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

1.8K
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...
1.8K
Types Of Superconductors01:28

Types Of Superconductors

1.6K
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...
1.6K
Vapor Pressure02:34

Vapor Pressure

40.1K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
40.1K
Buffer Effectiveness02:19

Buffer Effectiveness

55.0K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
55.0K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

42.7K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
42.7K
Constant Pressure Calorimetry03:02

Constant Pressure Calorimetry

97.5K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.5K

You might also read

Related Articles

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

Sort by
Same author

Ruthenium-catalyzed oxidative cleavage of olefins to aldehydes.

The Journal of organic chemistry·2001
Same author

Pharmacokinetics of testosterone after percutaneous gel or buccal administration.

Fertility and sterility·2001
Same author

The leukocyte common antigen-related protein tyrosine phosphatase receptor regulates regenerative neurite outgrowth in vivo.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2001
Same author

Calpain activity in the rat brain after transient forebrain ischemia.

Experimental neurology·2001
Same author

Sharpening low-energy, standard-model tests via correlation coefficients in neutron beta decay.

Physical review letters·2001
Same author

Creation of chimeric mutant axolotls: a model to study early embryonic heart development in Mexican axolotls.

Anatomy and embryology·2001

Related Experiment Video

Updated: Jan 25, 2026

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

5.5K

Pressure effects on iron-based superconductor CaFe0.88Co0.12AsF.

J Huang1,2, C Zhang3,4,5, Y H Ma3,4,5

  • 1Kunming University of Science and Technology, Kunming 650093, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|May 4, 2019
PubMed
Summary
This summary is machine-generated.

High pressure suppresses superconductivity in CaFe$_{0.88}$Co$_{0.12}$AsF. Electron correlation is crucial for superconductivity in iron-based superconductors, as indicated by Hall coefficient and resistivity analyses.

More Related Videos

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.4K
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.7K

Related Experiment Videos

Last Updated: Jan 25, 2026

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

5.5K
Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.4K
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.7K

Area of Science:

  • Condensed Matter Physics
  • Materials Science

Background:

  • Iron-based superconductors exhibit complex electronic properties.
  • Understanding the factors influencing superconductivity is key for developing new materials.

Purpose of the Study:

  • To investigate the effect of high pressure on the superconductivity of CaFe$_{0.88}$Co$_{0.12}$AsF single crystals.
  • To analyze the relationship between electronic properties and superconductivity under pressure.

Main Methods:

  • Systematic measurements of electrical resistivity and Hall coefficient.
  • Application of high pressure up to 12.7 GPa.
  • Analysis of pressure and temperature dependence of various electronic parameters.

Main Results:

  • Superconductivity in CaFe$_{0.88}$Co$_{0.12}$AsF is rapidly suppressed by pressure, disappearing below 2 K at pressures above 12.7 GPa.
  • The Hall coefficient magnitude shows minimal dependence on pressure and temperature.
  • Analysis of resistivity, Hall coefficient, and Fermi-liquid behavior suggests electron correlation plays a vital role.

Conclusions:

  • Electron correlation is a significant factor in the superconductivity of iron-based superconductors.
  • High pressure fundamentally alters the electronic landscape, suppressing superconductivity in this material.