Noncollinear magnetic state in a frustrated Heisenberg antiferromagnet
Barsov S. G., Getalov A. L., Koptev V. P., Kuz'min L. A., Mikirtych'yants S. M.,Takzei G. A. , Shcherbakov G. V.
A noncollinear antiferromagnetic state (or antiasperomagnetic state) has been detected in a Heisenberg antiferromagnet, FeNiCr, by the method of μ + spin relaxation for the first time. As the temperature is lowered, the following sequence of magnetic transitions occurs in the alloy: paramagnet->collinear antiferromagnet -> antiasperomagnet -»spin glass.