Nanoscale Structure in AgSbTe2 Determined by Diffuse Elastic Neutron Scattering

E. D. Specht; J. Ma; O. Delaire; J. D. Budai; A. F. May; E. A. Karapetrova

doi:10.1007/s11664-014-3447-0

Nanoscale Structure in AgSbTe₂ Determined by Diffuse Elastic Neutron Scattering

E. D. Specht
, J. Ma
, O. Delaire
, J. D. Budai
, A. F. May
, E. A. Karapetrova

Correlated Electron Materials

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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

Original language	English
Pages (from-to)	1536-1539
Number of pages	4
Journal	Journal of Electronic Materials
Volume	44
Issue number	6
DOIs	https://doi.org/10.1007/s11664-014-3447-0
State	Published - Jun 1 2015

Keywords

AgSbTe
nanostructure
neutron scattering
thermoelectric

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10.1007/s11664-014-3447-0

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title = "Nanoscale Structure in AgSbTe2 Determined by Diffuse Elastic Neutron Scattering",

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

keywords = "AgSbTe, nanostructure, neutron scattering, thermoelectric",

author = "Specht, \{E. D.\} and J. Ma and O. Delaire and Budai, \{J. D.\} and May, \{A. F.\} and Karapetrova, \{E. A.\}",

note = "Publisher Copyright: {\textcopyright} 2014, The Minerals, Metals \& Materials Society.",

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AU - Specht, E. D.

AU - Ma, J.

AU - Delaire, O.

AU - Budai, J. D.

AU - May, A. F.

AU - Karapetrova, E. A.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Diffuse elastic neutron scattering measurements have confirmed that AgSbTe2 has a hierarchical structure, with defects on length scales from nanometers to microns. While scattering from this mesoscale structure is consistent with previously proposed structures in which Ag and Sb order on a NaCl lattice, more diffuse scattering from nanoscale structures suggests a structural rearrangement in which hexagonal layers form a combination of (ABC), (ABA), and (AAB) polytypes. Consequently, the AgCrSe2 structure is the best-fitting model for the local atomic arrangements.

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

KW - AgSbTe

KW - nanostructure

KW - neutron scattering

KW - thermoelectric

UR - https://www.scopus.com/pages/publications/84939898448

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DO - 10.1007/s11664-014-3447-0

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VL - 44

SP - 1536

EP - 1539

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

IS - 6

ER -

Nanoscale Structure in AgSbTe₂ Determined by Diffuse Elastic Neutron Scattering

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