Paranjape, Mandar and Mitra, J and Raychaudhuri, AK and Mathur, ND and Blamire, MG (2004) Biaxial strain induced electrical inhomogenities and phase separation in the ferromagnetic metallic phase in thin films of La0.7Ca0.3MnO3: A scanning tunneling potentiometry/spectroscopy study. In: MRS Proceedings, 838 .
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We have investigated the effect of biaxial strain on local electrical/electronic properties in thin films of La0.7Ca0.3MnO3 with varying degrees of biaxial strain in them. The local electrical properties were investigated as a function of temperature by scanning tunneling spectroscopy (STS) and scanning tunneling potentiometry (STP), along with the bulk probe like conductance fluctuations.The results indicate a positive correlation between the lattice mismatch biaxial strain and the local electrical/electronic inhomogenities observed in the strained sample. This is plausible since the crystal structure of the manganites interfere rather strongly with the magnetic/electronic degrees of freedom. Thus even a small imbalance (biaxial strain) can induce significant changes in the electrical properties of the system.
| Item Type: | Journal Article |
|---|---|
| Publication: | MRS Proceedings |
| Publisher: | Cambridge University Press |
| Additional Information: | Copyright of this article belongs to Cambridge University Press. |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 18 Aug 2011 07:12 |
| Last Modified: | 18 Aug 2011 07:12 |
| URI: | http://eprints.iisc.ac.in/id/eprint/39907 |
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