Response to Comment (arXiv:1506.02787v1) on Selective Interface Control of Order Parameters in Complex Oxides

TL;DR

This paper responds to critiques about detecting charge order in ultrathin NdNiO3 films, clarifying the sufficiency of their data and contrasting with EuNiO3 to support their claims.

Contribution

It provides a detailed rebuttal to previous comments, clarifying the detection limits of charge order in ultrathin films and relating their findings to past studies.

Findings

No detectable charge order in ultrathin NdNiO3 films

Charge order in EuNiO3 is resolvable in similar conditions

Data supports the claim of absence of charge order in ultrathin NdNiO3

Abstract

In response to Lu et al, (arXiv:1506.02787v1), here we present a detailed writeup concerning the questions raised in their comment on our eprint (arXiv:1505.07451). The key question raised by Lu et al was if the bulk-like charge ordered state becomes indetectable with resonant scattering due to ultrathin film thickness. In this reply, we first detail the relation of our work to past work on the same compound by Staub et al to demonstrate that the presented data are indeed sufficient to support our claims of no charge order on ultra thin films of NdNiO3 (NNO) on NdGaO3 (NGO). Further, we demonstrate that if a well defined charge ordered phase exists in ultra thin films, it is indeed resolvable such as that in EuNiO3 (ENO).