Magnetic and lattice excitations in the quasi-2D quantum spin compound (CuCl)LaNb2O7

verfasst von
Vladimir Gnezdilov, Peter Lemmens, Dirk Wulferding, Atsushi Kitada, Hiroshi Kageyama
Abstract

Raman scattering phonon data of the quasi-two-dimensional quantum spin system (CuCl)LaNb2O7 are used to derive an effective structural model that may serve as a basis for its unconventional magnetic properties. Furthermore, a rich spectrum of magnetic excitations is observed, including quasielastic energy density fluctuations and finite energy bound states. These modes are the key to understand (CuCl)LaNb2O7 as a system with strong interactions between well-localized triplet excitations based on a pronounced competition of magnetic exchange.

Externe Organisation(en)
Technische Universität Braunschweig
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
Seoul National University
Kyoto University
Typ
Artikel
Journal
Low temperature physics
Band
47
Seiten
928-936
Anzahl der Seiten
9
ISSN
1063-777X
Publikationsdatum
30.11.2021
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (sonstige)
Elektronische Version(en)
https://doi.org/10.1063/10.0006564 (Zugang: Geschlossen)