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While these individual phenomena have been investigated in detail, it remains unclear how they are related to each other and to what extent uranium <jats:italic>f<\/jats:italic>-electron valence fluctuations influence each one. Here we use ligand site substituted URu<jats:sub>2<\/jats:sub>Si<jats:sub>2-<jats:italic>x<\/jats:italic><\/jats:sub>P<jats:sub><jats:italic>x<\/jats:italic><\/jats:sub> to establish their evolution under electronic tuning. We find that while hidden order is monotonically suppressed and destroyed for <jats:italic>x<\/jats:italic>\u22640.035, the superconducting strength evolves non-monotonically with a maximum near <jats:italic>x<\/jats:italic>\u22480.01 and that superconductivity is destroyed near <jats:italic>x<\/jats:italic>\u22480.028. This behavior reveals that hidden order depends strongly on tuning outside of the U <jats:italic>f<\/jats:italic>-electron shells. It also suggests that while hidden order provides an environment for superconductivity and anomalous metallic behavior, it\u2019s fluctuations may not be solely responsible for their progression.<\/jats:p>","DOI":"10.1038\/ncomms10712","type":"journal-article","created":{"date-parts":[[2016,2,19]],"date-time":"2016-02-19T10:05:28Z","timestamp":1455876328000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Unfolding the physics of URu2Si2 through silicon to phosphorus substitution"],"prefix":"10.1038","volume":"7","author":[{"given":"A.","family":"Gallagher","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K.-W.","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. M.","family":"Moir","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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