Pressure effect on the Neel temperature in La sub(2)CuO sub(4)

Pressure effect on the Neel temperature in La sub(2)CuO sub(4)

The effects of hydrostatic pressure up to 1.3 GPa on the Neel temperature in orthorhombic antiferromagnetic La sub(2)CuO sub(4+ delta ) have been investigated using the super(139)La NQR method. A positive sign of the pressure derivative, dT sub(N)/dP identical with 7.1 K/GPa, as well as an increase...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1996-01, Vol.157-158, p.669-670
Hauptverfasser: Doroshev, V, Krivoruchko, V, Savosta, M, Shestakov, A, Tarasenko, T
Format: Artikel
Sprache:eng
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Zusammenfassung:The effects of hydrostatic pressure up to 1.3 GPa on the Neel temperature in orthorhombic antiferromagnetic La sub(2)CuO sub(4+ delta ) have been investigated using the super(139)La NQR method. A positive sign of the pressure derivative, dT sub(N)/dP identical with 7.1 K/GPa, as well as an increase in the critical index beta from 0.29 at ambient pressure to 0.33 at 1.3 GPa have been observed. The results were processed using the Green function method.
ISSN:0304-8853