Abstract
We consider an ordered ferromagnet in the vicinity of a T=0 transition into a paramagnet. We show that the free energy and the transverse and longitudinal static susceptibilities contain nonanalyticities which destroy a continuous second-order transition. Depending on the parameters, the transition either becomes first order or occurs via an intermediate spiral phase.
| Original language | English (US) |
|---|---|
| Article number | 220401 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 77 |
| Issue number | 22 |
| DOIs | |
| State | Published - Jun 9 2008 |
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