A new tool, called the quantum diamond microscope (QDM), is enabling geologists to sense and map the magnetic fields imprinted in rock grains at scales smaller than the width of a human hair, allowing geologists to tease out history that coarser techniques overlook.

Based on the spectrum technology of nitrogen vacancy system (NV center) in doped diamond, it has super high detection ability, and has a wide and important application prospect in physics, chemistry, biology and other fields. Based on the tenet of sharing and service, we guide some relevant articles according to top journals and authoritative news. You are welcome to leave a message below this article for discussion. If there are any mistakes or omissions in the content, you are also welcome to supplement, criticize and correct the experts and scholars, and jointly improve the service quality of this series of articles.