opportunities to solve scientific problems in various systems. Using a high-quality single-crystalline YBa$_{2}$Cu$_{4}$O$_{8}$ (YBCO) as a platform, we demonstrate the use of diamond particles and a bulk diamond to probe the Meissner effect. The evolution of the vector magnetic field, the $H-T$ phase diagram, and the map of fluorescence contour are studied via NV sensing. Our results reveal different critical parameters, including lower critical field $H_{c1}$, upper critical field $H_{c2}$, and critical current density $j_{c}$, as well as verifying the unconventional nature of this high-temperature superconductor YBCO. Therefore, NV-based quantum sensing techniques have huge potential in condensed matter research.

Related papers

• Single-Shot Readout and Weak Measurement of a Tin-Vacancy Qubit in Diamond [2.8091212912045185]
  The negatively charged tin-vacancy center in diamond (SnV$-$) is an emerging platform for building the next generation of long-distance quantum networks. Here, we demonstrate measurement of a single SnV$-$ electronic spin with a single-shot readout fidelity of $87.4%$.
  arXiv  Detail & Related papers  (2024-03-19T19:20:45Z)
• Design and simulation of a transmon qubit chip for Axion detection [103.69390312201169]
  Device based on superconducting qubits has been successfully applied in detecting few-GHz single photons via Quantum Non-Demolition measurement (QND) In this study, we present Qub-IT's status towards the realization of its first superconducting qubit device.
  arXiv  Detail & Related papers  (2023-10-08T17:11:42Z)
• Sensitive AC and DC Magnetometry with Nitrogen-Vacancy Center Ensembles in Diamond [0.0]
  We demonstrate the most sensitive nitrogen-vacancy-based bulk magnetometer reported to date. The device does not include a flux concentrator, preserving the fixed response of the NVs to magnetic field.
  arXiv  Detail & Related papers  (2023-05-10T16:02:58Z)
• Probing the Evolution of Electron Spin Wavefunction of NV Center in diamond via Pressure Tuning [3.8020122388139628]
  We use pressure as a tuning method and a nuclear spin as an atomic scale probe to monitor the hyperfine structure of negatively charged nitrogen vacancy (NV) centers in diamonds under pressure. We show that the NV hyperfine parameters have prominent changes, resulting in an increase in the NV electron spin density and rehybridization from $sp3$ to $sp2$ bonds.
  arXiv  Detail & Related papers  (2022-12-15T07:12:51Z)
• 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)
• Quantum probes for the characterization of nonlinear media [50.591267188664666]
  We investigate how squeezed probes may improve individual and joint estimation of the nonlinear coupling $tildelambda$ and of the nonlinearity order $zeta$. We conclude that quantum probes represent a resource to enhance precision in the characterization of nonlinear media, and foresee potential applications with current technology.
  arXiv  Detail & Related papers  (2021-09-16T15:40:36Z)
• Near-Field Terahertz Nanoscopy of Coplanar Microwave Resonators [61.035185179008224]
  Superconducting quantum circuits are one of the leading quantum computing platforms. To advance superconducting quantum computing to a point of practical importance, it is critical to identify and address material imperfections that lead to decoherence. Here, we use terahertz Scanning Near-field Optical Microscopy to probe the local dielectric properties and carrier concentrations of wet-etched aluminum resonators on silicon.
  arXiv  Detail & Related papers  (2021-06-24T11:06:34Z)
• Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride [0.0]
  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.
  arXiv  Detail & Related papers  (2021-02-22T10:52:15Z)
• A multiconfigurational study of the negatively charged nitrogen-vacancy center in diamond [55.58269472099399]
  Deep defects in wide band gap semiconductors have emerged as leading qubit candidates for realizing quantum sensing and information applications. Here we show that unlike single-particle treatments, the multiconfigurational quantum chemistry methods, traditionally reserved for atoms/molecules, accurately describe the many-body characteristics of the electronic states of these defect centers.
  arXiv  Detail & Related papers  (2020-08-24T01:49:54Z)
• Probabilistic magnetometry with two-spin system in diamond [4.965114253725413]
  We show that the hyperfine coupling between the Nitrogen-Vacancy and a nearby Carbon-13 can be used to set a post-selection protocol. We found that for an isotopically purified sample the detection of weak magnetic fields in the $mu$T range can be achieved with a sensitivity of few nTHz$-1/2$ at cryogenic temperature ($4$ K)
  arXiv  Detail & Related papers  (2020-03-26T14:06:46Z)
• Neutron Guide Building Instruments of the Brazilian Multipurpose Reactor (RMB) Project [58.720142291102135]
  We present a standard design requirement of two primordial instruments, namely Sabi'a and Araponga. They are, respectively, cold and thermal neutron instruments and correspond to a Small-Angle Neutron Scattering (SANS) and High-Resolution Powder Neutron Diffractometer (HRPND) We propose here an initial investigation of the use of simple and split guides to transport neutron beams to two different instruments on the same guide.
  arXiv  Detail & Related papers  (2020-03-11T11:57:55Z)

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.