Meneghini, C and Levy, D and Mobilio, S and Ortolani, M and Nunez-Reguero, M and Kumar, A and Sarma, DD (2002) High-pressure structure and electronic transport in hole-doped La3/4Ca1/4MnO3 perovskites. In: PHYSICAL REVIEW, 65 (012111). 012111-1-012111-4.
PHYSICAL_REVIEW.pdf - Published Version
The structure and electronic transport properties of hole-doped La(3/4)Cat(1/4)MnO(3) perovskite have been investigated as a function of pressure up to about 15 GPa. Though the applied pressure enhances the electrical conductivity, the high-pressure resistivity data point out a competing mechanism interfering with the pressure-induced charge delocalization that prevent the system from reaching a fully metallic state around room temperature. X-ray diffraction results reveal unexpected structural modifications with increasing pressure that can be interpreted with changes in the coherence length of the Jahn-Teller distortions.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||12 Aug 2009 06:24|
|Last Modified:||19 Sep 2010 04:59|
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