Condensed matter

News and Updates

Scientists Discover Crystal Exhibiting Exotic Spiral Magnetism

August 19, 2021

An exotic form of magnetism has been discovered and linked to an equally exotic type of electrons, according to scientists who analyzed a new crystal in which

Two vertical strings of electrons form magnons. Spin waves passing through the left magnon string are larger than those passing through the right, indicating the difference between an on and off state.

MIT, NIST Create First Room-Temp ‘Magnon Switch’ With Industrially Useful Properties

June 15, 2020

Scientists at the National Institute of Standards and Technology (NIST) and the Massachusetts Institute of Technology (MIT) have demonstrated a potentially new

Newfound Superconductor Material Could Be the ‘Silicon of Quantum Computers’

August 15, 2019

A potentially useful material for building quantum computers has been unearthed at the National Institute of Standards and Technology (NIST), whose scientists

Projects and Programs

PTIR combines the spatial resolution of AFM with the specificity of absorption spectroscopy

Nano-Chemical Imaging and -Spectroscopy (IR, nIR, VIS)

Ongoing

Conventional techniques for analyzing chemical composition, such as infrared (IR) microscopy often miss critically important nanoscale details. To overcome this

Measurement Techniques for Membranes and Membrane Proteins

Ongoing

Synthetic cell membrane constructs allow the simplification and complete control of a more complicated cellular system, as well as the incorporation of selected

Nanotribology for Nanomanufacturing (Archived)

Tribology is the science and technology of interacting surfaces in relative motion and includes studies of friction, adhesion, lubrication, and wear

Theory of the optical properties of materials

Ongoing

The overarching objective of this project is reliably calculating the bulk optical properties of materials, such as complex index of refraction, absorption, and

Publications

Noble-metal dark-edge fermiology: core-hole memory and the "Zeeman Auger" effect

January 12, 2022

Author(s)

Eric L. Shirley, Joseph Woicik, Conan Weiland, Ahmed Rumaiz, Charles Cardot, Joshua Kas, John Rehr

Gold and platinum have the face-centered-cubic crystal structure, are considered noble metals, and differ by one in atomic number. Near-edge M4,5 x-ray

Core-hole potentials and related effects

January 12, 2022

Author(s)

Eric L. Shirley, Lars G. Pettersson, D. Prendergast

We consider the constrained-occupancy and (linear-response) self-consistent-field methods for screening of core-hole potentials that affect core excitation near

Revisiting a local, real-space approach to dielectric screening calculations

January 12, 2022

Author(s)

Eric L. Shirley, John Vinson

Various many-body perturbation theory techniques for calculating electron behavior rely on W, the screened Coulomb interaction. The screening requires complete

2p x-ray absorption spectroscopy of 3d transition metal systems

January 12, 2022

Author(s)

Eric L. Shirley, John Vinson, Frank de Groot, Hebatalla Elnaggar, Federica Frati, Ru-pan Wang, Mario Delgado, Michel van Veenendaal, Maurits Haverkort, Robert Green, Yaroslav Kvashnin, Atsushi Hariki, Harry Ramanantoanina, Claude Daul, Bernard Delley, Michael Odelius, Marcus Lundberg, Oliver Kuhn, Sergey Bokarev, Keith Gilmore, Mauro Stener, Giovanni Fronzoni, Piero Decleva, Peter Kruger, Marius Retegan, Javier Fernandez-Rodriguez, Gerritt van der Laan, Yves Joly, Christian Vorwerk, Claudia Draxl, John Rehr, Arata Tanaka, Hidekazu Ikeno

A variety of methods are presented that are presently used to treat x-ray absorption spectra of transition-metal 2p edges in a wide range of compounds

Software

HolograFREE

An electron hologram is a fringe modulated image containing the amplitude and phase information of an electron transparent object. The HolograFREE routines

The measured and calculated RIXS maps at the oxygen K edge of lithium peroxide

OCEAN

OCEAN is a versatile package for calculating both optical/UV and core-edge spectroscopy. It is a first-principles code based on both ground-state density

Tools and Instruments

High Throughput (Combinatorial) Screening Tool for Characterization of Thin Film Thermoelectrics as a Function Temperature

High-throughput (combinatorial) metrologies have evolved as a useful approach to rapidly determine the composition-structure-property relationships for novel