27 citations · 42 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2004★ 5 cited
Spin wave analysis of Heisenberg magnets in restricted geometries
N. B. Ivanov, D. Sen
In the last decade it has been proven that the standard spin wave theory was able to provide accurate zero-temperature results for a number of low-dimensional Heisenberg spin syste…
cond-mat.stat-mech1997★ 10 cited
Marshall-Peierls sign rule for excited states of the frustrated J1-J2 Heisenberg antiferromagnet
A. Voigt, J. Richter, N. B. Ivanov
We present analytical and numerical calculations for some exited states of the frustrated J1-J2 spin-1/2 Heisenberg model for linear chains and square lattices. We consider the low…
cond-mat1995★ 27 cited
Square-lattice Heisenberg antiferromagnet with two kinds of nearest-neighbor regular bonds
N. B. Ivanov, S. E. Krüger, J. Richter
We study the zero-temperature phase diagram of a square-lattice Heisenberg antiferromagnet with two types of regularly distributed nearest-neighbor exchange constants, $J_1…