NV Center ODMR Unlocks New Possibilities for 2D Materials and Spin Wave Detection
NV Center ODMR Unlocks New Possibilities for 2D Materials and Spin Wave Detection In short Three research teams used CIQTEK ODMR instruments, including the scanning NV probe microscope (SNVM) and the diamond single-spin spectrometer, to move three different areas of advanced materials research forward. A team at the Institute of Physics, Chinese Academy of Sciences, imaged spin waves in real space near magnetic defects and antiferromagnetically coupled stripe domains in YIG and LSMO films. They captured wavelength-selective scattering and, for the first time, a zig-zag wavefront distortion as spin waves crossed stripe domains. A team at the University of Science and Technology of China stripped selenium out of 2D CuCrSe₂ by vacuum annealing. The resulting Se vacancies produced room-temperature ferromagnetism while the layered crystal structure stayed intact. A team at the Institute of Semiconductors, Chinese Academy of Sciences, mapped how a transverse magnetic field mixes NV center spin states, weakens optical readout, and shifts the balance between the NV⁻ and NV⁰ charge states, all of which matter for keeping NV-based sensors stable in real-world magnetic environments. Why this matters Optically detected magnetic resonance (ODMR) sits at the center of solid-state spin science. It is how researchers image microscopic magnetic fields, how they unpack spin dynamics, and how they turn a single atomic-scale defect in diamond into a working sensor. The three studies below all leaned on CIQTEK's ODMR product line, which includes the scanning NV probe microscope (SNVM) and the diamond single-spin spectrometer, to push into territory that older tools could not reach: spin wave imaging, room-temperature ferromagnetism in 2D materials, and the spin mixing behavior of NV centers themselves. Here is what each team found, and why it matters for anyone building magnonic devices, spintronic materials, or diamond-based sensors. Study 1: Scanning NV imaging reveals how spin waves actually propagate Where it was published: SCIENCE CHINA Physics, Mechanics & Astronomy Paper title: Visualizing modified spin-wave wavefronts near magnetic defects and domains using nitrogen-vacancy centers Research group: The Li Yangmu group at the Institute of Physics, Chinese Academy of Sciences The team used scanning NV imaging to perform real-space imaging and phase analysis of spin wave propagation and wavefronts near nanoscale magnetic defects and antiferromagnetically coupled stripe domains in magnetic thin films (YIG and LSMO). The work revealed wavelength-selective scattering and waveform modulation, giving device designers a new set of tools for building and tuning spin wave devices. First, some background: why spin waves are hard to see Spin waves, also called magnons, are collective excitations of a magnetically ordered system. They carry information without the Joule heating losses that come with conventional charge-based devices, which makes them an attractive carri...
September 16, 2026
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