* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, May 30, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Allied Gaming & Entertainment Receives Expected Nasdaq Notice Regarding Delayed Quarterly Report – Business Wire

    Allied Gaming & Entertainment Faces Nasdaq Notice Over Delayed Quarterly Report

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Aziz Ansari made Keanu Reeves Indian food so he wouldn’t feel ‘freaked out’ directing him in Good Fortune (exclusive) – Entertainment Weekly

    Aziz Ansari Whips Up Indian Cuisine for Keanu Reeves to Ease Directing Jitters in Good Fortune

    Cassie Ventura welcomes third child – crossroadstoday.com

    Cassie Ventura Joyfully Welcomes Her Third Child!

    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    4Liberty Announces Collaboration with Itron to Drive Innovation in Utility Technology Adoption and Optimization – FinancialContent

    4Liberty Partners with Itron to Revolutionize Utility Technology and Boost Innovation

    Q1 2025 Quantum Technology Investment: What’s Driving the Surge in Quantum Investment? – The Quantum Insider

    Unleashing the Future: Exploring the Surge in Quantum Technology Investments for Q1 2025

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Allied Gaming & Entertainment Receives Expected Nasdaq Notice Regarding Delayed Quarterly Report – Business Wire

    Allied Gaming & Entertainment Faces Nasdaq Notice Over Delayed Quarterly Report

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Aziz Ansari made Keanu Reeves Indian food so he wouldn’t feel ‘freaked out’ directing him in Good Fortune (exclusive) – Entertainment Weekly

    Aziz Ansari Whips Up Indian Cuisine for Keanu Reeves to Ease Directing Jitters in Good Fortune

    Cassie Ventura welcomes third child – crossroadstoday.com

    Cassie Ventura Joyfully Welcomes Her Third Child!

    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    4Liberty Announces Collaboration with Itron to Drive Innovation in Utility Technology Adoption and Optimization – FinancialContent

    4Liberty Partners with Itron to Revolutionize Utility Technology and Boost Innovation

    Q1 2025 Quantum Technology Investment: What’s Driving the Surge in Quantum Investment? – The Quantum Insider

    Unleashing the Future: Exploring the Surge in Quantum Technology Investments for Q1 2025

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Quantum Surprises in Ultra-Clean Materials Redefine Metal Physics

June 26, 2024
in Science
Quantum Surprises in Ultra-Clean Materials Redefine Metal Physics
Share on FacebookShare on Twitter

Crystal Lattice Structure Art Concept

Researchers have discovered new phenomena in an ultra-clean sample of SrVO3, challenging existing theories on electron correlations in metals. Credit: SciTechDaily.com

New findings suggest the need to re-evaluate current theories on electron interactions, leading to a better understanding of magnetic properties, high-temperature superconductivity, and the behavior of transparent metals.

Researchers unveiled previously unobserved phenomena in an ultra-clean sample of the correlated metal SrVO3 in a paper published on June 24 in the journal Nature Communications. The study offers experimental insights that challenge the prevailing theoretical models of these unusual metals.

The international research team—from the Paul Drude Institute of Solid State Electronics (PDI), Germany; Oak Ridge National Laboratory (ORNL); Pennsylvania State University; University of Pittsburgh; the Pittsburgh Quantum Institute; and University of Minnesota—believes their findings will prompt a re-evaluation of current theories on electron correlation effects, shedding light on the origins of valuable phenomena in these systems, including magnetic properties, high-temperature superconductivity, and the unique characteristics of highly unusual transparent metals.

The Peculiar Properties of Fermi Liquids

The perovskite oxide material SrVO3 is classified as a Fermi liquid—a state describing a system of interacting electrons in a metal at sufficiently low temperatures. In conventional metals, electrons that conduct electricity move independently, commonly referred to as a Fermi gas. In contrast, Fermi liquids feature significant mutual interactions between electrons, meaning the motion of one electron strongly influences the others.

This collective behavior can lead to unique electronic properties with profound technological applications, providing insights into the interactions between electrons in correlated metals. SrVO3 serves as an ideal model system for studying electron correlation phenomena due to its crystalline and electronic simplicity. This simplicity is crucial for understanding complex phenomena such as magnetic order or superconductivity, which can complicate theoretical and experimental studies.

Ultraclean Materials

Flowing electricity through materials is a simple way to understand their properties. Measurements of ultraclean SrVO3 shown on the left schematically in the Hall bar device and the electron microscopy image, give new insight into the basic phenomena found in correlated electron materials. This is in contrast to SrVO3 that is dense with defects (right). The quality of the materials is manifest in the resistivity versus temperature where the ratio of the resistivity at room temperature to low temperature, RRR indicate the quality, shown in the plot. Credit: ORNL

The Impact of Material Purity on Experimental Accuracy

Another crucial factor in understanding experimental results that guide theoretical models for electron correlation effects is the presence or absence of defects in the material itself. Dr Roman Engel-Herbert, study lead and Director of PDI in Berlin, said, “If you want to get to the bottom of one of the best-kept secrets in condensed matter physics, then you must study it in its purest form; in the absence of any extrinsic disturbance. High-quality materials that are virtually defect-free are essential. You need to synthesize ultra-clean materials.”

Achieving a defect-free sample of SrVO3 has been a seemingly insurmountable challenge until now. By employing an innovative thin film growth technique that combines the advantages of molecular beam epitaxy and chemical vapor deposition, the team achieved an unprecedented level of material purity.

Dr. Matt Brahlek, first author of the study published today, quantifies the improvement: ”A simple measure of material purity is the ratio of how easily electricity flows at room temperature compared to low temperature, called the residual resistivity ratio, RRR value. If the metal contains many defects RRR values are low, typically around 2-5. We have been able to synthesize SrVO3 films with RRR nearly 100 times larger, 200, opening the door to study the true properties of the correlated metal SrVO3. In particular, the high material quality allowed accessing special regime at high magnetic fields for the first time, where surprises were found.”

Unprecedented Findings Challenge Established Theories

The interdisciplinary team of scientists was surprised to discover a series of peculiar transport phenomena that were in sharp contrast to the transport properties measured previously on highly defective samples. Their findings challenge the long-standing scientific consensus regarding SrVO3 as a simple Fermi liquid.

Engel-Herbert explains: “This situation was very exciting but also puzzling. While we reproduced previously reported transport behavior of SrVO3 in our highly defective samples, identical measurements in ultraclean samples with high RRR values differed.” Results from defective samples allowed a straightforward interpretation of the results that matched theoretical expectation. These results were used as experimental evidence that the theoretical understanding correctly captured the electron correlation effects in SrVO3. However, the team found that measurements on the ultraclean samples could not be explained so easily.

Brahlek added: “An observation that stands out is the expectation that the number of electrons that carry electricity in a metal is independent of temperature and magnetic field. This is of course true, but the interpretation of the measured quantity is not a direct measure of the carrier concentration. Rather, this quantity is mixed up with other aspects of the material properties, such as how defects and temperature impact the flow of electricity. We had to delve deeper into the physics to understand what we saw. That is what makes it so important and exciting.”

The researchers believe their discovery can serve as a basis to refine theoretical models and prompt a re-examination of established views and interpretations of materials exhibiting a sizeable electron correlation.

Engel-Herbert says: “Our job as experimental physicists is to push beyond the boundaries of the current understanding of nature. This is where discoveries can be made, where we advance science. As condensed matter physicist it is key to keep perfecting our object of study by challenging ourselves to push the limits of perfecting materials. This can potentially give new insights into the true behavior of this class of materials and enables a comprehensive explanation of the phenomena measured and observed.

“It takes an interdisciplinary team of experts to do this. While the job is not yet completed, our results are an opportunity for the community to recalibrate their theories; re-examining materials we believed were well-understood and re-evaluate their potential for applications.”

Reference: “Hidden transport phenomena in an ultraclean correlated metal” by Matthew Brahlek, Joseph D. Roth, Lei Zhang, Megan Briggeman, Patrick Irvin, Jason Lapano, Jeremy Levy, Turan Birol and Roman Engel-Herbert, 24 June 2024, Nature Communications.
DOI: 10.1038/s41467-024-48043-4

The research team included study lead Roman Engel-Herbert, who conceived and designed the experiment with PI Matthew Brahlek (now at Oak Ridge National Laboratory) who performed the growth, magnetotransport measurements and modeling; Lei Zhang, Joseph D. Roth, and Jason Lapano (Pennsylvania State University) assisted in the growth and characterization, Turan Birol (University of Minnesota) performed theory support, and Megan Briggeman, Patrick Irvin, and Jeremy Levy from the University of Pittsburgh confirmed and validated the magnetotransport measurements to high magnetic fields. The study was supported by the U.S. Department of Energy and the National Science Foundation.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/quantum-surprises-in-ultra-clean-materials-redefine-metal-physics/

Tags: QuantumscienceSurprises
Previous Post

Meet the Virus-Killing Plastic That’s Changing the COVID Game

Next Post

Black Holes and Dark Revelations: Gravitational Waves Provide New Clues to the Composition of Dark Matter

Opinion | How China’s maritime strategy is swapping force for research diplomacy – South China Morning Post

Opinion | How China’s maritime strategy is swapping force for research diplomacy – South China Morning Post

May 30, 2025
Newly discovered ‘ghost’ lineage linked to ancient mystery population in Tibet, DNA study finds – Live Science

Unveiling the Secrets of Tibet: A Fascinating ‘Ghost’ Lineage Revealed by DNA Study

May 30, 2025
‘Wicked,’ gardening and Amy Sedaris: 7 events this week – Albuquerque Journal

‘Wicked,’ gardening and Amy Sedaris: 7 events this week – Albuquerque Journal

May 30, 2025
Yankees have a busload of momentum heading into World Series rematch against Dodgers – AP News

Yankees have a busload of momentum heading into World Series rematch against Dodgers – AP News

May 30, 2025
Economists blame Trump tariffs, AI explosion for threatening global economy – theregister.com

How Trump’s Tariffs and the AI Boom Are Shaking Up the Global Economy

May 30, 2025
Allied Gaming & Entertainment Receives Expected Nasdaq Notice Regarding Delayed Quarterly Report – Business Wire

Allied Gaming & Entertainment Faces Nasdaq Notice Over Delayed Quarterly Report

May 30, 2025
UMC Health System, Texas Tech HSC to honor endowed chairs, professors – Lubbock Avalanche-Journal

Celebrating Excellence: UMC Health System and Texas Tech HSC Honor Distinguished Professors and Endowed Chairs

May 30, 2025
Paris on Politics: Israel-Gaza conflict gets personal in Chicago’s City Council – FOX 32 Chicago

Paris on Politics: Israel-Gaza conflict gets personal in Chicago’s City Council – FOX 32 Chicago

May 30, 2025
Anduril and Meta Team Up to Transform XR for the American Military – Anduril

Revolutionizing Military Training: Anduril and Meta Join Forces to Enhance XR Technology

May 30, 2025
Tennessee Sports Wagering Council cracks down on illegal sportsbooks – WKRN News 2

Tennessee Sports Wagering Council cracks down on illegal sportsbooks – WKRN News 2

May 29, 2025

Categories

Archives

May 2025
MTWTFSS
 1234
567891011
12131415161718
19202122232425
262728293031 
« Apr    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (650)
  • Economy (664)
  • Entertainment (21,571)
  • General (15,248)
  • Health (9,706)
  • Lifestyle (666)
  • News (22,149)
  • People (666)
  • Politics (672)
  • Science (15,886)
  • Sports (21,170)
  • Technology (15,651)
  • World (652)

Recent News

Opinion | How China’s maritime strategy is swapping force for research diplomacy – South China Morning Post

Opinion | How China’s maritime strategy is swapping force for research diplomacy – South China Morning Post

May 30, 2025
Newly discovered ‘ghost’ lineage linked to ancient mystery population in Tibet, DNA study finds – Live Science

Unveiling the Secrets of Tibet: A Fascinating ‘Ghost’ Lineage Revealed by DNA Study

May 30, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version