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# Condensed matter

## News and Updates

### This Simple Material Could Scrub Carbon Dioxide From Power Plant Smokestacks

An easily synthesized chemical filter could stop the greenhouse gas from reaching the atmosphere.

### Scientists Discover Crystal Exhibiting Exotic Spiral Magnetism

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

### 19th International Workshop on Low Temperature Detectors (LTD19)

The 19th International Workshop on Low Temperature Detectors (LTD19) was an opportunity for researchers from around the world to exchange information about the

## Projects and Programs

### 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

### Extreme ultraviolet optical constants

Ongoing
In the vacuum ultraviolet and extreme ultraviolet (EUV), the indices of refraction of all materials become complex: N = n + ik, or N = 1- d + ik. Here, n is the

### Micro- and nano-optomechanical systems

Ongoing
Light can interact with mechanical systems in interesting and useful ways, not only probing the mechanical motion with spectacular sensitivity, but also driving

### Light-matter interactions in Semiconductor Nanostructures

Ongoing
The quantum optics of light interacting with semiconductor-based nanostructures is being studied to extend concepts of entanglement and coherence in atomic

## Publications

### Variable Strain in Armchair and Zigzag Epitaxial Graphene Nanoribbons

Author(s)
Heather Hill, Ching-Chen Yeh, Swapnil Mhatre, Ngoc Thanh Mai Tran, Hanbyul Jin, Adam Biacchi, Chi-Te Liang, Angela R. Hight Walker, Albert Rigosi

### Self-dual quasiperiodic percolation

Author(s)
Grace Sommers, Michael Gullans, David Huse
How does the percolation transition behave in the absence of quenched randomness? To address this question, we study a nonrandom self-dual quasiperiodic model

### Topological charge pumping with subwavelength Raman lattices

Author(s)
Ian Spielman, Gediminas Juzeliunas, Domantas Burba, mantas Raciunas
Recent experiments demonstrated deeply subwavelength lattices using atoms with $N$ internal states Raman-coupled with lasers of wavelength $\lambda$. The

### Efficient Computational Design of 2D van der Waals Heterostructures: Band-Alignment, Lattice-Mismatch, Web-app Generation and Machine-learning

Author(s)
Kamal Choudhary, Kevin Garrity, Francesca Tavazza, Ghanshyam Pilania
We develop a computational database, web-apps and machine-learning (ML) models to accelerate the design and discovery of two-dimensional (2D)-heterostructures

## Software

### 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

### HolograFREE

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

## Tools and Instruments

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

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