* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Tuesday, June 10, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Leading Proxy Advisory Firm Glass Lewis Recommends Shareholders Vote “FOR” Both of PENN Entertainment’s Director Nominees on the WHITE Proxy Card – Business Wire

    Glass Lewis Urges Shareholders to Support All PENN Entertainment Director Nominees on the WHITE Proxy Card

    Cisco Partners with Monumental Sports & Entertainment to Power New D.C. Arena – Cisco Newsroom

    Cisco Teams Up with Monumental Sports & Entertainment to Revolutionize the New D.C. Arena Experience

    Middle Eastern Entertainment Headlines at 5:49 a.m. GMT – Yahoo

    Exciting Updates from the Middle Eastern Entertainment Scene!

    Ceramic Dalmatian Entertainment is WLAF’s Business of the Week – WLAF

    Spotlight on Success: Ceramic Dalmatian Entertainment Shines as This Week’s Featured Business!

    Brass Lion Entertainment unveils co-op action RPG Wu-Tang: Rise of the Deceiver – VentureBeat

    Unleash Your Inner Warrior: Discover the Co-Op Action RPG Wu-Tang: Rise of the Deceiver!

    Entertainment lineup released for 2025 Mississippi State Fair – WAPT

    Exciting Entertainment Lineup Unveiled for the 2025 Mississippi State Fair!

  • 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
    SunHydrogen Unveils Large Hydrogen Reactor in Houston – Fuel Cells Works

    SunHydrogen Launches Groundbreaking Large-Scale Hydrogen Reactor in Houston

    Technology, Labor Rights, and Political Power in Kenya and Across Africa – Tech Policy Press

    How Technology is Shaping Labor Rights and Political Power Across Africa

    Reeves to Announce £86 Billion for Science and Technology in Spending Review – Bloomberg

    Reeves Set to Unveil Groundbreaking £86 Billion Investment in Science and Technology!

    Innovation at Scale: How P&G Transforms Business Through Technology – Procter & Gamble

    Revolutionizing Business: P&G’s Bold Journey into Technological Innovation

    Drag racer survives frightening airborne crash at World Wide Technology Raceway – FOX 2

    Drag racer survives frightening airborne crash at World Wide Technology Raceway – FOX 2

    Apple Watch and the future of wearable technology in healthcare – MSN

    Revolutionizing Healthcare: The Future of Wearable Technology with Apple Watch

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Leading Proxy Advisory Firm Glass Lewis Recommends Shareholders Vote “FOR” Both of PENN Entertainment’s Director Nominees on the WHITE Proxy Card – Business Wire

    Glass Lewis Urges Shareholders to Support All PENN Entertainment Director Nominees on the WHITE Proxy Card

    Cisco Partners with Monumental Sports & Entertainment to Power New D.C. Arena – Cisco Newsroom

    Cisco Teams Up with Monumental Sports & Entertainment to Revolutionize the New D.C. Arena Experience

    Middle Eastern Entertainment Headlines at 5:49 a.m. GMT – Yahoo

    Exciting Updates from the Middle Eastern Entertainment Scene!

    Ceramic Dalmatian Entertainment is WLAF’s Business of the Week – WLAF

    Spotlight on Success: Ceramic Dalmatian Entertainment Shines as This Week’s Featured Business!

    Brass Lion Entertainment unveils co-op action RPG Wu-Tang: Rise of the Deceiver – VentureBeat

    Unleash Your Inner Warrior: Discover the Co-Op Action RPG Wu-Tang: Rise of the Deceiver!

    Entertainment lineup released for 2025 Mississippi State Fair – WAPT

    Exciting Entertainment Lineup Unveiled for the 2025 Mississippi State Fair!

  • 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
    SunHydrogen Unveils Large Hydrogen Reactor in Houston – Fuel Cells Works

    SunHydrogen Launches Groundbreaking Large-Scale Hydrogen Reactor in Houston

    Technology, Labor Rights, and Political Power in Kenya and Across Africa – Tech Policy Press

    How Technology is Shaping Labor Rights and Political Power Across Africa

    Reeves to Announce £86 Billion for Science and Technology in Spending Review – Bloomberg

    Reeves Set to Unveil Groundbreaking £86 Billion Investment in Science and Technology!

    Innovation at Scale: How P&G Transforms Business Through Technology – Procter & Gamble

    Revolutionizing Business: P&G’s Bold Journey into Technological Innovation

    Drag racer survives frightening airborne crash at World Wide Technology Raceway – FOX 2

    Drag racer survives frightening airborne crash at World Wide Technology Raceway – FOX 2

    Apple Watch and the future of wearable technology in healthcare – MSN

    Revolutionizing Healthcare: The Future of Wearable Technology with Apple Watch

    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

Half-Century Quantum Mystery Solved: Scientists Directly Observe Spin Quadrupoles for the First Time

January 30, 2024
in Science
Half-Century Quantum Mystery Solved: Scientists Directly Observe Spin Quadrupoles for the First Time
Share on FacebookShare on Twitter

Quantum Computing Materials

South Korean researchers have made a groundbreaking discovery by directly observing spin quadrupoles in a spin-nematic phase using advanced x-ray and optical techniques. This achievement in studying Sr2IrO4 opens new possibilities in quantum computing and high-temperature superconductivity research.

The “spin-nematic phase,” a magnetic analog of liquid crystal, has been observed for the first time in a quantum spin system.

Liquid crystal represents a unique state of matter, combining characteristics of both liquids and solids. It possesses the ability to flow similarly to a liquid, yet its molecules maintain an alignment akin to that found in solids. The liquid crystal is widely used nowadays, for example, as a core element of LCD devices. The magnetic analog of this kind of material is dubbed the “spin-nematic phase”, where spin moments play the role of the molecules.

However, it has not yet been directly observed despite its prediction a half-century ago. The main challenge stems from the fact that most conventional experimental techniques are insensitive to spin quadrupoles, which are the defining features of this spin-nematic phase.

Breakthrough in Spin-Nematic Phase Observation

But now for the first time in the world, a team of researchers led by Professor Kim Bumjoon at the IBS Center for Artificial Low Dimensional Electronic Systems in South Korea succeeded at directly observing spin quadrupoles. This work was made possible through remarkable achievements over the last decades in synchrotron facility development.

Spin One Half Moments on a Square Lattice

Spin one-half moments on a square lattice. In addition to the classical antiferromagnetic order (classical AF), the spin moments can have various magnetic ground states, such as superposition of spin-singlet configurations (resonant valence bond; RVB) or antiferromagnet with large quantum fluctuations (quantum AF). In iridium oxide Sr2IrO4, spin quadrupole moments coexist with a canted antiferromagnet order. Credit: Institute for Basic Science

The IBS researchers focused their study on square-lattice iridium oxide Sr2IrO4, a material previously recognized for its antiferromagnetic dipolar order at low temperatures. This study newly discovered the coexistence of a spin quadrupolar order, which becomes observable through its interference with the magnetic order. This interference signal was detected by ‘circular-dichroic resonant x-ray diffraction’, an advanced x-ray technique employing a circularly polarized x-ray beam.

Advanced Techniques and Collaborations

Further verification of this discovery came through ‘polarization-resolved resonant inelastic x-ray scattering’, where the magnetic excitations were revealed to significantly deviate from the behaviors anticipated for those in

Dipole Quadrupole Interference in Circular Dichroic Resonant X Ray Diffraction

Dipole-quadrupole interference in circular dichroic resonant x-ray diffraction. (a) The spin quadrupole moments are formed at a higher temperature (263 K) than the magnetic moments (230 K). (b, c) At low temperatures, the interference between the spin quadrupole and the magnetic moments is manifested by circular dichroic resonant X-ray diffraction, a magnetic signal difference between left- and right-handed X-ray beams. Credit: Institute for Basic Science

conventional magnets. For the completion of these experiments, the researchers in South Korea have collaborated with Argonne National Laboratory in the US to construct a resonant inelastic x-ray scattering beamline in Pohang Accelerator Laboratory over the last four years.

Last but not least, the researchers used a series of optical techniques, including Raman spectroscopy and magneto-optical Kerr effect measurement, to show that the formation of the spin quadrupole moments occurs at higher temperatures than the magnetic order. Within this temperature range, the iridium oxide has only spin quadrupole moments but no magnetic order, realizing a spin-nematic phase.

Taken together, this is the first direct observation of the spin quadrupole moments in a spin-nematic phase.

Inelastic X Ray Scattering Spectrometer

(a, b) Drawing (a) and photograph (b) of the resonant inelastic x-ray scattering spectrometer installed at the 1C beamline of PLS-II. Credit: Institute for Basic Science

“This research was feasible because the infrastructure and capabilities of x-ray experiments in South Korea had reached a globally competitive level,” says Prof. Kim Bumjoon, corresponding author of this study.

“The discovery of the spin-nematic phase also holds significant implications for quantum computing and information technologies,” adds Prof. Cho Gil Young, a co-author of this study and professor at Pohang University of Science and Technology.

Another interesting aspect of the spin-nematic phase is its potential for high-temperature superconductivity. In the spin-nematic phase, the spins are highly entangled, which was suggested by physicist P. W. Anderson as a key ingredient for high-temperature superconductivity. Furthermore, given that iridium oxide Sr2IrO4 has been extensively studied because of its striking similarities with the copper-oxide high-temperature superconducting system, which fuels a growing interest in this material as a potentially new high-temperature superconducting system, as well as its relation to the spin-nematic phase.

Reference: “Quantum spin nematic phase in a square-lattice iridate” by Hoon Kim, Jin-Kwang Kim, Junyoung Kwon, Jimin Kim, Hyun-Woo J. Kim, Seunghyeok Ha, Kwangrae Kim, Wonjun Lee, Jonghwan Kim, Gil Young Cho, Hyeokjun Heo, Joonho Jang, C. J. Sahle, A. Longo, J. Strempfer, G. Fabbris, Y. Choi, D. Haskel, Jungho Kim, J. -W. Kim and B. J. Kim, 13 December 2023, Nature.
DOI: 10.1038/s41586-023-06829-4

The study was funded by the Institute for Basic Science.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/half-century-quantum-mystery-solved-scientists-directly-observe-spin-quadrupoles-for-the-first-time/

Tags: Half-CenturyQuantumscience
Previous Post

Deciphering Life’s Timeline: Groundbreaking New Method Unlocks Secrets of Cellular Time

Next Post

When Does the Apex Legends Season End?

Across China: Chinese island’s ocean-friendly changes deliver dual gains in ecology, economy – Xinhua

Across China: Chinese island’s ocean-friendly changes deliver dual gains in ecology, economy – Xinhua

June 10, 2025
How Trump’s ‘gold standard’ politicizes federal science – The Conversation

How Trump’s ‘gold standard’ politicizes federal science – The Conversation

June 10, 2025
Summer science camps for kids at Exploration Place – KSN-TV

Summer science camps for kids at Exploration Place – KSN-TV

June 10, 2025
Vivrelle raises $62 million Series C round – Fortune

Vivrelle raises $62 million Series C round – Fortune

June 10, 2025
After Copa América ‘disaster,’ FIFA is using Club World Cup to be ready for 2026 – ESPN

After Copa América Setback, FIFA Focuses on Club World Cup to Gear Up for 2026

June 10, 2025
Big 4: Drivers that will power India’s economy – The Economic Times

Big 4: Drivers that will power India’s economy – The Economic Times

June 10, 2025
Leading Proxy Advisory Firm Glass Lewis Recommends Shareholders Vote “FOR” Both of PENN Entertainment’s Director Nominees on the WHITE Proxy Card – Business Wire

Glass Lewis Urges Shareholders to Support All PENN Entertainment Director Nominees on the WHITE Proxy Card

June 10, 2025
Texas teens face mental health crisis as majority lack services – WOAI

Texas teens face mental health crisis as majority lack services – WOAI

June 10, 2025
Life-threatening Politics – SaportaReport

Life-threatening Politics – SaportaReport

June 10, 2025
SunHydrogen Unveils Large Hydrogen Reactor in Houston – Fuel Cells Works

SunHydrogen Launches Groundbreaking Large-Scale Hydrogen Reactor in Houston

June 9, 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 (679)
  • Economy (693)
  • Entertainment (21,598)
  • General (15,302)
  • Health (9,735)
  • Lifestyle (697)
  • News (22,149)
  • People (694)
  • Politics (700)
  • Science (15,912)
  • Sports (21,195)
  • Technology (15,679)
  • World (678)

Recent News

Across China: Chinese island’s ocean-friendly changes deliver dual gains in ecology, economy – Xinhua

Across China: Chinese island’s ocean-friendly changes deliver dual gains in ecology, economy – Xinhua

June 10, 2025
How Trump’s ‘gold standard’ politicizes federal science – The Conversation

How Trump’s ‘gold standard’ politicizes federal science – The Conversation

June 10, 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