标题： 基于色心磁力计的等频自旋波成像用于磁子自旋电子学 显示英文标题

标题： Isofrequency spin-wave imaging using color center magnetometry for magnon spintronics

摘要： 磁子自旋电子学旨在利用磁性薄膜中的自旋波用于信息科技。 色中心磁力测量是一种有前景的成像自旋波的工具，它使用固态材料中原子缺陷相关的电子自旋作为传感器。 然而，仍然存在两个主要限制：用于自旋波控制的磁场会使传感器自旋检测频率失谐，并且该频率进一步受到色中心特性的影响。 在此，我们通过将传感器自旋与自旋波控制场解耦来克服这些限制——选择具有与薄膜磁化方向正交的固有各向异性轴的色中心，并利用金刚石和六方氮化硼中的色中心在互补频率下工作。 我们展示了在磁性半平面中可控磁场的自旋波的等频成像，并说明了固有磁各向异性如何触发双稳态自旋结构，从而在器件边缘控制自旋波传输。 我们的结果确立了色中心磁力测量作为一种推动自旋波技术发展的多功能工具。 显示英文摘要

摘要： Magnon spintronics aims to harness spin waves in magnetic films for information technologies. Color center magnetometry is a promising tool for imaging spin waves, using electronic spins associated with atomic defects in solid-state materials as sensors. However, two main limitations persist: the magnetic fields required for spin-wave control detune the sensor-spin detection frequency, and this frequency is further restricted by the color center nature. Here, we overcome these limitations by decoupling the sensor spins from the spin-wave control fields -selecting color centers with intrinsic anisotropy axes orthogonal to the film magnetization- and by using color centers in diamond and hexagonal boron nitride to operate at complementary frequencies. We demonstrate isofrequency imaging of field-controlled spin waves in a magnetic half-plane and show how intrinsic magnetic anisotropies trigger bistable spin textures that govern spin-wave transport at device edges. Our results establish color center magnetometry as a versatile tool for advancing spin-wave technologies.