Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-30T16:16:12.609Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystal structure of Cu doped La0.67Ca0.33MnO3 by Rietveld refinement

Published online by Cambridge University Press:  05 March 2012

H. L. Cai ,
X. S. Wu ,
F. Z. Wang ,
A. Hu ,
S. S. Jiang ,
J. F. Feng ,
B. Qian ,
J. H. Xing ,
C. J. Chen  and
X. Chen
...Show all authors
H. L. Cai
Affiliation:
Lab of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
X. S. Wu*
Affiliation:
Lab of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
F. Z. Wang
Affiliation:
Lab of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
A. Hu
Affiliation:
Lab of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
S. S. Jiang
Affiliation:
Lab of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
J. F. Feng
Affiliation:
Department of Physics, Changshu College, Changshu 215500, China
B. Qian
Affiliation:
Department of Physics, Changshu College, Changshu 215500, China
J. H. Xing
Affiliation:
Department of Physics, Changshu College, Changshu 215500, China
C. J. Chen
Affiliation:
BSRL, Institute of High Energy Physics, Beijingy 100039, China
X. Chen
Affiliation:
BSRL, Institute of High Energy Physics, Beijingy 100039, China
M. H. Sun
Affiliation:
BSRL, Institute of High Energy Physics, Beijingy 100039, China
Z. H. Wu
Affiliation:
BSRL, Institute of High Energy Physics, Beijingy 100039, China
*
a)Author to whom correspondence should be addressed; electronic mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The crystal structure of La0.67Ca0.33Mn0.80Cu0.20O3 (LCMCO) compound was determined from laboratory X-ray powder diffraction data and refined by the Rietveld method. LCMCO is isostructural with La0.67Ca0.33MnO3 (LCMO). The crystal data are: La0.64Ca0.36Mn0.82Cu0.18O3.01, Mr=843.80, orthorhombic system, space group Pnma, a=5.4364(1) Å, b=7.6725(2) Å, c=5.4452(1) Å, V=227.124(8)Å3, Z=4, Dx=6.168 g∕cm3. In comparing with the Cu-free compound, subtle structural changes such as bond lengths and bond angles found in the Cu-doped compound may be responsible for the larger effects on the transport and magnetic properties when Cu partially substitutes for Mn in CMCO.

Keywords

X-ray diffractioncopper dopingLa0.67Ca0.33MnO3
Type
Selected Papers from 2003 Chinese National Symposium on XRD
Information
Powder Diffraction , Volume 19 , Issue 4 , December 2004 , pp. 329 - 332
Copyright
Copyright © Cambridge University Press 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ghosh, K., Ogale, S. B., Ramesh, R., Greene, R. L., and Venkatesan, T. (1999). “Transition-element doping effects in La0.7Ca0.3MnO3,” Phys. Rev. B PRBMDO 59, 533–537.Google Scholar
Radaelli, P. G., Iannone, G., Marezio, M., Hwang, H. Y., Cheong, S. W., Jorgensen, J. D., and Argyriou, D. N. (1997). “Structural effects on the magnetic and transport properties of perovskite A(1−x)A′(x)MnO3(x=0.25, 0.30),” Phys. Rev. B PRBMDO 56, 8265–8276.CrossRefGoogle Scholar
Salamon, M. B. and Jaime, M. (2001). “The physics of manganites: Structure and transport,” Rev. Mod. Phys. RMPHAT 73, 583–628.CrossRefGoogle Scholar
Verges, J. A., Martin, M V., and Brey, L. (2002). “Lattice-spin mechanism in colossal magnetoresistive manganites,” Phys. Rev. Lett. PRLTAO 10.1103/PhysRevLett.88.136401 88, 136401-1-4.CrossRefGoogle ScholarPubMed
Wu, X. S., Sha, H., Tan, W. S., Yu, T., Hu, A., Jiang, S. S., Wang, J., and Ding, Y. F. (2002). “The crystal structure of La0.7Pr0.3Ba2Cu3Od ceramic compound,” Powder Diffr. PODIE2 17, 25–29.Google Scholar
Yuan, S. L., Jiang, Y, Li, G., Li, J. Q., Yang, Y. P., Zeng, X. Y., Tang, P., and Huang, Z. (2000). “Semiconductor-metal transition and magnetoresistance in La(1+x)∕3Ba(2−x)∕3Cu1−xMnxO3,” Phys. Rev. B PRBMDO 61, 3211–3214.CrossRefGoogle Scholar
Yuan, S. L., Li, Z. Y., Zeng, X. Y., Zhang, G. Q., Tu, F., Peng, G., Liu, J., Jiang, Y., Yang, Y. P., and Tang, C. Q. (2001). “Effect of Cu doping at the Mn site on the transport and magnetic behaviors of La2∕3Ca1∕3MnO3,” Eur. Phys. J. B EPJBFY 20, 177–181.Google Scholar
Young, R. A., Sakthivel, A., Moss, T. S., and Paiva-Santos, C. O. (1995). “DBWS-9411, an upgrade of the DBWS.”Google Scholar