37 citations · 38 across the 2 of their papers we have counts for
3 papers
cond-mat.str-el2007★ 1 cited
Anomalous Curie response of impurities in quantum-critical spin-1/2 Heisenberg antiferromagnets
K. H. Hoglund, A. W. Sandvik
We consider a magnetic impurity in two different S=1/2 Heisenberg bilayer antiferromagnets at their respective critical inter-layer couplings separating N'eel and disordered ground…
cond-mat.str-el2006★ 37 cited
Impurity induced spin texture in quantum critical 2D antiferromagnets
Kaj H. Hoglund, Anders W. Sandvik, Subir Sachdev
We describe the uniform and staggered magnetization distributions around a vacancy in a quantum critical two-dimensional S=1/2 antiferromagnet. The distributions are delocalized ac…
cond-mat.str-el2003
Susceptibility of the 2D S=1/2 Heisenberg antiferromagnet with an impurity
Kaj H. Hoglund, Anders W. Sandvik
We use a quantum Monte Carlo method (stochastic series expansion) to study the effects of a magnetic or nonmagnetic impurity on the magnetic susceptibility of the two-dimensional H…