Accepted Manuscript Defect induced lattice instabilities and competing interactions in niobium doped lead zirconate single crystals D. Kajewski, P. Zajdel, R. Sitko, I. Lazar, A. Bussmann-Holder, J.-H. Ko, R. Roleder PII: S0925-8388(17)34426-2 DOI: 10.1016/j.jallcom.2017.12.230 Reference: JALCOM 44316 To appear in: Journal of Alloys and Compounds Received Date: 23 October 2017 Accepted Date: 21 December 2017 Please cite this article as: D. Kajewski, P. Zajdel, R. Sitko, I. Lazar, A. Bussmann-Holder, J.-H. Ko, R. Roleder, Defect induced lattice instabilities and competing interactions in niobium doped lead zirconate single crystals, Journal of Alloys and Compounds (2018), doi: 10.1016/j.jallcom.2017.12.230. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.