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Materials/Condensed Matter Print


Materials research provides the foundation on which the economic well being of our high-tech society rests. The impact of advanced materials ranges dramatically over every aspect of our modern world from the minutiae of daily life to the grand scale of our national economy. Invariably, however, breakthroughs to new technologies trace their origin both to fundamental research in the basic properties of condensed matter and to applied research aimed at manipulating properties (structural, physical, chemical, electrical, magnetic, optical, etc.).

Increasingly, the frontiers of materials research include materials that are "strongly correlated," characterized by strong coupling between a material's electrons with other electrons, magnetism, or the material lattice itself. This coupling often results in novel behavior, such as superconductivity, that may lead to technologically important applications.

Another topic that has recently taken on greater importance is nanoscience: the science of matter at dimensions between approximately 1 and 100 nanometers, where unique phenomena enable novel applications. The ability to image, measure, model, and manipulate matter at the nanoscale is leading to new technologies that will impact virtually every sector of our economy and our daily lives.

Much ALS research also focuses on certain subcategories of condensed materials, including magnetic materials, polymers, semiconductors, and water.

 

Materials/Condensed Matter Highlights

Correlated Materials, Nanostructures, Magnetism, Polymers, Semiconductors, High Pressure, Water, Advanced Materials


Correlated Materials

Twist Solves Bilayer Graphene Mystery

Flipping Photoelectron Spins in Topological Insulators

Studies Bolster Promise of Topological Insulators

Two Phase Transitions Make a High-Temperature Superconductor

Superconducting Topological Insulators

ALS Reveals New State of Matter

First Observation of Plasmarons in Graphene

Electron Correlation in Iron-Based Superconductors

Towards Heavy Fermions in Europium Intermetallic Compounds

Observation of a Macroscopically Quantum-Entangled Insulator

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy

Polaron Coherence Condensation in Layered Colossal Resistive Manganites

Slow Dynamics of Orbital Domains in Manganite

Surprising Quasiparticle Interactions in Graphene

First Direct Evidence of Dirac Fermions in Graphite

Nature and Origin of the Cuprate Pseudogap

Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides

Electron-State Hybridization in Heavy-Fermion Systems

First Direct Observation of Spinons and Holons

Pseudogaps, Polarons, and the Mystery of High-Tc Superconductivity

Tuning of the Metal–Insulator Transition via Alkali Adsorption

Femtosecond NEXAFS of Photoinduced Insulator-Metal Transition in VO2

Photoexcitation of a Volume Plasmon in Buckyballs

Influence of Topological Spin Fluctuations on Charge Transport

ARPES Provides Direct Evidence of Spin-Wave Coupling

A New Gap-Opening Mechanism in a Triple-Band Metal

Extracting the Eliashberg Function

Polaron Behavior in CMR Manganites

Nanostructures

Ultrafast Transformations in Superionic Nanocrystals

Shedding Light on Nanocrystal Defects

Guided Self-Assembly of Gold Thin Films

Borrowing from Nature to Produce Highly Structured Biomimetic Materials

Resonant Soft X-Ray Scattering of Tri-Block Copolymers

Cool Magnetic Molecules

A New Light on Disordered Ensembles

Probing Strain-Induced Changes in Electronic Structure with XMCD

The Surprising Appearance of Nanotubular Fullerene D5h(1)-C90

Platinum Nanoclusters Out-Perform Single Crystals

Structure of All-Polymer Solar Cells Impedes Efficiency

Compositional Variation Within Hybrid Nanostructures

Mechanical Behavior of Indium Nanostructures

A New Route to Nano Self-Assembly

Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

Self-Assembly of Polymer Nano-Elements on Sapphire

Reaction-Driven Restructuring of Bimetallic Nanoparticle Catalysts

Nanoscale Chemical Imaging of a Working Catalyst

Solving the Unsovlable: The Nanostructure of Gold at 1.1 Å Resolution

Electronic Structure of Cobalt Nanocrystals Suspended in Liquid

Formation of Metallic Copper Nanoparticles at the Soil-Root Interface

Diamondoid Monolayers as Monochromatic Electron Source

Mapping the Nanoscale Landscape

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers

Photoexcitation of a Volume Plasmon in Buckyballs

Magnetism

New Research on Jamming Behavior Expands Understanding

Reversing the Circulation of Magnetic Vortices

Not All Nanodisk Magnetic Vortices Are Created Equally

Hidden Rotational Symmetries in Magnetic Domain Patterns

Lensless Imaging of Magnetic Nanostructures

Direct Imaging of Antiferromagnetic Vortex States

Large Magnetization at Carbon Surfaces

Cool Magnetic Molecules

Probing Strain-Induced Changes in Electronic Structure with XMCD

X-Ray Imaging of the Dynamic Magnetic Vortex Core Deformation

Harnessing the Bacterial Power of Nanomagnets

Stochastic Domain-Wall Depinning in Magnetic Nanowires

Influence of Domain Wall Pinning on the Dynamic Behavior of Magnetic Vortices

Electric Field Control of Local Ferromagnetism with a Magnetoelectric Multiferroic

X-Ray Imaging Current-Driven Magnetic Domain-Wall Motion in Nanowires

Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism

First Proof of Ferromagnetic Carbon

Magnetic Vortex Core Reversal by Low-Field Excitations

Electronic Structure and Magnetism in Diluted Magnetic Semiconductors

Parallel and Antiparallel Interfacial Coupling in AF-FM Bilayers

Depth Profile of Uncompensated Spins in an Exchange-Bias System

Disorder-Induced Microscopic Magnetic Memory

Direct Imaging of Asymmetric Magnetization Reversal

Polymers

Polarized X-Rays Reveal Molecular Alignment in Printed Electronics

Resonant Soft X-Ray Scattering of Tri-Block Copolymers

A Better Anode Design to Improve Lithium-Ion Batteries

Structure of All-Polymer Solar Cells Impedes Efficiency

Biomimetic Dye Molecules for Solar Cells

A New Route to Nano Self-Assembly

Proton Channel Orientation in Block-Copolymer Electrolyte Membranes

Self-Assembly of Polymer Nano-Elements on Sapphire

Mapping the Nanoscale Landscape

Probing Organic Transistors with Infrared Beams

First Direct Imaging of Swollen Microgel Particles

Semiconductors

Twist Solves Bilayer Graphene Mystery

A Spintronic Semiconductor with Selectable Charge Carriers

Two Electron Holes in Hematite Facilitate Water Splitting

A New Route to Nanoscale Conducting Channels in Insulating Oxides

Bilayer Graphene Gets a Bandgap

Looking at Transistor Gate Oxide Formation in Real Time

Substrate-Induced Band-Gap Opening in Epitaxial Graphene

Controlling Graphene's Electronic Structure

Electronic Structure and Magnetism in Diluted Magnetic Semiconductors

Probing Organic Transistors with Infrared Beams

Engineering Metal Impurities in Multicrystalline Silicon Solar Cells

High Pressure

High-Pressure MOF Research Yields Structural Insights

Mineral Deformation at Earth's Core–Mantle Boundary

Two Novel Ultra-Incompressible Materials

The Iron Spin Transition in the Earth's Lower Mantle

Water

ALS Capabilities Reveal How Like Can Attract Like

Isotope and Temperature Effects in Liquid Water Probed by Soft X Rays

Ultrafast Core-Hole Induced Dynamics in Water

Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

Advanced Materials

The Molecular Ingenuity of a Unique Fish Scale

Learning from Roman Concrete

Space-Age Ceramics Get Their Toughest Test