TY - JOUR AU - Marianna Safronova AU - Sergey Porsev AU - Christian Sanner AU - Jun Ye BT - Physical Review Letters DA - 2018-04 DO - 10.1103/PhysRevLett.120.173001 PY - 2018 EP - 173001 T2 - Physical Review Letters TI - Two Clock Transitions in Neutral Yb for the Highest Sensitivity to Variations of the Fine-Structure Constant VL - 120 SN - 0031-9007 ER -