Abstract:
A study is made of a three-dimensional Schrödinger operator with magnetic field and perturbed by a periodic sum of zero-range potentials. In the case of a rational flux, the explicit form of the decomposition of the resolvent of this operator with respect to the spectrum of irreducible representations of the group of magnetic translations is found. In the case of integer flux, the explicit form of the dispersion laws is found, the spectrum is described, and a qualitative investigation of it is made (in particular, it is established that not more than one gap exists).
Citation:
V. A. Geiler, V. V. Demidov, “Spectrum of three-dimensional landau operator perturbed by a periodic point potential”, TMF, 103:2 (1995), 283–294; Theoret. and Math. Phys., 103:2 (1995), 561–569
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E. N. Grishanov, I. Y. Popov, “Spectral Properties of Graphene with Periodic Array of Defects in a Magnetic Field”, Russ. J. Math. Phys., 25:3 (2018), 277
E.N. Grishanov, I.Y. Popov, “Electron spectrum for aligned SWNT array in a magnetic field”, Superlattices and Microstructures, 100 (2016), 1276
E.N. Grishanov, I.Yu. Popov, “Spectral properties of multi-layered graphene in a magnetic field”, Superlattices and Microstructures, 86 (2015), 68
E. N. Grishanov, V. V. Demidov, L. A. Chernozatonskii, “Issledovanie spektralnykh svoistv sverkhreshetok nanotrubok v magnitnom pole”, Trudy chetvertoi Vserossiiskoi nauchnoi konferentsii s mezhdunarodnym uchastiem (29–31 maya 2007 g.). Chast 3, Differentsialnye uravneniya i kraevye zadachi, Matem. modelirovanie i kraev. zadachi, SamGTU, Samara, 2007, 75–78
J. Brüning, V. V. Demidov, V. A. Geyler, “Hofstadter-type spectral diagrams for the Bloch electron in three dimensions”, Phys. Rev. B, 69:3 (2004)
J. BRÜNING, V. V. DEMIDOV, V. A. GEYLER, “FERMI SURFACES OF CRYSTALS IN A HIGH MAGNETIC FIELD”, Int. J. Nanosci., 02:06 (2003), 603
S. Albeverio, V.A. Geyler, O.G. Kostrov, “Quasi-one-dimensional nanosystems in a uniform magnetic field: Explicitly solvable model”, Reports on Mathematical Physics, 44:1-2 (1999), 13
V. A. Geyler, K. V. Pankrashkin, Mathematical Results in Quantum Mechanics, 1999, 259