Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Magnetic phase diagram of Co(Cr1-xAlx)2O-4 (x=0.0-1.0)
Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, India;Rajiv Gandhi Univ Knowledge Technol IIIT Basar, Dept Phys, Nirmal 504107, Telangana, India.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.ORCID iD: 0000-0003-4754-2504
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.ORCID iD: 0000-0002-5261-2047
Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, India.
Show others and affiliations
2017 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 122, no 7, article id 073908Article in journal (Refereed) Published
Abstract [en]

We report the role of Al substitution in the magnetic properties of spinel CoCr2O4 by means of temperature dependent dc and ac magnetization and heat capacity measurements. Various compositions (0.0 <= x <= 1.0) of polycrystalline Co(Cr1-xAlx)(2)O-4 samples have been prepared by sol-gel processing and their crystal structure was investigated by X-ray diffraction which was found to crystallize in the normal cubic spinel structure. For x <= 0.1, the system exhibits multiple magnetic orderings (long range ferrimagnetic ordering T-C, spin-spiral ordering T-S, and lock-in transition T-L), similar to that of the parent compound, CoCr2O4. However, all the compositions between x = 0.1 and 0.5 exhibit long range ferrimagnetic ordering below T-C and also a short range order at low temperature. Spin-glass like ordering was noticed between x = 0.6 and 0.8 due to the diluted B-site occupancy, whereas the end compound CoAl2O4 (x = 1.0) shows antiferromagnetic behavior. On the basis of these results, we propose a magnetic phase diagram for the Co(Cr1-xAlx)(2)O-4 series as a function of the Al content (x) and measuring temperature (T).

Place, publisher, year, edition, pages
2017. Vol. 122, no 7, article id 073908
National Category
Condensed Matter Physics Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-361240DOI: 10.1063/1.4999030ISI: 000408060900012OAI: oai:DiVA.org:uu-361240DiVA, id: diva2:1251198
Funder
Swedish Research CouncilAvailable from: 2018-09-26 Created: 2018-09-26 Last updated: 2019-01-21Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Search in DiVA

By author/editor
Sarkar, TapatiMathieu, Roland
By organisation
Solid State Physics
In the same journal
Journal of Applied Physics
Condensed Matter PhysicsEngineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf