Abstract
We introduce an unfamiliar Kondo ladder problem by coupling the well-known Takhtajan-Babujan S=1chain to a half-filled one-dimensional electron gas, and we solve it using quantum field theory techniques. Based on the so-called underscreened Kondo effect, we find an insulating spin liquid with both deconfined spinons and optical magnons. Important consequences are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 848-851 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 83 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jan 1999 |
| Externally published | Yes |