magnetism is a fundamental property of materials that arises from the spin of electrons. In a magnetic material, the spins of the electrons are aligned in a particular direction, creating a magnetic field. The strength and direction of the magnetic field depend on the number of aligned spins and their orientation.
One way to change the magnetic properties of a material is to apply pressure. Pressure can change the distance between atoms and molecules, which can in turn change the interactions between the spins of the electrons. This can lead to changes in the strength and direction of the magnetic field.
In their study, the researchers used a technique called "diamond anvil cell" to apply pressure to a magnetic material. The diamond anvil cell consists of two opposing diamond anvils that are used to compress a small sample of the material. The researchers used a synchrotron X-ray source at the ALS to probe the magnetic properties of the material under pressure.
The researchers found that the magnetic properties of the material changed significantly under pressure. They were able to continuously tune the magnetic properties of the material by varying the pressure. This demonstrates that pressure can be used to actively control the magnetic properties of materials.
The ability to actively change the magnetic properties of materials has important implications for the development of new materials with tunable magnetic properties. Such materials could be used in a variety of applications, including magnetic sensors, actuators, and memory devices. The researchers believe that their findings could open up new avenues for the design and development of advanced magnetic materials.
