Focused-ion-beam-fabricated nanoscale magnetoresistive ballistic sensors

S. Khizroev, Y. Hijazi, R. Chomko, S. Mukherjee, R. Chantrell, X. Wu, R. Carley, D. Litvinov

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


In this letter, authors demonstrate magnetoresistance of the order of 18% at room temperature for a focused-ion-beam-fabricated nanoconstriction with critical dimensions of the order of 35 nm. The main purpose of this work is to show that focused ion beam (FIB)-fabricated nanoconstrictions are relatively reproducible and thus could be further developed to obtain substantially larger magnetoresistance. Magnetoresistance is expected to increase if critical dimensions of nanoconstrictions are further reduced. The proposed focused-ion-beam-fabricated nanoconstrictions could be also used as devices to study the electron "ballistic" regime in the emerging fields of Spintronics and magnetoresistive random access memory (MRAM).

Original languageEnglish (US)
Article number042502
Pages (from-to)042502-1-042502-3
JournalApplied Physics Letters
Issue number4
StatePublished - 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Focused-ion-beam-fabricated nanoscale magnetoresistive ballistic sensors'. Together they form a unique fingerprint.

Cite this