Non-magnetic impurity doping effect on the magnetic state of p-type Al-doped delafossite oxide CuCrO2

• Authors: Fatma Jlaiel , Mongi Amami , Piere Strobel , Abdelhamid Salah
• Languages of publication: EN

Abstracts

EN

We investigated the substitution effects of Al3+ for Cr3+ on the structure and magnetic, properties of delafossite oxide CuCrO2, which possesses a quasi-2D Heisenberg triangular antiferromagnetic (AFM) lattice. The lattice parameters was found to vary according to the Vegard’s rule. We also found that the large local lattice distortion, caused by the nonmagnetic dopant with different radii between magnetic and nonmagnetic ions, affects the samples significantly. Magnetization and specific heat measurements indicated that AFM ordering is diluted by the substitution of nonmagnetic Al3+ for Cr3+ (S = 3/2). [...]

Keywords

EN

Delafossite; Microstrain; Magnetism; Specific heat

• Journal: Open Chemistry
• Year: 2011
• Volume: 9
• Issue: 5
• Pages: 953-958

Dates

published

1 - 10 - 2011

online

24 - 7 - 2011

Contributors

author

Fatma Jlaiel

• Laboratory of Materials Science and Environment, University of Sfax, 3038, Sfax, Tunisia

author

Mongi Amami,

author

Piere Strobel

• Joseph Fourier Néel Institute — CNRS, 38042, Grenoble Cedex 9, France

author

Abdelhamid Salah

• Laboratory of Materials Science and Environment, University of Sfax, 3038, Sfax, Tunisia

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Identifiers

DOI

10.2478/s11532-011-0073-z