Phase engineering of rare earth nickelates by digital synthesis

Middey, S and Meyers, D and Patel, Ranjan Kumar and Liu, X and Kareev, M and Shafer, P and Kim, J -W and Ryan, P J and Chakhalian, J (2018) Phase engineering of rare earth nickelates by digital synthesis. In: APPLIED PHYSICS LETTERS, 113 (8).

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Abstract

We report on the electronic and magnetic properties of a series of m EuNiO3/p LaNiO3] superlattices (thickness m and/or p = 1 unit cell) epitaxially grown on single crystalline NdGaO3 substrates. The structural symmetry of these films has been investigated by the combination of in-situ reflection high energy electron diffraction and X-ray diffraction measurements. The metal-insulator transition and the magnetic transition temperatures of the short-period superlattices with m >= p are modified from the corresponding bulk Eu1-xLaxNiO3 (x = p/m+p) composition. In contrast to the corresponding bulk doped compound with x = 0.67, the 1 EuNiO3/2 LaNiO3] film remains metallic down to at least 2K without signs of electronic or magnetic transitions. These findings demonstrate the power of the digital synthesis approach to realize electronic and magnetic phases of perovskite nickelates, unattainable in bulk. Published by AIP Publishing.

Item Type:	Journal Article
Publication:	APPLIED PHYSICS LETTERS
Publisher:	AMER INST PHYSICS
Additional Information:	Copy right for this article belong to AMER INST PHYSICS, 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	12 Sep 2018 15:17
Last Modified:	12 Sep 2018 15:17
URI:	http://eprints.iisc.ac.in/id/eprint/60658

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