DW injections and depinning in LSMO half ring with in-plane anisotropy. (a) Resistance of LSMO half ring as a function of the angular of DW position. The increase of the resistance for directions between 10° and 25° (see inset) indicates a magnetic domain wall is positioned between the two inner contacts of the wire. (b) DW depinning fields in LSMO half ring as determined from the jump in the resistance signal. Data shown is averaged over six measurements in different experimental runs each, with error bars corresponding to one standard deviation. The lines correspond to different fits of high current density data (assuming either symmetric or asymmetric behavior). The insets show examples of two depinning field measurements for 5 V and 9 V pulses, showing also the increase in the resistance fluctuations. Reprinted with permission from Ref. [57]. Copyright 2014, AIP Publishing LLC.