Spin-orbit coupling and symmetry of the order parameter in strontium ruthenate
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Annett James F., Litak Grzegorz, Györffy Balazs L., Wysokiński Karol Izydor |
| Rok wydania: | 2006 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 13 |
| Wolumen/Tom: | 73 |
| Numer artykułu: | 134501 |
| Strony: | 134501 - 134501 |
| Web of Science® Times Cited: | 40 |
| Scopus® Cytowania: | 41 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Determination of the orbital symmetry of the pairing state in the spin triplet Sr2RuO4 superconductor is a challenge of considerable importance. Most of the experiments show that the chiral state of the z(k(x)+/- ik(y)) type is realized and remains stable on lowering the temperature. Here we have studied the stability of various superconducting states of Sr2RuO4 in the presence of spin-orbit coupling. Numerically we found that the chiral state is never the minimum energy. Alone among the five states studied it has < L center dot S >=0 and is therefore not affected to linear order in the coupling parameter lambda. We found that the stability of the chiral state requires spin-dependent pairing interactions. This imposes strong constraints on the pairing mechanism. |
