The Romanian physicist Ștefan Procopiu had obtained the expression for the magnetic moment of the electron in 1913. The value is sometimes referred to as the "Bohr–Procopiu magneton" in Romanian scientific literature. The Weiss magneton was experimentally derived in 1911 as a unit of magnetic moment equal to joules per tesla, which is about 20% of the Bohr magneton.
The Romanian physicist Ștefan Procopiu had obtained the expression for the magnetic moment of the electron in 1913 The value is sometimes referred to as the "Bohr–Procopiu magneton" in Romanian scientific literature The Weiss magneton was experimentally derived in 1911 as a unit of magnetic moment equal to joules per tesla which is about 20% of the Bohr magneton