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Related Experiment Video

Updated: Jul 4, 2026

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

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Published on: July 8, 2021

Precursor State to Unconventional Superconductivity in CeIrIn5.

Sunil Nair¹, S Wirth, M Nicklas

¹Max Planck Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, 01187 Dresden, Germany.

Physical Review Letters

|June 4, 2008

Summary

Measurements in the heavy fermion superconductor CeIrIn(5) reveal a Kondo coherent state and precursor phenomena. These findings suggest similarities to high-temperature cuprate superconductors, particularly the pseudogap phase.

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Area of Science:

Condensed Matter Physics
Materials Science
Superconductivity

Background:

Heavy fermion superconductors exhibit complex electronic behaviors.
Understanding the relationship between normal state properties and superconductivity is crucial.
CeIrIn(5) is a model system for studying unconventional superconductivity.

Purpose of the Study:

To investigate the normal state electronic properties of the heavy fermion superconductor CeIrIn(5).
To explore similarities between CeIrIn(5) and high-temperature cuprate superconductors.
To identify precursor phenomena to superconductivity in CeIrIn(5).

Main Methods:

Hall effect measurements
Magnetoresistance measurements
Analysis of temperature-dependent transport properties

Main Results:

Establishment of a Kondo coherent state at low temperatures.
Observed deviations from Kohler's rule and quadratic temperature dependence of cotangent of Hall angle.
Identification of a precursor state with altered Hall mobility preceding superconductivity.

Conclusions:

CeIrIn(5) exhibits normal state properties analogous to cuprate superconductors.
The observed precursor state in CeIrIn(5) resembles the pseudogap phase in cuprates.
These findings provide insights into the unconventional mechanisms of superconductivity.