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...

CIQTEK Lists on the Shanghai STAR Market CIQTEK held its listing ceremony at the Shanghai Stock Exchange on August 11, 2026. The listing marks a new stage for the company as it continues to develop high-end scientific instruments. The company trades under stock code 688828 and develops, manufactures, and sells products including electron microscopes, electron paramagnetic resonance spectrometers, and nuclear magnetic resonance spectrometers.   Listing Information CIQTEK issued 40.0100 million shares at RMB 21.22 per share. The gross proceeds from the new share offering were RMB 849.0122 million. Following the offering, the company had 400.0100 million shares outstanding. In 2025, CIQTEK reported revenue of RMB 666.191845 million. The company is based in Hefei, Anhui Province.   From Research to Real-World Use CIQTEK focuses on turning research capabilities into instruments that can be used in laboratories and industrial settings. At the ceremony, Dr. He Yu, Chairman of CIQTEK, said the listing is an important milestone and a stage in the company’s journey from the laboratory to real-world use. Dr. He thanked customers, partners, investors, and the teams that supported the offering and listing process.   A Focus on Useful, Reliable Instruments CIQTEK develops high-end scientific instruments across several product areas. The company continues to invest in research and development and to expand its product portfolio around customer needs. Dr. He said that customer feedback, technical problem-solving, and reliable delivery are central to the company’s long-term improvement. CIQTEK will continue to advance projects funded by the offering and strengthen transparent, standardized governance.   Looking Ahead Dr. He noted that better measurement tools support scientific discovery and that high-quality data remains essential as artificial intelligence changes the way research is done. CIQTEK will continue to build instruments for researchers and industrial users around the world. “We will stay focused, keep improving over the long term, and move forward steadily,” Dr. He said in closing.   Reprint Note The opening and “Listing Information” sections are reprinted from a Shanghai Stock Exchange public release. The remaining sections are adapted from an original address by Dr. He Yu, Chairman of CIQTEK, delivered at the listing ceremony.

The CIQTEK DB550 dual-beam FIB-SEM brings together high-resolution electron imaging and precision ion beam processing on a single platform. CIQTEK has validated its DB550 Focused Ion Beam Scanning Electron Microscope (FIB-SEM) on real 5nm process node chip samples, demonstrating production-ready TEM sample preparation with intact fin structures, zero amorphization, and clearly resolved film layers. The results confirm that the DB550 meets the exacting demands of advanced semiconductor failure analysis labs working at the cutting edge of process technology. In advanced chip research and manufacturing, two tools matter above all others. The Transmission Electron Microscope (TEM) lets you see structures at the atomic scale. But before you can look, you need a sample thin enough for electrons to pass through. That is where the dual-beam FIB-SEM comes in. It is the precision workshop that prepares those ultra-thin specimens. Meet the DB550: One Platform for Imaging and Nanoscale Processing The CIQTEK DB550 FIB-SEM integrates two powerful capabilities onto a single platform. On one side, a scanning electron microscope (SEM) delivers high-resolution surface imaging. On the other, a focused ion beam (FIB) performs nanoscale material removal with surgical precision. Together, they bridge the gap between observation and fabrication at dimensions measured in billionths of a meter. At the heart of the DB550 sits a low-voltage, high-resolution electron column paired with CIQTEK's proprietary "Chengying" ion column, developed entirely in-house. The Chengying column is the engine behind the system's nanoscale cutting and etching capabilities. CIQTEK controls the full design and manufacturing pipeline for this critical component. The 5nm Challenge: Why Sample Preparation Gets Harder at Every Node At 5nm and below, chip architectures rely on fin-type field-effect transistors (FinFETs) with fin widths and pitches measured in just a few nanometers. The DB550 is designed to handle the full sample preparation workflow for these demanding process nodes. It starts with high-current rough cutting to quickly remove bulk material and reach the target region. Then it transitions to low-voltage fine polishing to thin the sample to TEM-ready dimensions without damaging the delicate structures underneath. TEM Validation: The Proof Is in the Image CIQTEK prepared a 5nm process node chip sample on the DB550 and transferred it to a TEM for characterization. The results speak for themselves. TEM characterization of a 5nm chip sample prepared on the DB550 shows intact fin structures with clear, well-defined film layers and no amorphization damage. The TEM images revealed that the fin structures remained completely intact after FIB preparation. There was no detectable amorphization in the silicon crystal lattice. The individual film layers appeared clear and sharply defined in the TEM cross-section. These results validate the dual-beam sample preparation performance of the DB550 on...