* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, June 29, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • 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
    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Emerging Memory and Storage Technology Market Analysis Report 2025-2034 | AI and HPC Boom Fuels Surging Demand for Fast, Low-Power Memory Devices – Yahoo Finance

    How AI and HPC Are Driving Explosive Growth in Fast, Low-Power Memory Technologies Through 2034

    Ostin Technology (OST): Volatility’s Warning or Contrarian Opportunity? – AInvest

    Ostin Technology (OST): Navigating Market Volatility – Red Flag or Hidden Opportunity?

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    Wayve Expands Engineering Leadership to Power Next-Gen Autonomous Driving Technology – Silicon Canals

    Wayve Boosts Engineering Leadership to Accelerate Next-Gen Autonomous Driving Innovation

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • 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
    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Emerging Memory and Storage Technology Market Analysis Report 2025-2034 | AI and HPC Boom Fuels Surging Demand for Fast, Low-Power Memory Devices – Yahoo Finance

    How AI and HPC Are Driving Explosive Growth in Fast, Low-Power Memory Technologies Through 2034

    Ostin Technology (OST): Volatility’s Warning or Contrarian Opportunity? – AInvest

    Ostin Technology (OST): Navigating Market Volatility – Red Flag or Hidden Opportunity?

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    Wayve Expands Engineering Leadership to Power Next-Gen Autonomous Driving Technology – Silicon Canals

    Wayve Boosts Engineering Leadership to Accelerate Next-Gen Autonomous Driving Innovation

    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

Strange metal state discovered in hydrogen-rich compound of lanthanum under pressure

June 18, 2024
in Science
Strange metal state discovered in hydrogen-rich compound of lanthanum under pressure
Share on FacebookShare on Twitter

Strange metal state discovered in hydrogen-rich compound of lanthanum under pressure

Structure of A15 lanthanum superhydride La4H23 (center), superconducting fluctuations in it (left), and phase diagram of La4H23 in strong magnetic fields (right). Credit: Dmitrii Semenok

Researchers from Skoltech, Jilin University and Beijing HPSTAR in China, and their German colleagues have synthesized and studied a new type of hydrogen-rich superconductor. Technically referred to as an A15-type lanthanum superhydride, with the formula La4H23, it shows superconductivity below minus 168 degrees Celsius at a pressure of 1.2 million atmospheres. The research results were published in the National Science Review.

Polyhydrides are a novel class of compounds synthesized at about 1 million times the normal atmospheric pressure on Earth. They can exhibit unique superconducting properties with record-high critical temperatures of up to -23 C in lanthanum decahydride LaH10, critical magnetic fields reaching 300 tesla, and critical current densities.

Even compared to other similar hydrides, the newly discovered La4H23 behaves unusually: It has a negative temperature coefficient of electrical resistance in a certain pressure range. That is, unlike ordinary metals, with a decrease in temperature its electrical resistance does not decrease but grows, the way it happens in semiconductors and many unconventional superconductors, such as cuprates.

“Initially, hydrides of the structural type A15 were discovered in the europium-hydrogen system, then they were found in the barium-hydrogen and lutetium-hydrogen systems. In the latter, the superconducting hydride La4H23 is formed. We performed first-principles calculations of the thermodynamic stability of these structures and found that the same compound should exist in the lanthanum-hydrogen system. Moreover, it must have an even higher critical temperature of superconductivity,” said one of the paper’s lead authors, Skoltech Research Engineer Grigoriy Shutov, also a Ph.D. student of computational and data science and engineering, explaining the motivation behind the study.

The synthesized lanthanum hydride La4H23 exhibits other unusual properties. Typically, in magnetic fields, superconducting transitions broaden significantly. The magnetic field creates inhomogeneities in the concentration of Cooper pairs in the volume of the superconductor. As a result, some areas of the sample go to the superconducting state later than others, and the transition seems to “stretch out” on the temperature scale. This is observed for such well-known materials as magnesium diboride, yttrium barium copper oxide, bismuth strontium calcium copper oxide, and others.

In polyhydrides, however, hardly any broadening of superconducting transitions is observed, which is very convenient in experimental practice. This occurs because magnetic vortices, also called Abrikosov vortices, are rigidly attached to existing structural inhomogeneities inside a polyhydride and do not introduce additional disturbances. The situation is different with the new lanthanum superhydride: It exhibits an unexpected narrowing of superconducting transitions.

One of the study’s lead authors, Dmitrii Semenok of HPSTAR, who holds a Ph.D. in materials science and engineering from Skoltech, commented, “This unusual behavior made us think about strong pulsed magnetic fields. We took a sample in a diamond anvil cell, prepared by our colleagues from Jilin University, and our curiosity led to another remarkable discovery.”

In strong pulsed magnetic fields up to 68 tesla, the newly synthesized lanthanum superhydride turned out to have a significant negative magnetoresistance, indicating the existence of an anomalous metallic state. Typically, metals have positive magnetoresistance, because electrons in a magnetic field follow longer trajectories.

Negative magnetoresistance is very rare but is often seen for cuprates and other unconventional superconductors in their so-called pseudogap, or strange metal, phase. In that phase, significant superconducting fluctuations are observed, which—while insufficient to create bulk superconductivity—do affect the material’s magnetic and transport properties noticeably.

“We are still far from understanding all those processes that determine the electron transport properties of superhydrides. Over the years, we have seen more and more evidence that hydrides are in many ways similar to unconventional superconductors like cuprates or pnictides despite the different mechanisms of electron-electron pairing,” Semenok added.

Hydride superconductors turn out to be a kind of bridge connecting the different classes of superconductors, simultaneously exhibiting the properties of conventional and unconventional ones. Researchers plan to continue studying various superhydrides in strong magnetic fields, focusing on their non-Fermi liquid behavior.

More information:
Jianning Guo et al, Unusual metallic state in superconducting A15-type La4H23, National Science Review (2024). DOI: 10.1093/nsr/nwae149

Citation:
Strange metal state discovered in hydrogen-rich compound of lanthanum under pressure (2024, June 17)
retrieved 18 June 2024
from https://phys.org/news/2024-06-strange-metal-state-hydrogen-rich.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-06-strange-metal-state-hydrogen-rich.html

Tags: Metal’sciencestrange
Previous Post

Researchers reveal influence of cyclic dynamic disturbance on coal-rock evolution and zoning

Next Post

Researchers identify potential caterpillar fungus for the production of bioactive compounds

Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

June 29, 2025
Guirassy latest candidate for Milan attack with 70m price tag – Yahoo Sports

Guirassy Emerges as Milan’s Top Striker Target with €70 Million Price Tag

June 29, 2025
‘Half the tree of life’: ecologists’ horror as nature reserves are emptied of insects – The Guardian

Half the Tree of Life at Risk: Ecologists Warn as Insect Populations Plummet in Nature Reserves

June 29, 2025
Health, science cuts affect future jobs – The Acorn

Health, science cuts affect future jobs – The Acorn

June 29, 2025
Why Some People Have Absolutely No Sense Of Direction, According To Science – YourTango

Why Do Some People Struggle with Direction? The Surprising Science of Getting Lost

June 29, 2025
Cardiologist shares how stress and modern lifestyle are raising heart risks in 30s and 40s: ‘Don’t wait for chest pain’ | Health – Hindustan Times – Hindustan Times

Cardiologist shares how stress and modern lifestyle are raising heart risks in 30s and 40s: ‘Don’t wait for chest pain’ | Health – Hindustan Times – Hindustan Times

June 29, 2025
79-year old man competing in his 16th World Police and Fire Games – WVTM

79-year old man competing in his 16th World Police and Fire Games – WVTM

June 29, 2025
The Economy Is So Off the Rails That They’re Trying to Figure Out How to Make Ads Specifically Targeted at AI Bots – Futurism

The Economy Is So Off the Rails That They’re Trying to Figure Out How to Make Ads Specifically Targeted at AI Bots – Futurism

June 29, 2025

WATCH: Health Secretary RFK Jr. Faces Intense Questioning on Vaccine Policy and Transparency in House Hearing

June 29, 2025
Jimmy Patronis hails House passage of bill benefitting military, veterans – Florida Politics

Jimmy Patronis Cheers House Approval of Landmark Bill Backing Military and Veterans

June 29, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
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 (700)
  • Economy (723)
  • Entertainment (21,613)
  • General (15,621)
  • Health (9,762)
  • Lifestyle (728)
  • News (22,149)
  • People (724)
  • Politics (729)
  • Science (15,940)
  • Sports (21,220)
  • Technology (15,708)
  • World (703)

Recent News

Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

June 29, 2025
Guirassy latest candidate for Milan attack with 70m price tag – Yahoo Sports

Guirassy Emerges as Milan’s Top Striker Target with €70 Million Price Tag

June 29, 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