Abstract
It will be discussed to what extent the large S approach to an antiferromagnet on a kagome lattice can explain the data of magnetothermal and neutron scattering experiments on a stacked kagome antiferromagnet Sr-Cr-Ga-O. In particular, it will be shown that quantum fluctuations lift the classical degeneracy related to a large amount of frustration in a kagome lattice and give rise to a finite velocity of spin-wave excitations which is by a factor S -1/3 smaller than for a conventional antiferromagnet.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 5639-5641 |
| Number of pages | 3 |
| Journal | Journal of Applied Physics |
| Volume | 73 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1993 |