"Magnetic Gradient" edge magnetoplasmons in non-uniform magnetic field

• Autor(es): Balev, O. G. ; Larkin, Ivan
• Data: 2013
• Identificador Persistente: http://hdl.handle.net/1822/26875
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): Electron states and collective excitations in multilayers; Quantum wells; Mesoscopic; Nanoscale systems
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

It is shown that laterally inhomogeneous strong magnetic field applied to otherwise spatially homogeneous two-dimensional electron system (2DES) allows "magnetic gradient" or special magnetic-edge magnetoplasmons (MEMPs). This mechanism is different from usual "density gradient" edge magnetoplasmons. Symmetric and antisymmetric families of MEMPs are obtained. They are localized at magnetic field inhomogeneity (magnetic-edge). Both symmetric and antisymmetric MEMPs have the modes of opposite chirality.