Title

Controlled Electroplating And Electromigration In Nickel Electrodes For Nanogap Formation

Abstract

We report the fabrication of nickel nanospaced electrodes by electroplating and electromigration for nanoelectronic devices. Using a conventional electrochemical cell, nanogaps can be obtained by controlling the plating time alone and after a careful optimization of electrodeposition parameters such as electrolyte bath, applied potential, cleaning, etc. During the process, the gap width decreases exponentially with time until the electrode gaps are completely bridged. Once the bridge is formed, the ex situ electromigration technique can reopen the nanogap. When the gap is ∼1 nm, tunneling current-voltage characterization shows asymmetry which can be corrected by an external magnetic field. This suggests that charge transfer in the nickel electrodes depends on the orientation of magnetic moments. © 2010 IOP Publishing Ltd.

Publication Date

11-5-2010

Publication Title

Nanotechnology

Volume

21

Issue

44

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0957-4484/21/44/445304

Socpus ID

77958526562 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77958526562

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