Abstract

A study of the long-range, local and electronic structure of Nd 0.5Sr 0.5MnO 3 films of varying thickness between 500 and 2000 Å has been performed. Local structure measurements at the Sr K-edge reveal a reduction of the Mn–O–Mn bond angles in films below 1000 Å. Spin-polarized measurements reveal splitting of the Mn 3d e g state in the strained region of the films and are consistent with a two-layer model for thick films with a relaxed undistorted layer on top of a strained structurally distorted layer near the substrate.

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