PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Ghahari studying correlated and topological phases in Graphene Van der Waals (vdW) heterostructures

2023-05-30
(Press-News.org)

Fereshte Ghahari Kermani, Assistant Professor, Physics and Astronomy, received funding for the project: "Local Probe of Correlated and topological phases in graphene Van der Waals (vdW) heterostructures." 

These heterostructures are  constructed by different two-dimensional (2D) monolayers vertically stacked and weakly coupled by van der Waals interactions. Such interactions take place when adjacent atoms come close enough that their outer electron clouds barely touch. This action induces charge fluctuations that result in nonspecific, nondirectional attraction. 

For this project, Ghahari will employ novel fabrication techniques to engineer high quality graphene-based vdW heterostructures compatible with local probe measurements. She will then employ scanning tunneling microscopy/spectroscopy (STM/STS) measurements at ultra-low temperatures and high magnetic fields to locally investigate correlated phenomena such as superconductivity and Fractional quantum Hall (FQH) phases.  

This project aims to address some fundamental questions in the field. For example, what is the nature of superconductivity in twisted graphene multilayers? What is the underlying topological order of fractional quantum Hall (FQH) states in graphene? The outcomes of this project can have important implications on advancement of quantum technologies such as superconducting circuits and topological quantum computation.  

The scope of work and budget incorporated into this award cover the period from 05/01/2023 to 04/30/2026 for a total of $278,785.00 in Federal funds (distributed over award period). The federal funding available at this time is limited to $88,712.00. NIST estimates providing a total of $190,073.00 in future funding increments throughout the award period to support this project. Funding increments are typically made on an annual basis; however, the exact timing and amount will be dependent upon the remaining unobligated balance of the award, progress and performance on the award, and the availability of funding. 

###

About George Mason University

George Mason University is Virginia's largest public research university. Located near Washington, D.C., Mason enrolls 38,000 students from 130 countries and all 50 states. Mason has grown rapidly over the last half-century and is recognized for its innovation and entrepreneurship, remarkable diversity and commitment to accessibility. Learn more at http://www.gmu.edu.

END



ELSE PRESS RELEASES FROM THIS DATE:

A telescope’s last view

A telescope’s last view
2023-05-30
More than 5,000 planets are confirmed to exist beyond our solar system. Over half were discovered by NASA’s Kepler Space Telescope, a resilient observatory that far outlasted its original planned mission. Over nine and a half years, the spacecraft trailed the Earth, scanning the skies for periodic dips in starlight that could signal the presence of a planet crossing in front of its star.  In its last days, the telescope kept recording the brightness of stars as it was running out of fuel. On Oct. 30, 2018, its fuel tanks depleted, the ...

An algorithm for sharper protein films

An algorithm for sharper protein films
2023-05-30
Proteins are biological molecules that perform almost all biochemical tasks in all forms of life. In doing so, the tiny structures perform ultra-fast movements. In order to investigate these dynamic processes more precisely than before, researchers have developed a new algorithm that can be used to evaluate measurements at X-ray free-electron lasers such as the SwissFEL more efficiently. They have now presented it in the journal Structural Dynamics. Sometimes, when using the navigation system while travelling by car, the device will locate you off the road for a short time. This is due to the inaccuracy ...

4,000-year-old plague DNA found – the oldest cases to date in Britain

4,000-year-old plague DNA found – the oldest cases to date in Britain
2023-05-30
Researchers at the Francis Crick Institute have identified three 4,000-year-old British cases of Yersinia pestis, the bacteria causing the plague – the oldest evidence of the plague in Britain to date, reported in a paper published today in Nature Communications. Working with the University of Oxford, the Levens Local History Group and the Wells and Mendip Museum, the team identified two cases of Yersinia pestis in human remains found in a mass burial in Charterhouse Warren in Somerset and one in a ring cairn monument in Levens in Cumbria. They took small skeletal samples from 34 individuals across the ...

The making of a Mona Lisa hologram

The making of a Mona Lisa hologram
2023-05-30
WASHINGTON, May 30, 2023 – Holograms are often displayed in science fiction as colorful, life-sized projections. But what seems like the technology of the future is actually the technology of the present, and now it has been used to recreate the Mona Lisa. In Applied Physics Reviews, by AIP Publishing, researchers from Tianjin University, the Beijing Institute of Technology, Rowan University, the University of Missouri, Qingdao University, Shijiazhuang Tiedao University, and Beijing Jiaotong University developed an acoustic metasurface-based holography technique that uses a deep learning algorithm to generate and iteratively ...

How insects track odors by navigating microscale winds

How insects track odors by navigating microscale winds
2023-05-30
WASHINGTON, May 30, 2023 -- How do flying insects like important pollinators locate odor sources in the great outdoors, despite encountering highly variable wind conditions? They use odor plumes — which travel like smoke and form when the wind blows odor molecules from their source — to track down sources such as flowers or pheromones. But wind tunnels are typically unable to replicate realistic outdoor wind conditions. In Physics of Fluids, by AIP Publishing, University of Nevada at Reno researchers decided to explore microscale wind conditions in various outdoor environments to better understand what flying insects might experience while tracking odor plumes. Authors ...

Sleep health before SARS-CoV-2 infection and risk of long COVID

2023-05-30
About The Study: The findings of this study that included 1,979 women indicate that healthy sleep measured prior to SARS-CoV-2 infection, both before and during the COVID-19 pandemic, may be protective against post–COVID-19 condition (PCC), also known as long COVID. Future research should investigate whether interventions on sleep health may prevent PCC or improve PCC symptoms.  Authors: Siwen Wang, M.D., of the Harvard T. H. Chan School of Public Health in Boston, is the corresponding author.  To access the embargoed study: ...

Association between heart attack and cognition

2023-05-30
About The Study: In this study of 30,465 adults without myocardial infarction (MI; heart attack), stroke, or dementia, overall, incident MI was not associated with an acute decrease in global cognition, memory, or executive function at the time of the event compared with no MI. The rate of decline in global cognition, memory, and executive function was significantly faster over the years for adults with an MI event compared with those without an MI. These findings suggest that prevention of MI ...

Volunteering, health, and well-being of children and adolescents

2023-05-30
About The Study: Using survey data from across the United States, researchers found that volunteering was associated with higher odds of excellent or very good health and flourishing in children and adolescents, and with lower odds of anxiety in adolescents and behavioral problems in children and adolescents. Authors: Kevin Lanza, Ph.D., of the Michael & Susan Dell Center for Healthy Living in Austin, Texas, is the corresponding author.  To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/  (doi:10.1001/jamanetworkopen.2023.15980) Editor’s ...

Use of metabolic and bariatric surgery among youth

2023-05-30
About The Study: Use of and access to metabolic and bariatric surgery (MBS) have increased among U.S. youth and among most racial and ethnic groups. Compared with 2015-2019, MBS use in youths increased significantly in 2020-2021 during the first 2 years of the COVID-19 pandemic. In contrast, MBS rates in adults decreased in 2020.  Authors: Sarah E. Messiah, Ph.D., of the University of Texas Health Science Center at Houston School of Public Health—Dallas Campus, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamapediatrics.2023.0803) Editor’s ...

Racial, ethnic, and language disparities in identifying and mitigating central line–associated bloodstream infections

2023-05-30
About The Study: The results of this study of 8,269 pediatric patients show disparities in central line–associated bloodstream infection rates for Black patients and patients who speak a language other than English that persisted after adjusting for known risk factors, suggesting that systemic racism and bias may play a role in inequitable hospital care for hospital-acquired infections. Stratifying outcomes to assess for disparities prior to quality improvement efforts may inform targeted interventions to improve ...

LAST 30 PRESS RELEASES:

Mothers live longer as child mortality declines

Study reveals promising development in cancer-fighting nanotechnologies

Fat cells influence heart health in Chagas disease

C-Path’s TRxA announces its first biologics-focused RFP for academic investigators

Enhancing superconductivity of graphene-calcium superconductors

Federal Trade Commission actions on prescription drugs, 2000-2022

Fluoride exposure during pregnancy linked to increased risk of childhood neurobehavioral problems, study finds

The Ukraine war caused migrating eagles to deviate from their usual flight plan

Endangered migrating eagles impacted by Ukraine war

Study explores association between fluoride exposure in pregnancy and neurobehavioral issues in young children

Using magnetic resonance spectroscopy to design safer, higher-performance lithium batteries

Should your exercise goals be in minutes or steps? Study suggests they are equally beneficial

Racial and ethnic inequities in cancer care continuity during the COVID-19 pandemic among those with SARS-CoV-2

Effect of sleep restriction on adolescent cognition by adiposity

Webb Telescope offers first glimpse of an exoplanet’s interior

Alkyl-aromatic hybrid micelles formed from emergent umbrella-shaped molecules

First study from the African Ancestry Neuroscience Research Initiative identifies key genes in the brain that account for higher rates of some brain disorders in Black Americans

NIH awards Coast-to-Coast Consortium $5.6 million for All of Us Research Program

Ben-Gurion University scientist hunts for drug candidate to treat brain tumors

New Health Blueprint maps healthier future for rural, underserved Southwest Virginia

Survival benefit associated with participation in clinical trials of anticancer drugs

Expanding on the fundamental principles of liquid movement

Chemical Insights Research Institute partners with Duke University and the East-West Center to examine dust and ash from devastating Hawai’ian wildfires

NCCN publishes new resource for patients with intestinal cancer type most have never heard of before diagnosis

Subduction zone splay faults compound hazards of great earthquakes

Record low Antarctic sea ice ‘extremely unlikely’ without climate change

After hundreds of years, study confirms Bermuda now home to cownose rays

Scientists uncover promising treatment target for resistant brain cancer

Revolutionizing cancer treatment by intracellular protein delivery using hybrid nanotubes

Chemist Julian West makes C&EN magazine’s ‘Talented 12’ list

[Press-News.org] Ghahari studying correlated and topological phases in Graphene Van der Waals (vdW) heterostructures