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Powder X-Ray Reference Patterns of Sr2RGaCu2Oy(R=Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, and Y)



Winnie K. Wong-Ng, James A. Kaduk, Igor Levin, W Greenwood, J Dillingham


X-ray Rietveld refinements were conducted on a series of 11 lanthanide phases, SR2RGaCu2O7 (R=Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, and Y) that are structurally related to the High Tc superconductor Ba2YCu3O7. Reference patterns for these compounds were prepared by using the Rietveld decomposition technique. The unit cell volumes of these compounds in general show the expected trend parallel to that of lanthanide contraction. These lattice parameters range from a = 22.8059(2) , b = 5.46031(5) and c = 5.37773(5) for R = Yb, to 23.129(1) , b = 5.587(2) and c = 5.4596(3) for R = La.
Journal of Research (NIST JRES) -
106 No. 4


Rietveld refinements, Sr<sub>2</sub>RGaCu<sub>2</sub>O<sub>7</sub>, superconductor related phases, x-ray powder patterns


Wong-Ng, W. , A., J. , Levin, I. , Greenwood, W. and Dillingham, J. (2001), Powder X-Ray Reference Patterns of Sr<sub>2</sub>RGaCu<sub>2</sub>O<sub>y</sub>(R=Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, and Y), Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 21, 2024)
Created August 1, 2001, Updated February 19, 2017