Supplementary material and data in journal articles

IOP Publishing encourages authors to submit supplementary material at submission that will enhance the online version of a published research article and aid its discoverability. Supplementary material typically includes relevant material that does not form part of the main article, which may include additional data such as computer code, large tables, additional figures or appendices. It may also include multimedia files, such as video clips, animations or sound files, which are not suitable to form part of the main article (please note that multimedia files must not include any music). Supplementary material can include primary datasets where they fall within the file size limits outlined below. If the material is integral to the article then it should be submitted as part of the article rather than as supplementary material.

Supplementary material is not included in the PDF of the article or in any print version and does not form part of the Version of Record. As it is not considered integral to the article it is not subject to peer review and cannot be formally cited. Supplementary material is hosted for free with an article on IOPscience, in the format supplied by the author, and is accessible to the whole readership. Supplementary material is not formatted or edited by our production team, and so proofs are not provided to authors.

Files for supplementary material can be up to a maximum of 10 MB each. Authors wishing to associate larger amounts of supplementary material with their article are recommended make use of a data repository.

Authors should ensure the necessary permissions are obtained before including any third party supplementary material with their submission.