Abstract:
Nickel nanocontacts with quantized conductance have been obtained with the use of the electrochemical method of the formation of atomic-size contacts. The conductance jumps in the absence of the magnetic field are multiple of e2/h in most experiments. The maximum magnetoresistance reaches 210%. The performed current-voltage investigations make it possible to determine the conditions necessary for forming nanocontacts with giant magnetoresistance, as well as a possible cause of the absence of magnetoresistance in some electrochemically formed nanocontacts.
Citation:
R. G. Gatiyatov, S. A. Ziganshina, A. A. Bukharaev, “Magnetoresistance of electrochemically produced nickel nanocontacts with quantized conductance”, Pis'ma v Zh. Èksper. Teoret. Fiz., 86:6 (2007), 470–474; JETP Letters, 86:6 (2007), 412–415
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https://www.mathnet.ru/eng/jetpl868
https://www.mathnet.ru/eng/jetpl/v86/i6/p470
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