Realization of an effective ultrahigh magnetic field on a nanoscale

S. T. Chui, Jian Tao Wang, Lei Zhou, K. Esfarjani, Y. Kawazoe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In tunnel junctions of which at least one side is a ferromagnet, very large magnetic polarization change (≈ 0.1μB) and splitting of the spin-up and spin-down Fermi energy (≈ 0.1 eV) can be created under steady state finite current conditions (bias voltage ≈ 1 volt). This is much higher than can be created by the highest magnetic field on earth. We illustrate this with a specific calculation of a recently observed very large Hall effect in the Al side of a Co-I-Al tunnel junction. Other recent experiments that support this idea are discussed.

Original languageEnglish
Pages (from-to)L49-L55
JournalJournal of Physics Condensed Matter
Issue number3
Publication statusPublished - 2001 Jan 22


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