INVESTIGADORES
ARLEGO Marcelo Jose Fabian
artículos
Título:
Quasiperiodic spin chains in a magnetic field
Autor/es:
ARLEGO MARCELO, CABRA DANIEL, GRYNBERG MARCELO
Revista:
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS
Referencias:
Año: 2001 p. 134419 - 134423
ISSN:
0163-1829
Resumen:
We study the interplay between a (quasi) periodic coupling array and an external magnetic field in a spin-1/2 chain. A new class of magnetization plateaux are obtained by means of Abelian bosonization methods which give rise to a sufficient quantization condition. The investigation of magnetic phase diagrams via exact diagonalization of finite clusters finds a complete agreement with the continuum treatment in a variety of situations.
