arXiv subjects

K H Mütter

Publications and source records attributed to K H Mütter.

2 recordsLinked to original sources

arXiv1997

The two dimensional antiferromagnetic Heisenberg model in the presence of an external field

We present numerical results on the zero temperature magnetization curve and the static structure factors of the two dimensional antiferromagnetic Heisenberg model in the presence of an external field. The impact of frustration is also studied.

cond-mat↗

arXiv1996

Significance of the non-2-spinon part of $S(q,ω)$ in the one-dimensional $S=1/2$ Heisenberg antiferromagnet at zero temperature

The impact of the non-2-spinon excitations of the one-dimensional $S=1/2$ Heisenberg antiferromagnet on the integrated intensity, the susceptibility, the frequency moments, and the Euclidian time representation of the $T=0$ dynamic spin structure factor $S(q,ω)$ is studied on the basis of finite-size data for chains with up to $N=28$ sites.

cond-mat↗