Oak Ridge, USA
The Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL) operates the High Flux Isotope Reactor (HFIR), the United States’ highest flux reactor based neutron source, and the Spallation Neutron Source (SNS), the world’s most intense pulsed accelerator based neutron source. Together these facilities operate 30 instruments for neutron scattering research, each year carrying out in excess of 1,000 experiments in the physical, chemical, materials, biological and medical sciences for more than 3,000 visiting scientists. HFIR also provides unique facilities for isotope production and neutron irradiation. To learn more about Neutron Sciences at ORNL go to: http://neutrons.ornl.gov. The Computing and Computational Sciences Directorate (CCSD) in ORNL is home to some of the world’s most advanced supercomputing infrastructures (For more: https://www.olcf.ornl.gov).
The Quantum Condensed Matter Division (QCMD) https://neutrons.ornl.gov/qcmd in the Neutron Sciences Division (NScD) at ORNL operates 13 instruments for elastic and inelastic neutron scattering studies of materials including the Magnetism Reflectometer. Instruments are located at both HFIR and SNS. QCMD conducts research on materials with emergent properties that are manifestly quantum in origin. Some examples of current interest include superconductivity, toplogical insulators, low dimensional magnetism, nanocomposite and mesoscale magnetic materials.
Quantum Condensed Matter Division (QCMD) has an immediate opening for an outstanding candidate for a postdoctoral position with a strong background in Physics and with skills in computer/computational science to be involved in development of highly optimized software tools for the analysis and modeling of Grazing Incidence Neutron Scattering at the Spallation Neutron Source of the interface driven properties of complex heterostructures.
This position will be located in in the Thin Films and Nanostructures Group of the Quantum Condensed Matter Division (TFN QCMD) and benefits from strong interactions with the Center for Nanophase Materials Sciences (CNMS) and Computing and Computational Sciences Directorate (CCSD) at ORNL and will comprise a diverse spectrum of nanoscience activities. Neutron Reflectometry at the SNS is used to investigate thin film heterostructures which exhibit unusual physical properties that are important for science and technology and represent recent key innovations. The availability of high performance polarized and unpolarized neutron reflectometry is vital for understanding properties in the systems that include: (i) innovative new generation of heterostructures based on integrating topological insulators with conventional materials to induce ferromagnetic interactions with symmetry breaking at the interface ; (ii) multifunctional oxide heterostructures with unusual physical properties important from both the fundamental and device application viewpoints; (iii) spintronic devices using magnetic tunnel junction with a perpendicular magnetic anisotropy, (iv) tunnel barriers in hybrid organic/metallic spin-valve structures; and (v) structural characteristics of active layers in organic photovoltaic devices.
The successful candidate will conduct scientific research using exceptional experimental capability and will be engaged in development of highly optimized software tools for the analysis and modeling of Grazing Incidence Neutron Scattering (GINS) at the Spallation Neutron Source of the interface driven properties of complex heterostructures. Full training will be given in all aspects of neutron reflectometry including beamline operation, data acquisition, processing and modeling.
Work Directions and Interfaces:
Reports to Valeria Lauter. Will interface with the MR instrument team, Software scientists.
Applicants must hold a Ph.D. in physics, chemistry, chemical engineering, materials science or a related discipline from an
accredited institution. Candidates must be self-motivated and have good interpersonal, communication and presentational skills. The date of application must be within 5 years of the most recent degree, and all degree requirements must be complete before starting the appointment. Certain exceptions may be considered. This position is a temporary, full-time assignment of 24 months months with a possibility of an extension of up to 12 months depending on the funding situation. Initial appointments and extensions are subject to performance and availability of funding.
Previous experience with neutron or x-ray reflectometry is desirable as well as experience in programming languages such as C/C++/Fortran, Python.
Go to https://www.ornl.gov/careers .
This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.
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If you have trouble applying for a position, please email ORNLR@ornl.gov.