= Samuel Jackson Barnett
{c}
{tag=Physicist}
{title2=1873–1956}
= S. J. Barnett
{c}
{synonym}
= Samuel J. Barnett
{c}
{synonym}
<Samuel Jackson Barnett> demonstrated that mechanical rotation can magnetize a material, the <Barnett effect>. Rotation couples to the <angular momentum> associated with microscopic <magnetic moments>, producing a magnetic response without using an applied field as the driving cause. The effect connects mechanical <angular momentum> with <magnetization> and complements experiments in which a change of <magnetization> produces mechanical motion. It makes the <magnetic moment>'s connection with microscopic <angular momentum> experimentally accessible.<Magnetization by Rotation by Samuel Jackson Barnett>[Physical Review 6, 239–270 (1915), rotation-induced magnetization]{ref}
A <physicist> listed as professor of <physics> at the University of California, Los Angeles, in its 1927–1928 faculty announcement.<Announcement of the University of California at Los Angeles for the Academic Year 1927–28 by University of California, Los Angeles>[Officers and Faculty, p. 15: Professor of Physics (1927–1928)]{ref}
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