Formatting APS Journal Articles :: Main Text
The Introduction gives background to the reader regarding the study. In this portion of the manuscript, the author writes about the history of their subject matter, some useful experiments conducted in the past (and why there are things still unknown), and a little bit about their study. This is the easiest section to format, because there is very little that needs be done.
The Introduction does not get its own level 1 header, and there should be no headers at all in the Introduction text.
If the author refers the Introduction in the text, use the word "Introduction" itself (without small caps, unlike other level 1 headers).
The first few words of the Introduction are in small caps. Try to have the small cap section be an introductory phrase or a word before its parenthetical abbreviation. Avoid small capping numbers, Greek letters, or abbreviations because on the printed page, these appear to be of a larger font and the result is unsightly. You may have to slightly reconstruct the sentence or write out a term that we ordinarily wouldn't have to define (such as one in the APS Abbreviations list).
Use the «txt» function in ABRA to indicate the beginning of the Introduction. It will automatically generate the «r» code, which signals where the small cap section ends. If this is not where you want it, then move the «r» code.