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But this is exactly what the UCSB Quantum Sensing and Imaging Research Group has implemented. Members of the physicist Ania Jayich Labs have developed a new sensor technology for two years with nanoscale spatial resolution and refined sensitivity. Their results have been published in the journal Nature.
"This is the first such tool," said Jayich, professor of science and engineering at UCSB, deputy director of the School's Materials Research Laboratory. “It operates from room temperature to low temperature, and many interesting physical phenomena occur at low temperatures. For example, when the heat is low enough, the result of the electron interaction can be observed, which leads to a new physical phase. Now we can use it like never before. The spatial resolution to detect these."
Under the microscope, the unique single-spin quantum sensor is similar to a toothbrush. Each "hair" contains a single, solid nanodiamond crystal with a special defect at the top, the center of the nitrogen vacancy (NV). In the carbon lattice of a diamond, two adjacent atoms are missing, one of which is filled with nitrogen atoms, which can sense specific material properties, especially magnetic sensing. These sensors are manufactured in the clean room of UCSB.
The research team selected a relatively good superconducting material that contained a magnetic mechanism called a vortex-magnetic flux localized region. Researchers can use their instruments to image a single eddy current.
"Our tool is a quantum sensor because it relies on magical quantum mechanics," Jayich explained. "We put the NV defect in a quantum superposition state, it can be a state or another - we don't know, then we let the system develop and measure under field effect. The uncertainty of this superposition makes the measurement."
Such quantum behavior is often associated with low temperature environments. However, the research team's professional quantum instruments work at room temperature and 6 Kelvin (about 450 ° F), making it very flexible and unique, and can be used to study various phase materials and related phase transitions.
“Many other microscope tools don't have such a wide range of operating temperatures,†Jayich explained. “Another highlight of our tool is its excellent spatial resolution because the sensor consists of a single atom. In addition, its size makes it non-invasive, which means it can minimally affect the material system. Basic physical properties."
The research team is currently imaging the "Sigmington", a quasi-particle of the magnetic vortex structure, which is a huge attraction for future data storage and spintronics. Their goal is to use the nanoscale spatial resolution of the instrument to determine the relative strength of the competitive interactions that cause the "Smegm". "There are many different interactions between atoms, and you need to understand all of these interactions before you can predict the behavior of the material," Jayich said.
“If you can imagine the size of the material domains and how they evolved on a small scale, then you can understand the value and strength of these interactions,†he added. “In the future, this tool will help to understand the nature and strength of material interactions, and then bring interesting new material states and material phases, which are not only beneficial to basic physics, but also to technology.†(Industrial and Institute of Electronic Science and Technology Information, Ministry of Information Technology)
The United States successfully developed a quantum sensor to achieve nano-scale refined imaging
Abstract [According to the Solid Technology website reported on May 6, 2016] If you use an atom to capture high-resolution images of nanomaterials sounds like science fiction. But this is exactly what the UCSB Quantum Sensing and Imaging Research Group has implemented...
[According to the Solid Technology website reported on May 6, 2016] If you use an atom to capture high-resolution images of nanomaterials sounds like science fiction.