Direct observation of phase separation in La1?x
CaxMnO3 |
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| Authors: | N N Loshkareva Yu P Sukhorukov S V Naumov N I Solin I B Smolyak E V Panfilova |
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| Institution: | (1) Institute of Metal Physics, Urals Branch of the Russian Academy of Sciences, 620219 Ekaterinburg, Russia |
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| Abstract: | In a study of the infrared optical absorption spectra of polycrystalline La1−x
CaxMnO3 (0.1⩽x⩽0.8), a contribution from free charge carriers is observed below the Curie temperature for compositions with x⩽0.4. The existence of this contribution for samples with a high resistivity is a direct proof of the existence of “metallic”
drops in an insulating matrix. The relative volume of the “metallic” phase is estimated.
Pis’ma Zh. éksp. Teor. Fiz. 68, No. 1, 89–92 (10 July 1998) |
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