There's a term for it:

#CoinageSovereignty

'The coinage sovereignty of the state is a second source of power from which the state can directly cover its money requirement. Nobody contests the state's right to mint coins or to issue treasury notes, indeed beyond that the state has, by virtue of its sovereignty, produced money from every possible source. From copper, nickel, iron, porcelain, aluminium and, above all, from - paper.... we have to state here only that the state can actually cover its need by virtue of its coinage sovereignty, and that it is not forced "to borrow money on interest from those of its citizens who have more of it than they themselves can use".'

https://archive.org/stream/GottfriedFederTheGermanStateOnANationalAndSocialistFoundation/Gottfried%20Feder%20-%20The%20German%20State%20on%20a%20National%20and%20Socialist%20Foundation_djvu.txt