Mittwoch, 21. Juli 2010

Postdoctoral Position Cornell University

Postdoctoral Position
Magnetic Resonance Force Microscopy
Available Immediately

John Marohn (
Dept. of Chemistry and Chemical Biology
Cornell University
Ithaca, NY 14853-1301 USA

A postdoctoral research position is available immediately in the Department of Chemistry and Chemical Biology at Cornell University. The goals of the project are to detect and image individual nitroxide electron spin labels affixed to biomolecules and to detect and image small numbers of nuclear spins using magnetic-tipped cantilevers. The work will harness recent breakthroughs in the mechanical detection of magnetic resonance from electron spins [1,2] and nuclear spins [3], and will make particular use of attonewton-sensitivity cantilevers fabricated by our team at the Cornell Nanoscale Science and Technology (nanofabrication) facility [4].

The candidate should have an interest in magnetic resonance and experience in the design and construction of scanned probe microscope (or related) instrumentation, ideally involving high vacuum and cryogenic temperatures. The ideal candidate would also have experience in nanopositioning equipment, digital electronics, lasers, fiber optics, microwave electronics, and radiofrequency electronics.

Interested candidates should send a curriculum vitae to John Marohn at The vitae should include the candidate's publication list, the names of three references, a summary of research skills, and a statement of his/her research interests and plans. Please include the phrase “Cornell MRFM Postdoc” in the title of your email.


[1] Moore, E. W.; Lee, S.-G.; Hickman, S. A.; Wright, S. J.; Harrell, L. E.; Borbat, P. P.; Freed, J. H. & Marohn, J. A. Scanned-probe detection of electron spin resonance from a nitroxide spin probe. Proc. Natl. Acad. Sci. U.S.A., 2009, 106, 22251 - 22256. doi = 10.1073/pnas.0908120106.

[2] Moore, E. W.; Lee, S.-G. ; Hickman, S. A.; Harrell, L. E. & Marohn, J. A. Evading surface- and detector frequency noise in harmonic oscillator measurements of force gradients. Appl. Phys. Lett. (in press), 2010.

[3] Degen, C. L.; Poggio, M.; Mamin, H. J.; Rettner, C. T. & Rugar, D. Nanoscale magnetic resonance imaging. Proc. Natl. Acad. Sci. U.S.A., 2009, 106, 1313 - 1317. doi = 10.1073/pnas.0812068106.

[4] See