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Opportunity at National Institute of Standards and Technology (NIST)

Exploring Fundamental Limits Spin Currents in Novel Materials Systems

Location

Physical Measurement Laboratory, Quantum Measurement Division

RO# Location
50.68.41.B7674 Gaithersburg, MD

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

Advisers

Name E-mail Phone
Pomeroy, Joshua M. joshua.pomeroy@nist.gov 301.975.5508

Description

The production of highly non-equilibrium spin densities in solid-state materials offers an alternative state variable to the electron charge that may allow computation at much lower energy densities, providing a path forward for the extension of computing power and speed. Further, the quantum state of an electron spin is a leading contender for realizing quantum computation in a solid-state system, either as a memory, a qubit, part of a bus, or all of the above. In either case, an internally consistent system of devices and measurements is critical to establishing the fundamental limitations on spin diffusion and decoherence. Therefore, we are exploring novel materials systems ranging from ferromagnetic insulators to Heusler alloys as components of spin injection, transport, and detection systems. As part of a complimentary effort, we are also developing a laboratory scale production method for isotopically enriched materials, particularly, 28Si. Non-isotopically enriched materials are recognized as having reducing spin coherence times due to dephasing from isotopes that have non-zero nuclear spin.

 

Keywords:
Magnetic tunnel junctions; Ferromagnetic insulators; Transport measurements; Spin transport; Spin diffusion; Johnson-Silsbee; Meservey Tedrow; Spin decoherence; Isotopic enrichment; Ballistic spin current; Chargeless spin current;

Eligibility

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