Year: 2025
Type: article
Abstract: 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.
Source: Nature Communications
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $6,990
Awards: G1187630603, G127156130, G2873784832, Nanoscale imaging of charge transport in quantum materials – Nice-TRAQ, G594963403, G6293982872, G6757593912, G6977755038, Broadband quantum sensing of microwaves using spins in diamond via magnetic frequency conversion, NSF-ANR QISE:Hexagonal Boron Nitride Quantum Sensors, On the move: Imaging propagating spin waves in two-dimensional magnets
OpenAlex ID: W4417266206