TY - JOUR
T1 - Electric field modifications on the coercive force for electrochemical etched Co/Pt(111) films
AU - Chang, Cheng Hsun Tony
AU - Kuo, Wei Hsu
AU - Tsay, Jyh Shen
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/10/15
Y1 - 2016/10/15
N2 - The electrochemical etching process for Co/Pt(111) removes the surface atoms ended with a smooth surface and less surface defects due to the appearance of chloride anions. During the electrochemical etching process for Co/Pt(111), the squareness of the hysteresis loop remains nearly unity. The coercive force of Co/Pt(111) after electrochemical etching treatments is slightly enhanced while the electric field control of the coercive force with larger responses is demonstrated. The potential range for magnetic measurements is chosen between − 400 and − 600 mV to avoid the influences of the possible deposition/etching of the films. Within this potential window, the electric field control of the magnetic properties is manageable. Variations of the coercive force between 0.31 and 0.38 kOe are reproducible for electrochemical etched Co/Pt(111) under conditions of repeatedly electric potential at − 500 and − 400 mV. The easiness for operation, thickness control of magnetic films, and electric field modification of coercive force in an electrolyte condition show great advantages for further applications in spintronics.
AB - The electrochemical etching process for Co/Pt(111) removes the surface atoms ended with a smooth surface and less surface defects due to the appearance of chloride anions. During the electrochemical etching process for Co/Pt(111), the squareness of the hysteresis loop remains nearly unity. The coercive force of Co/Pt(111) after electrochemical etching treatments is slightly enhanced while the electric field control of the coercive force with larger responses is demonstrated. The potential range for magnetic measurements is chosen between − 400 and − 600 mV to avoid the influences of the possible deposition/etching of the films. Within this potential window, the electric field control of the magnetic properties is manageable. Variations of the coercive force between 0.31 and 0.38 kOe are reproducible for electrochemical etched Co/Pt(111) under conditions of repeatedly electric potential at − 500 and − 400 mV. The easiness for operation, thickness control of magnetic films, and electric field modification of coercive force in an electrolyte condition show great advantages for further applications in spintronics.
KW - Cobalt
KW - Coercive force
KW - Electric field
KW - Electrochemical etching
KW - Magneto-optical Kerr effect
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U2 - 10.1016/j.surfcoat.2016.03.037
DO - 10.1016/j.surfcoat.2016.03.037
M3 - Article
AN - SCOPUS:84975458095
SN - 0257-8972
VL - 303
SP - 136
EP - 140
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -