Microphase separation in Pr0.67Ca0.33MnO3 by small angle neutron scattering

Abstract

We have evidenced by small angle neutron scattering at low temperature the coexistence of ferromagnetism (F) and antiferromagnetism (AF) in Pr0.67Ca0.33MnO3. The results are compared to those obtained in Pr0.80Ca0.20MnO3 and Pr0.63Ca0.37MnO3, which are F and AF respectively. Quantitative analysis shows that the small angle scattering is not due to a mesoscopic mixing but to a nanoscopic electronic and magnetic ''red cabbage'' structure, in which the ferromagnetic phase exists in form of thin layers in the AF matrix (stripes or 2D ''sheets'').

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References in corpus (5)

• Unconventional Ferromagnetic Transition in La1-xCaxMnO3
• Phase Separation and the Low-Field Bulk Magnetic Properties of Pr0.7Ca0.3MnO3
• Mesoscopic and Microscopic Phase Segregation in Manganese Perovskites
• Why stripes? Spontaneous formation of inhomogeneous structures due to elastic interactions
• Phase separation, percolation and giant isotope effect in manganites

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