Cryogenic optically detected magnetic resonance (ODMR) platform based on all-room-temperature scanning systems.

The article focuses on the development of a cryogenic optically detected magnetic resonance (ODMR) platform that employs all room-temperature scanning systems to overcome limitations of traditional cryogenic scanners, such as restricted scanning range, low load capacity, and instability. This platform enables stable operation across a broad temperature range (300 to 10.6 K) and offers a large positioner motion range exceeding 5 cm, facilitating extensive magnetic field scanning (50 to 5000 Gauss) suitable for quantum sensing applications using nitrogen-vacancy (NV) centers in diamond. The design incorporates thermal management strategies, including copper thermal straps and a specialized sample mount, to ensure high microwave efficiency and thermal isolation, resulting in enhanced temperature stability, positional precision (vibrations below 50 nm), and magnetic field stability. The system's versatility extends to other quantum platforms, such as spin defects in silicon carbide, making it valuable for investigating condensed matter phenomena like two-dimensional ferromagnetism and current transport dynamics at cryogenic temperatures.