The United States has developed a new method to detect the magnetic characteristics of nanomaterials
A few days ago, the Rensselaer Polytechnic Institute announced that researchers successfully embedded cobalt nanostructures with a diameter of 1 nanometer to 10 nanometers in multilayer carbon nanotubes, and developed a new method to detect the magnetic characteristics of nanomaterials .
After a series of experiments, the researchers finally determined that the hybrid structure made of cobalt nanomaterials and carbon nanotubes had sufficient conductivity sensitivity and could be used to detect the magnetic behavior of tiny magnetic materials such as cobalt nanostructures. It is reported that this is the first time that researchers have demonstrated the technology of using independent carbon nanotubes to detect the magnetic field of tiny magnetic materials. Related reports are published in the newly published "Nano Express".
When people's common materials are as small as nanometers, they exhibit interesting and useful new features. An important challenge facing nanotechnology is to understand these new features, that is, changes in characteristics. The magnetic change of the magnetic material is closely related to the change of the size of the material itself. In the past, the difficult measurement of the magnetic change of the nanomaterials has affected people's in-depth research on this subject.
"Because in our hybrid materials, cobalt nanostructures are embedded in carbon nanotubes instead of on their surfaces, they will not cause electron scattering and will not affect the conduction properties of the carbon nanotube host." Ren Si Swassick Carr, assistant professor and research leader in the Department of Physics, Applied Physics, and Astronomy at the Lille Institute of Technology, said, "Basically, this hybrid nanostructure belongs to a new class of magnetic materials."
Associate Professor Sagi Nayak believes that this new hybrid nanostructure not only creates new methods for basic and applied physical research, but also hopes to help people use magnetic degrees of freedom to pave the way for increasing the electrical functions of carbon nanotubes . Potential applications of this hybrid structure include new nanoscale conductive sensors, new electronic storage devices, spintronic devices, and human body directed drug micro-conveyor components.
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