3 papers
cond-mat.str-el2007★ 115 cited
Correlation functions and excitation spectrum of the frustrated ferromagnetic spin-1/2 chain in an external magnetic field
T. Vekua, A. Honecker, H. -J. Mikeska +1
Magnetic field effects on the one-dimensional frustrated ferromagnetic chain are studied by means of effective field theory approaches in combination with numerical calculations ut…
cond-mat.str-el2002
Dynamical Structure Factors for the Heisenberg Chain with Alternating Exchange
M. Mueller, H. -J. Mikeska
We discuss the transition strength between the disordered ground state and the basic low-lying triplet excitation for the Heisenberg chain with alternating exchange based on series…
cond-mat.str-el1997
One-dimensional Heisenberg antiferromagnet in which two S=1/2 and two S=1 spins are arranged alternatively
T. Tonegawa, T. Hikihara, T. Nishino +3
Ground-state and thermodynamic properties of the one-dimensional Heisenberg antiferromagnet in which two S=1/2 and two S=1 spins are arranged alternatively are studied by a quantum…