Noninvasive magnetic detection of 2D van der Waals room-temperature ferromagnet Fe3GaTe2 using divacancy spins in SiC

• URL: http://arxiv.org/abs/2406.02346v1
• Date: Tue, 4 Jun 2024 14:21:56 GMT
• Title: Noninvasive magnetic detection of 2D van der Waals room-temperature ferromagnet Fe3GaTe2 using divacancy spins in SiC
• Authors: Xia Chen, Qin-Yue Luo, Pei-Jie Guo, Hao-Jie Zhou, Qi-Cheng Hu, Hong-Peng Wu, Xiao-Wen Shen, Ru-Yue Cui, Lei Dong, Tian-Xing Wei, Yu-Hang Xiao, De-Ren Li, Li Lei, Xi Zhang, Jun-Feng Wang, Gang Xiang,
• Abstract summary: Two-dimensional (2D) van der Waals (vdW) ferromagnets hold immense promise for next-generation spintronic devices. In this work, we realize noninvasive in situ magnetic detection in vdW-layered ferromagnet Fe3GaTe2.
• Score: 8.47315490635433
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Room-temperature (RT) two-dimensional (2D) van der Waals (vdW) ferromagnets hold immense promise for next-generation spintronic devices for information storage and processing. To achieve high-density energy-efficient spintronic devices, it is essential to understand local magnetic properties of RT 2D vdW magnets. In this work, we realize noninvasive in situ magnetic detection in vdW-layered ferromagnet Fe3GaTe2 using divacancy spins quantum sensor in silicon carbide (SiC) at RT. The structural features and magnetic properties of the Fe3GaTe2 are characterized utilizing Raman spectrum, magnetization and magneto-transport measurements. Further detailed analysis of temperature- and magnetic field-dependent optically detected magnetic resonances of the PL6 divacancy near the Fe3GaTe2 reveal that, the Curie temperature (Tc) of Fe3GaTe2 is ~360K, and the magnetization increases with external magnetic fields. Additionally, spin relaxometry technology is employed to probe the magnetic fluctuations of Fe3GaTe2, revealing a peak in the spin relaxation rate around Tc. These experiments give insights into the intriguing local magnetic properties of 2D vdW RT ferromagnet Fe3GaTe2 and pave the way for the application of SiC quantum sensors in noninvasive in situ magnetic detection of related 2D vdW magnets.

Related papers

• 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)
• Non-volatile Electric Control of Magnetic and Topological Properties of MnBi2Te4 Thin Films [66.02797153096846]
  We propose a mechanism to control the magnetic properties of topological quantum material (TQM) by using magnetoelectric coupling. This mechanism uses a heterostructure of TQM with two-dimensional (2D) ferroelectric material.
  arXiv  Detail & Related papers  (2022-12-29T14:51:05Z)
• 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)
• Van der Waals Magnet based Spin-Valve Devices at Room Temperature [0.17126708168238122]
  We demonstrate room temperature spin-valve devices using vdW itinerantmagnet Fe5GeTe2 in ferrostructures with graphene. The tunnel spin polarization of the Fe5GeTe2/graphene vdW interface is detected to be significantly large 45 % and negative at room temperature. These findings open opportunities for the applications of vdW magnet-based all-2D spintronic devices and integrated spin circuits at ambient temperatures.
  arXiv  Detail & Related papers  (2021-07-01T08:58:36Z)
• 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)
• Surpassing the Energy Resolution Limit with ferromagnetic torque sensors [55.41644538483948]
  We evaluate the optimal magnetic field resolution taking into account the thermomechanical noise and the mechanical detection noise at the standard quantum limit. We find that the Energy Resolution Limit (ERL), pointed out in recent literature, can be surpassed by many orders of magnitude.
  arXiv  Detail & Related papers  (2021-04-29T15:44:12Z)
• Tuning resonance energy transfer with magneto-optical properties of graphene [0.0]
  We investigate the resonance energy transfer rate between two quantum emitters near a suspended graphene sheet in vacuum. Due to the extraordinary magneto-optical response of graphene, it allows for an active control and tunability of the RET. Our results suggest that magneto-optical media may take the manipulation of energy transfer between quantum emitters to a whole new level.
  arXiv  Detail & Related papers  (2020-10-19T20:15:55Z)
• Ferromagnetic Gyroscopes for Tests of Fundamental Physics [49.853792068336034]
  A ferromagnetic gyroscope (FG) is a ferromagnet whose angular momentum is dominated by electron spin polarization and that will precess under the action of an external torque. We model and analyze FG dynamics and sensitivity, focusing on practical schemes for experimental realization.
  arXiv  Detail & Related papers  (2020-10-17T07:13:50Z)
• Magnetic domains and domain wall pinning in two-dimensional ferromagnets revealed by nanoscale imaging [1.614014297785306]
  We employ cryogenic scanning magnetometry using a single-electron spin of a nitrogen-vacancy center in a diamond probe to unambiguously prove the existence of magnetic domains. The high spatial resolution of this technique enables imaging of magnetic domains and allows to resolve domain walls pinned by defects.
  arXiv  Detail & Related papers  (2020-09-28T16:07:07Z)
• Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions [85.83811987257297]
  We study the coupling of pure and magnetically diluted crystals of HoW$_10$ magnetic clusters to microwave superconducting coplanar waveguides. Results show that engineering spin-clock states of molecular systems offers a promising strategy to combine sizeable spin-photon interactions with a sufficient isolation from unwanted magnetic noise sources.
  arXiv  Detail & Related papers  (2019-11-18T11:03:06Z)

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.