Journal article
In-Gap Spin Excitations and Finite Triplet Lifetimes in the Dilute Singlet Ground State System SrCu2-xMgx(BO3)2
Abstract
High resolution neutron scattering measurements on a single crystal of SrCu(2-x)Mgx(BO3)2 with x approximately 0.05 reveal the presence of new spin excitations within the gap of this quasi-two-dimensional, singlet ground state system. The application of a magnetic field induces Zeeman-split states associated with S=1/2 unpaired spins which are antiferromagnetically correlated with the bulk singlet. Substantial broadening of both the one- and …
Authors
Haravifard S; Dunsiger SR; Shawish SE; Gaulin BD; Dabkowska HA; Telling MTF; Perring TG; Bonča J
Journal
Physical Review Letters, Vol. 97, No. 24,
Publisher
American Physical Society (APS)
Publication Date
December 15, 2006
DOI
10.1103/physrevlett.97.247206
ISSN
0031-9007