Scanning tunneling spectroscopy under pulsed spin injection

J. Ngai, Y. C. Tseng, P. Morales, V. Pribiag, J. Y.T. Wei, F. Chen, D. D. Perovic

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


An experimental technique was developed combining cryogenic scanning tunneling spectroscopy (STS) and pulsed quasiparticle spin injection. From spin equilibrium, the spin injection intended to perturb a superconducting thin film and the STS monitored its steady-state quasiparticle spectrum. While being both synchronized and decoupled from the STS circuitry, the pulsed injection circuit was designed to minimize Joule heating. It was found that this technique could be applied to any material that was amenable to spin injection and heteroepitaxial structuring, as a general method for probing local electronic properties under a bulk spin perturbation.

Original languageEnglish (US)
Pages (from-to)1907-1909
Number of pages3
JournalApplied Physics Letters
Issue number11
StatePublished - Mar 15 2004
Externally publishedYes


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