Abstract

We have theoretically performed that Fe endohedral-doped boron fullerene (B80) is a potential single molecular device with tunable electronic and magnetic properties. Both the energy gap and magnetic moment of the Fe endohedral-doped B80 can be greatly tuned, simultaneously by changing the position of the Fe atom inside the hollow cage of B80. In comparison with that of the Fe endohedral-doped B80 with Fe atom located at center-at, the energy gap decreases half and the magnetic moment decreases zero for the case of the Fe endohedral-doped B80 with the Fe atom located at hexagon-in in the hollow cage. These fascinating findings imply that the Fe endohedral-doped B80 with tunable electronic and magnetic properties can be expected to be applicable as a single molecular device.

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