Skip to main content
SHARE
Publication

Nanoscale structure in AgSbTe2 determined by diffuse elastic neutron scattering...

Publication Type
Conference Paper
Journal Name
Journal of Electronic Materials
Publication Date
Page Numbers
1536 to 1539
Volume
44
Issue
6
Conference Name
International Conference on Thermoelectrics - ICT2014
Conference Location
Nashville, Tennessee, United States of America
Conference Date
-

Diffuse elastic neutron scattering measurements confirm that AgSbTe2 has a hierarchical structure, with defects on length scales from nanometers to microns. While scattering from mesoscale structure is consistent with previously-proposed structures in which Ag and Sb order on a NaCl lattice, more diffuse scattering from nanoscale structure suggests a structural rearrangement in which hexagonal layers form a combination of (ABC), (ABA), and (AAB) stacking sequences. The AgCrSe2 structure is the best-fitting model for the local atomic arrangements.