TY - RPRT TI - Persistent spin currents without spin-orbit coupling in a spin-1/2 ring. AU - D Schmeltzer AU - A Saxena AU - A R Bishop AU - D L Smith PY - 2005 DO - 10.1103/physrevlett.95.066807 UR - https://pubmed.ncbi.nlm.nih.gov/16090977/ ID - 16090977 ER -