Title :
Observation of asymmetry in anomalous Hall effect measurements of magnetic dots
Author :
Griffiths, R.A. ; Nutter, P.W.
Author_Institution :
Sch. of Comput. Sci., Univ. of Manchester, Manchester, UK
Abstract :
Anomalous Hall effect (AHE) measurements are performed on magnetic dots that have two separate switching events. The CoPd-Pd-CoNi multilayers are obtained via sputtering and ion milling. Results show that CoPd has a negative AHE coefficient and CoNi a positive AHE coefficient, causing the voltage steps to have opposite sign. The hysteresis loop is shown to be asymmetric and is independent of the DC current direction.
Keywords :
Hall effect; cobalt alloys; magnetic hysteresis; magnetic multilayers; magnetic switching; milling; nickel alloys; palladium; palladium alloys; sputter deposition; CoPd-Pd-CoNi; DC current direction; anomalous Hall effect; hysteresis loop; ion milling; magnetic dots; magnetic switching; multilayers; sputtering; Magnetic hysteresis; Magnetic multilayers; Magnetic separation; Magnetization; Nonhomogeneous media; Switches; Voltage measurement;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156915
