Skip to main content Accessibility help
×
Home
Hostname: page-component-568f69f84b-r4dm2 Total loading time: 0.75 Render date: 2021-09-16T21:36:38.546Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Effect of partial substitution of Cr or Mn for Ga or Fe on crystal-structure and microstructures of GaFeO3

Published online by Cambridge University Press:  01 March 2012

Z. K. Heiba
Affiliation:
Department of Physics, Faculty of Science, Ain-Shams University, Abbassia, Cairo 1156, Egypt
Ali Abo-Shama
Affiliation:
Department of Physics, Faculty of Science, Ain-Shams University, Abbassia, Cairo 1156, Egypt
M. Bakr
Affiliation:
Department of Physics, Faculty of Science, Ain-Shams University, Abbassia, Cairo 1156, Egypt
Karimat El-Sayed
Affiliation:
Department of Physics, Faculty of Science, Ain-Shams University, Abbassia, Cairo 1156, Egypt

Abstract

Gallium iron oxide GaFeO3 and the substituted GaFeO3 with Cr and Mn, i.e., Ga(Fe0.95Me0.05)O3, and (Ga0.95Me0.05)FeO3; Me=Cr and Mn, have been synthesized and investigated by X-ray powder diffraction. The refined structural parameters of the considered samples using the Rietveld technique showed a considerable distortion in the polyhedron around different cations, which may have an effect on the piezoelectricity of the studied samples. There are also changes in the interatomic distances between different cations, which may have a direct influence on the ferromagnetic properties of the samples. Crystallite size and microstrain are anisotropic and the largest along the b axis, which may be responsible for the piezoelectricity. The correlations between all these changeable parameters will be discussed.

Type
Technical Articles
Copyright
Copyright © Cambridge University Press 2007

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

Abrahams, S. C. and Reddy, J. M. (1964). “Magnetic, electric, and crystallographic properties of gallium iron oxide, ” Phys. Rev. Lett.PRLTAO10.1103/PhysRevLett.13.688 13, 688690.CrossRefGoogle Scholar
Abrahams, S. C., Reddy, J. M., and Bernstein, J. L. (1965). “Crystal structure of piezoelectric ferromagnetic gallium iron oxide, ” J. Chem. Phys.JCPSA610.1063/1.1695868 42, 39573968.CrossRefGoogle Scholar
Kubota, M., Arima, T., Kaneko, Y., He, J. P., Yu, X. Z., and Tokura, Y. (2004). “X-ray directional dichroism of a polar ferromagnet, ” Phys. Rev. Lett.PRLTAO10.1103/PhysRevLett.92.137401 92, 137401.CrossRefGoogle Scholar
Lutterotti, L. and Scardi, P. (1990). “Simultaneous structure and size-strain refinement by the Rietveld method, ” J. Appl. Crystallogr.JACGAR10.1107/S0021889890002382 23, 246252.CrossRefGoogle Scholar
Rado, G. T. (1964). “Observation and possible mechanism of magnetoelectric effects in a ferromagnet, ” Phys. Rev. Lett.PRLTAO10.1103/PhysRevLett.13.335 13, 335337.CrossRefGoogle Scholar
Remeika, J. P. (1960). “GaFeO3: a ferromagnetic-piezoelectric compound, ” J. Appl. Phys.JAPIAU 31, S263S264.CrossRefGoogle Scholar
Rietveld, H. M. (1969). “A profile refinement method for nuclear and magnetic structures, ” J. Appl. Crystallogr.JACGAR10.1107/S0021889869006558 2, 6571.CrossRefGoogle Scholar
Wood, E. A. (1960). “The unit cell and space group of gallium iron oxide, a piezoelectric ferromagnetic crystal, ” Acta Crystallogr.ACCRA910.1107/S0365110X6000162X 13, 682.CrossRefGoogle Scholar
3
Cited by

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Effect of partial substitution of Cr or Mn for Ga or Fe on crystal-structure and microstructures of GaFeO3
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Effect of partial substitution of Cr or Mn for Ga or Fe on crystal-structure and microstructures of GaFeO3
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Effect of partial substitution of Cr or Mn for Ga or Fe on crystal-structure and microstructures of GaFeO3
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *