High-quality single crystalline niobium films are grown on a-plane sapphire in molecular beam epitaxy.The film is single crystalline with a (110) orientation,an
Using scanning tunneling microscopy we observe a stripe phase smoothly interfacing with a triangular 2 × 2 superstructure on the surface of 2H-NbSe2 single cry
Evolution of a non-neutral cold electron positron plasma slab is investigated.Initially the slab consists of a quasineutral plasma core bounded on both sides by