Abstract
It is known that the one-dimensional S=1 antiferromagnet has an energy gap and therefore has no magnetization up to a finite field Hc. We find that the magnetization appears nonlinearly above Hc. So the field derivative dm/dH diverges at Hc. This explains the cusp in dm/dH observed experimentally in the quasi-one-dimensional S=1 material Ni(C2H8N2)2NO2ClO4.
| Original language | English |
|---|---|
| Pages (from-to) | 5092-5094 |
| Number of pages | 3 |
| Journal | Physical Review B |
| Volume | 44 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1991 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics