Jason M. Bartell, Colin L. Jermain, Sriharsha V. Aradhya, Jack T. Brangham, Fengyuan Yang, Daniel C. Ralph, and Gregory D. Fuchs, “Imaging Magnetization Structure and Dynamics in Ultrathin Y3Fe5O12/Pt Bilayers with High Sensitivity Using the Time-Resolved Longitudinal Spin Seebeck Effect.” Phys. Rev. Appl. 7, 044004 (2017). [arXiv:1612.07610]