Neutrons Sciences Directorate at ORNL

Neutron Science Points of Contact

Name Research Area
Doug Abernathy Wide Angular-Range Chopper Spectrometer (ARCS). Atomic-scale dynamics at thermal and epithermal energies
Ke An Engineering Materials Diffractometer (VULCAN). Residual stress, deformation mechanism of materials, phase transitions/transformation, and in situ/operando neutron diffraction in material systems (e.g., working batteries).
John Ankner Liquids Reflectometer (LR). Density profiles normal to the surface at liquid surfaces and liquid interfaces
Bryan Chakoumakos Nuclear and magnetic crystal structure systematics and structure-property relationships among inorganic materials, powder and single-crystal neutron and x-ray diffraction methods
Leighton Coates Macromolecular Neutron Diffractometer (MaNDi). Protein crystallography, biological structure and function
Sarah M. Cousineau Accelerator physics: beam transport and beam loss in accumulator rings and associated transport lines, collective effects in high-intensity beams, high-power beam collimation
Clarina Dela Cruz High-Resolution Powder Diffractometer (HB-2A). Magnetic and structural phase transitions, multiferroics, superconductors
Changwoo Do Dynamics and spatial distribution of ions in polyelectrolyte systems primarily using small-angle neutron scattering and neutron spin-echo techniques. Self-assembly of nanoparticles and block copolymer systems and their structural investigation
Georg Ehlers Cold Neutron Chopper Spectrometer (CNCS). Inelastic neutron scattering, magnetism
Jaime Fernandez-Baca Magnetic ordering and spin dynamics of strongly correlated electron materials such as magnetoresistive oxides, multiferroics, and related alloys using neutron scattering techniques
Ovidiu Garlea High-Resolution Powder Diffractometer (HB2A). Magnetic and structural phase transitions, orbital ordering, low-dimensional quantum magnetism
Garrett Granroth Fine-Resolution Fermi Chopper Spectrometer (SEQUOIA). Atomic-scale dynamics in the 0 – 2eV range, magnetic materials, quantum magnetism, disordered magnets
William T. Heller Extended Q-Range Small-Angle Neutron Scattering Diffractometer (EQ-SANS). Large-scale structures in a variety of materials, including biological molecules, polymers, colloidal systems
Ken Herwig Atomic scale dynamics, diffusive and vibrational motions of adsorbed molecules or large molecules
Christina Hoffmann Single Crystal Diffractometer (TOPAZ). Atomic structure in moderate-unit-cell single crystal samples
Ashfia Huq Powder Diffractometer (POWGEN). Atomic structure analysis of powder crystalline and non crystalline materials using the Rietveld and PDF method
John Katsaras Soft condensed matter physics: structural determination of biologically relevant systems and their interactions through the use of appropriate scattering techniques
Alexander Kolesnikov Condensed matter physics: lattice dynamics, phase transitions, and disordered materials. Materials chemistry: energy materials
Mark Lumsden Neutron spectroscopy, magnetic materials, low-dimensional quantum magnetism
Eugene Mamontov Backscattering Spectrometer (BASIS). Atomic scale dynamics, diffusive motions of molecules on surfaces and in confinement
Flora Meilleur Image-Plate Single-Crystal Diffractometer (IMAGINE). Biophysical chemistry of proteins, focusing on structure and function relationships, protein crystallography
Yuri Melnichenko Small angle neutron scattering; soft condensed matter; phase transitions and critical phenomena in liquid and supercritical polymer solutions, gels and blends; dynamics and structure of fluids confined in small pores
Herb Mook Magnetism and lattice dynamics of highly correlated electronic systems such as heavy fermion materials and the high temperature superconductors
Dean Myles Center for Structural Molecular Biology, biological structure & function, bio-SANS, bio-mimetics, protein crystallography, deuterium labeling
Steve Nagler Inelastic neutron scattering and diffraction, novel materials, correlated electron systems, low dimensional and quantum magnetism, molecular magnets, phase transitions
Jörg Neuefeind Disordered Materials Diffractometer (NOMAD). Atomic structure of liquids and glasses, neutron and hard x-ray scattering.
Michael Ohl Neutron Spin Echo Spectrometer (NSE). Inelastic neutron scattering, dynamics in glasses and disordered materials
Andrew Payzant Residual stress mapping in engineering and research samples, micro residual stresses in polycrystalline composites, crystal structure and in situ studies
Andrey Podlesnyajk Cold Neutron Chopper Spectrometer (CNCS). Inelastic neutron scattering, magnetism, correlated electronic systems, lattice and spin excitations
Lee Robertson Local atomic arrangements in alloys, martensitic phase transitions, lattice dynamics, structure and dynamics of liquids and amorphous materials
António M. dos Santos Magnetism, Inorganic chemistry, High-pressure environments, Phase transitions, Geochemistry and geological materials
Greg Smith Neutron reflectometry, soft condensed matter, thin films and interfaces, biomimetic materials
Chris Tulk Spallation Neutrons and Pressure Diffractometer (SNAP). Atomic structure at pressures up to 100 Gp; Small-angle scattering from liquids and glasses, and analysis of disorder in crystalline materials
Volker Urban Small angle neutron and x-ray scattering, macromolecular structures, soft condensed matter and biological systems
Xiaoping Wang Single Crystal Diffractometer (TOPAZ, BL-12), Chemical Crystallography, Structure and Bonding in Molecular Compounds, Energy Storage Materials.
George Wignall Small angle neutron scattering, macromolecular structures in the condensed and fluid states, polymers and polymers solutions
Barry Winn Neutron triple axis spectroscopy, shape memory alloys
Feng Ye Phase transition, Magnetic ordering and spin dynamics of strongly correlated electron materials such as magnetoresistive oxides, frustrated system and multiferroics materials using neutron scattering techniques