Highlights
Controlling skyrmion size in the alloy FePd1−xPtxMo3N

After discovering a new magnetic host of skyrmion states, UC Santa Barbara IRG-1 researchers were able to show that chemically alloying the compound FePd1−xPtxMo3N allows for the size of the skyrmion defects to be controlled while still preserving their stability. Skyrmion states are broadly sought in new materials due to their potential uses in low power memory devices and other spin-based electronics.

Left: Crystal structure of FePd1−xPtxMo3N. Right: Magnetic phase diagram of FePtMo3N showing the emergence of a skyrmion state in the “A” region. FD shows the fluctuation disordered regime.
Left: Crystal structure of FePd1−xPtxMo3N. Right: Magnetic phase diagram of FePtMo3N showing the emergence of a skyrmion state in the “A” region. FD shows the fluctuation disordered regime.
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Materials Research Science and Engineering Center at UCSB

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