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Opportunity at National Institute of Standards and Technology (NIST)

Magnetic Nanotechnology

Location

Material Measurement Laboratory, Materials Science and Engineering Division

RO# Location
50.64.21.B5607 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Dennis, Cindi L. cindi.dennis@nist.gov 301.975.6041

Description

The bulk magnetic character of materials with some nanometer scale critical material dimension (i.e., grain size, layer thickness, particle size. interparticle separation, rod diameter, nanocontact area) has been found to vary considerably from that found in the same materials lacking that nanoscale structure. The measurements focus on characterizing such novel magnetic behavior and understanding the origin of the new phenomena, so that the relationship between structure, processing, and properties can be established. Such a relationship is needed for industry to take advantage of these new materials. Novel phenomena being investigated include, but are not restricted to, enhanced magnetocaloric effects, unusual magnetic softness, improved magnetic hardness, giant magnetoresistance effects, spintronics, magnetic nanoparticles for medical imaging and disease treatment, ferromagnetism in semiconductors, optical transparency in ferromagnets, superparamagnetism, magnetorheology, and enhanced magneto-optic Kerr effects. In addition to a suite of magnetic measurements, numerous nonmagnetic measurement tools, including x-ray diffraction, electron and optical microscopy, and neutron reflectivity, are studied in this project. As a consequence of this work, very high sensitivity magnetic sensors, low energy loss transformers, room-temperature and low field magnetic refrigerators, higher energy product permanent magnets, transparent ferromagnets, and magnetically adjustable amplifiers may be possible in the future.

 

Keywords:
Ferromagnetism; Giant magnetoresistance; Magnetic nanoparticles; Magnetic semiconductors; Magnetic structure; Magnetocaloric effect; Nanomagnetism; Nanotechnology; Spintronics; Superparamagnetism;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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