Neutron scattering study of Ag, Mg and Al substitution effects on the magnetic excitations in CuCrO2

Neutron scattering study of Ag, Mg and Al substitution effects on the magnetic excitations in CuCrO2

CuCrO2 is a quasi two-dimensional triangular-lattice antiferromagnet with S = 3/2. Recently, it was found that small amount of element substitution strongly affects magnetic and transport properties. In the present study, we studied magnetic excitations in powder samples of CuCrO2,Cu0.85Ag0.15CrO2,C...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of physics. Conference series 2012-12, Vol.400 (3)
Hauptverfasser: Kajimoto, R, Nakajima, K, Ohira-Kawamura, S, Inamura, Y, Kakurai, K, Arai, M, Hokazono, T, Oozono, S, Okuda, T
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Antiferromagnetism
Excitation
Inelastic scattering
Magnesium
Magnetic properties
Magnetism
Neutron scattering
Neutrons
Physics
Substitutes
Transport properties
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:CuCrO2 is a quasi two-dimensional triangular-lattice antiferromagnet with S = 3/2. Recently, it was found that small amount of element substitution strongly affects magnetic and transport properties. In the present study, we studied magnetic excitations in powder samples of CuCrO2,Cu0.85Ag0.15CrO2,CuCr0.97Mg0.03CrO2 and CuCr0.85Al0.15O2 by inelastic neutron scattering using the chopper spectrometer AMATERAS at J-PARC. We observed a variety of the magnetic excitations induced by different types of the element substitutions, and they should be keys to understand the magnetic and transport properties.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/400/3/032034