Broadening of the surface Andreev bound states band of superfluidH3e-Bon a partially specular wall

What is it about?

We demonstrated that surface Andreev bound states (SABS) in the B phase of superfluid 3He is strongly influenced by the boundary condition of a wall. Boundary condition of a wall can be altered in situ by coating the wall with a few atomic layers of 4He. Here, we show that bandwidth of SABS in the surface density of states (SDOS) is broadened on a wall of the larger specularity.

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