Absence of structural correlations of magnetic defects in the heavy-fermion compound LiV2O4

TitleAbsence of structural correlations of magnetic defects in the heavy-fermion compound LiV2O4
Publication TypeJournal Article
Year of Publication2009
AuthorsDas S, Kreyssig A, Nandi S, Goldman AI, Johnston DC
Journal TitlePhysical Review B
Volume80
Pages104401
Date Published09/01
ISBN Number1098-0121
Accession NumberISI:000270383100044
Keywordstransition-metal oxide
Abstract

Magnetic defects arising from structural imperfections have pronounced effects on the magnetic properties of the face-centered cubic normal-spinel structure compound LiV2O4. High-energy x-ray diffraction studies were performed on LiV2O4 single crystals to search for superstructure peaks or other evidence of spatial correlations in the arrangement of the crystal defects present in the lattice. Entire reciprocal lattice planes were mapped out with the help of synchrotron radiation. No noticeable differences in the x-ray diffraction data between a crystal with high magnetic defect concentration and a crystal with low magnetic defect concentration were found. This indicates the absence of any long-range periodicity or short-range correlations in the arrangements of the crystal/magnetic defects.

URL<Go to ISI>://000270383100044
DOI10.1103/Physrevb.80.104401