Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Superconductor01:24

Superconductor

1.0K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.0K
Types Of Superconductors01:28

Types Of Superconductors

897
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
897
Magnetic Susceptibility and Permeability01:31

Magnetic Susceptibility and Permeability

877
In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
877
Fermi Level Dynamics01:12

Fermi Level Dynamics

203
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
203
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

252
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
252

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Compression of Ribavirin to 35 GPa.

Crystal growth & design·2026
Same author

Fall-from-Bed Risk Prediction Using Physics-Based Bed Simulation.

Sensors (Basel, Switzerland)·2026
Same author

Pressure Tuning of the Low-Frequency Raman Response in Spin-Crossover Networks.

Journal of the American Chemical Society·2026
Same author

Phase relationships in homoleptic complexes of XeF<sub>2</sub>.

IUCrJ·2026
Same author

Usefulness of lung sound data collection using Skeeper SM-300® device: A pilot study.

PloS one·2026
Same author

SCSCTS: An improved SCS+C topographic correction model with shadow compensation for mountainous regions.

PloS one·2026
Same journal

Peripheral B-cell receptor repertoire predicts immune-related adverse events following immune checkpoint inhibitor therapy in advanced renal cell carcinoma.

Scientific reports·2026
Same journal

Effects of black soldier fly (Hermetia illucens L.) larvae zoocompost on the mineral element content of blue honeysuckle berries.

Scientific reports·2026
Same journal

Investigation on absorption refrigeration performance of R1243zf with imidazolium ionic liquid as the working pairs.

Scientific reports·2026
Same journal

DeepTriage-CN: integrating clinical text with vital signs for emergency department admission prediction in an aging population.

Scientific reports·2026
Same journal

Gold nanoparticles as dual-action antiviral agents: disruption of SARS-CoV-2 viral envelopes and RNA integrity.

Scientific reports·2026
Same journal

Comparison of capillary microsampling and venous blood for multi-pathogen serosurveillance.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: May 16, 2025

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.5K

Superconductivity in bcc-selenium under megabar pressure.

Zhongyan Wu1, Timofey Fedotenko2, Nico Giordano2

  • 1Department of Physics, Institute for High Pressure, Hanyang University, Seoul, 04763, Korea.

Scientific Reports
|April 4, 2025
PubMed
Summary
This summary is machine-generated.

Superconductivity in selenium was enhanced up to 9.4 K at 140 GPa near a phase transition. Selenium hydride synthesis requires higher energy conditions than theoretically predicted.

More Related Videos

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.3K
Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
04:51

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

Published on: July 8, 2021

2.7K

Related Experiment Videos

Last Updated: May 16, 2025

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.5K
Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.3K
Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
04:51

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

Published on: July 8, 2021

2.7K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • High-Pressure Physics

Background:

  • Superconductivity is a quantum mechanical phenomenon where electrical resistance vanishes.
  • High-pressure phases of elements can exhibit unique electronic properties, including superconductivity.
  • Selenium's superconducting properties under extreme pressure are not well-understood.

Purpose of the Study:

  • To investigate superconductivity in selenium under high pressure.
  • To explore the relationship between phase transitions and superconductivity in selenium.
  • To assess the conditions for synthesizing selenium hydride.

Main Methods:

  • Applying hydrostatic pressures up to 140 GPa using a diamond anvil cell.
  • Measuring electrical resistance R(T) as a function of temperature.
  • Conducting experiments at room temperature and high temperatures (up to 3000 K) with laser heating.
  • Applying external magnetic fields to validate superconductivity.

Main Results:

  • Enhanced superconductivity observed in selenium at 9.4 K and 140 GPa, near the β-Po-bcc phase transition.
  • Superconductivity onset confirmed by zero-resistance drop and suppression under magnetic field.
  • Anomalous R(T) peak suggests granular superconductivity.
  • Selenium did not react with hydrogen at 182 GPa (room temperature) or 102 GPa (3000 K), indicating higher energy requirements for selenium hydride synthesis.

Conclusions:

  • Phase-transition-related superconductivity can be enhanced in elements like selenium.
  • Current theoretical predictions for selenium hydride synthesis conditions may be underestimated.
  • Further research is needed to explore high-temperature superconductors under extreme pressures.