Dimensionality crossover and frustrated spin dynamics on a triangular lattice
2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 81, no 22, 224411- p.Article in journal (Refereed) Published
Investigations of the magnetic behavior of the layered oxide, LiNi0.65Co0.25Mn0.10O2, through ac and time-dependent susceptibility, dc linear and nonlinear susceptibility as well as neutron-diffraction measurements are presented. A ferrimagneticlike spin ordering appears at 119 K with a spontaneous magnetization coexisting with spin frustration in two dimensions (2D). At lower temperature, a cluster-glass transition is found at 17.4 K indicating a transformation to a completely frustrated state in three dimensions (3D). A dimensionality crossover with temperature, from 2D to 3D, in a magnetically frustrated system has been demonstrated. The observed magnetic behavior is believed to originate from a percolating system of spin clusters defined by disordered and frustrated exchange interactions and the findings conform well with predictions of the percolation cluster model.
Place, publisher, year, edition, pages
2010. Vol. 81, no 22, 224411- p.
Physical Sciences Inorganic Chemistry Engineering and Technology
Research subject Chemistry with specialization in Inorganic Chemistry; Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-133311DOI: 10.1103/PhysRevB.81.224411ISI: 000278482500002OAI: oai:DiVA.org:uu-133311DiVA: diva2:361002