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New diffraction data and crystal structure of HoCo0.67Ga1.33

Published online by Cambridge University Press:  29 February 2012

Jialin Yan
Affiliation:
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi University, Nanning 530004, China and College of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, China
Liuqing Liang
Affiliation:
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi University, Nanning 530004, China and College of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, China
Xingwen Lu
Affiliation:
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi University, Nanning 530004, China and College of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, China
Lingmin Zeng*
Affiliation:
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi University, Nanning 530004, China and College of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, China
Liangqin Nong
Affiliation:
College of Physics and Electronic Engineering, Guangxi University for Nationalities, Nanning, Guangxi 530006, China
*
a)Author to whom correspondence should be addressed. Electronic mail: lmzeng@gxu.edu.cn

Abstract

Compound HoCo0.67Ga1.33 was synthesized and studied by means of X-ray powder diffraction technique. HoCo0.67Ga1.33 was found to have the orthorhombic CeCu2 structure (space group Imma) with a=4.3479(2) Å, b=7.0351(3) Å, c=7.4876(3) Å, Z=4, and Dcalc=8.62 g/cm3. The crystal structure of HoCo0.67Ga1.33 was also refined by the Rietveld method. Ho atoms were found to occupy the 4e positions and mixed Co/Ga atoms to share the 8h positions of the space group Imma (No. 74).

Type
New Diffraction Data
Copyright
Copyright © Cambridge University Press 2009

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References

Gladyshevskii, R. E., Cenzual, K., and Parth, E. (1992). “Er2RhSi3 and R2COGa3 (R=Y,Tb,Dy,Ho,Er,Tm,Yb) with Lu2COGa3 type structure: New members of the A1B2 structure family,” J. Alloys Compd. JALCEU 189, 221228. 10.1016/0925-8388(92)90711-HCrossRefGoogle Scholar
Gladyshevskii, R. E., Grin', Y. N., and Yarmolyuk, Y. P. (1985). Stable and Metastable Phase Equilibria in Metallic Systems (Nauka, Moscow), pp. 4954.Google Scholar
Larson, A. C. and Cromer, D. T. (1961). “The crystal structure of CeCu2,” Acta Crystallogr. ABCRE6 14, 7374. 10.1107/S0365110X61000231Google Scholar
Marciniak, H. and Diduszko, R. (1997). DMPLOT: Plot View Program for Rietveld Refinement Method, Version 3.38 (Computer Software) (High Pressure Research Center, Warsaw, Poland).Google Scholar
Sichevich, O. M., Grin', Y. N., and Yarmolyuk, Y. P. (1989). “Isothermal sections of the Sm-Co-Ga phase diagram,” Izv. Akad. Nauk. SSSR, Met. IZNMAQ 2, 201203.Google Scholar
Smith, G. S. and Snyder, R. L. (1979). “FN: A criterion for rating powder diffraction patterns and evaluating the reliability of powder-pattern indexing,” J. Appl. Crystallogr. JACGAR 12, 6065. 10.1107/S002188987901178XCrossRefGoogle Scholar
Young, R. A., Larson, A. C., and Paiva-Santos, C. O. (2000). User’s Guide to Program DBWS-9807a for Rietveld Analysis of X-ray and Neutron Powder Diffraction Patterns with a PC and Various Other Computers (School of Physics, Georgia Institute of Technology, Atlanta, GA).Google Scholar
Yvon, K., Jeitschko, W., and Parthe, E. (1977). “LAZY PULVERIX, a computer program for calculating X-ray and neutron diffraction powder patterns,” J. Appl. Crystallogr. JACGAR 10, 7374. 10.1107/S0021889877012898CrossRefGoogle Scholar