Defect-induced spin-glass magnetism in incommensurate spin-gap magnets
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
We study magnetic order induced by non-magnetic impurities in quantum paramagnets with incommensurate host spin correlations. In contrast to the well-studied commensurate case where the defect-induced magnetism is spatially disordered but non-frustrated, the present problem combines strong disorder with frustration and, consequently, leads to spin-glass order. We discuss the crossover from strong randomness in the dilute limit to more conventional glass behavior at larger doping, and numerically characterize the robust short-range order inherent to the spin-glass phase. We relate our findings to magnetic order in both BiCu 2PO 6 and YBa 2Cu 3O 6.6 induced by Zn substitution.
Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 37007 |
Fachzeitschrift | EPL |
Jahrgang | 97 |
Ausgabenummer | 3 |
Publikationsstatus | Veröffentlicht - Feb. 2012 |
Peer-Review-Status | Ja |