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Title: Synchrotron X-ray diffraction study of double perovskites Sr2RNbO6 ( R = Sm, Gd, Dy, Ho, Y, Tm, and Lu)

Journal Article · · Powder Diffraction
 [1]; ORCiD logo [2];  [3];  [3];  [1]
  1. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  2. Illinois Inst. of Technology, Chicago, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)

A series of double-perovskite oxides, Sr2RNbO6(R= Sm, Gd, Dy, Ho, Y, Tm, and Lu) were prepared and their crystal structure and powder diffraction reference patterns were determined using the Rietveld analysis technique. The crystal structure of each of the Sr2RNbO6phase is reported in this paper. TheR= Gd, Ho, and Lu samples were studied using synchrotron radiation, whileR= Sm, Dy, Y, and Tm samples were studied using laboratory X-ray diffraction. Members of Sr2RNbO6are monoclinic with a space group ofP21/nand are isostructural with each other. Following the trend of “lanthanide contraction”, fromR= Sm to Lu, the lattice parameters “a” of these compounds decreases from 5.84672(10) to 5.78100(3) Å,bfrom 5.93192(13) to 5.80977(3) Å,cfrom 8.3142(2) to 8.18957(5) Å, andVdecreases from 288.355(11) to 275.057(2) Å3. In this double-perovskite series, theR3+and Nb5+ions are structurally ordered. The average Nb–O bond length is nearly constant, while the averageR–O bond length decreases with the decreasing ionic radius ofR3+. Powder diffraction patterns for these compounds have been submitted to the Powder Diffraction File (PDF).

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1503241
Journal Information:
Powder Diffraction, Vol. 33, Issue 4; ISSN 0885-7156
Publisher:
Cambridge University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

References (28)

A twelve-analyzer detector system for high-resolution powder diffraction journal July 2008
Synthesis and thermoelectric properties of the new oxide ceramics Ca3−xSrxCo4O9+δ (x=0.0–1.0) journal January 2001
Texture and phase analysis of a Ca3Co4O9∕Si (100) thermoelectric film journal August 2007
Ba 2 LnSbO 6 and Sr 2 LnSbO 6 (Ln = Dy, Ho, Gd) double perovskites: Lanthanides in the geometrically frustrating fcc lattice journal June 2003
Phase relationships in the La2O3-SrO-Nb2O5 system journal July 1991
Structure/property relationships of the thermoelectric oxyselenides (Bi 1-x A x CuOSe) (A=Ba and Ca) journal October 2017
X-ray powder diffraction reference patterns for Bi 1− x Pb x OCuSe journal July 2016
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Influence of ionic size of rare-earth site on the thermoelectric properties of RCoO3-type perovskite cobalt oxides journal August 2001
Semiempirical model for the electrical properties of La 1 x Ca x CoO 3 journal October 1995
Large thermoelectric power in NaCo 2 O 4 single crystals journal November 1997
Misfit-layered cobaltite with an anisotropic giant magnetoresistance: Ca 3 Co 4 O 9 journal July 2000
Rapid synthesis and characterization of (Ca1−xBax)3Co4O9 thin films using combinatorial methods journal September 2002
The role of the Eu3+/Eu2+ redox-pair in the electrical properties of Sr2EuNb1−xTixO6−δ oxides journal January 2012
Thermoelectrics book January 2001
JCPDS-ICDD Research Associateship (cooperative program with NBS/NIST) journal November 2001
Crystal Structures and Magnetic Properties of Ordered Perovskites Ba2LnNbO6 (Ln=Lanthanide Elements) journal December 1999
Bond-valence parameters for solids journal April 1991
Contribution of powder diffraction for structure refinements of aperiodic misfit cobalt oxides journal September 2004
Structural and thermoelectric properties of Bi2Sr2Co2Oy thin films on LaAlO3 (100) and fused silica substrates journal January 2009
A profile refinement method for nuclear and magnetic structures journal June 1969
Correlation between the Structural Distortions and Thermoelectric Characteristics in La 1− x A x CoO 3 (A = Ca and Sr) journal April 2010
Phase compatibility and thermoelectric properties of compounds in the Sr–Ca–Co–O system journal February 2010
A dedicated powder diffraction beamline at the Advanced Photon Source: Commissioning and early operational results journal August 2008
Bond-valence parameters obtained from a systematic analysis of the Inorganic Crystal Structure Database journal August 1985
A high-throughput thermoelectric power-factor screening tool for rapid construction of thermoelectric property diagrams journal September 2007
High-temperature thermoelectric characterization of filled strontium barium niobates: power factors and carrier concentrations journal February 2017
The experimental physics and industrial control system architecture: past, present, and future
  • Dalesio, Leo R.; Hill, Jeffrey O.; Kraimer, Martin
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 352, Issue 1-2 https://doi.org/10.1016/0168-9002(94)91493-1
journal December 1994

Figures / Tables (11)