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Related Experiment Video

Updated: May 31, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

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Published on: March 24, 2019

Unconventional superconductivity in YNi(2)B(2)C.

T R Abu Alrub, S H Curnoe

    Journal of Physics. Condensed Matter : an Institute of Physics Journal
    |June 23, 2011
    PubMed
    Summary

    This study calculates superconducting properties using a semiclassical approximation. The findings for density of states and thermal conductivity align well with experimental data for YNi(2)B(2)C.

    Area of Science:

    • Condensed matter physics
    • Superconductivity research
    • Materials science

    Background:

    • Superconductors with quasi-two-dimensional Fermi surfaces and line nodes exhibit complex electronic properties.
    • Understanding the behavior of thermal conductivity in such materials is crucial for technological applications.

    Purpose of the Study:

    • To calculate the magnetic field angle-dependent density of states.
    • To determine the thermal conductivity (κ(zz)) for a superconductor with a quasi-two-dimensional Fermi surface and line nodes.
    • To compare theoretical predictions with experimental data for YNi(2)B(2)C.

    Main Methods:

    • Employing the semiclassical approximation, specifically the Doppler shift.
    • Calculating the density of states and thermal conductivity tensor component κ(zz).

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  • Analyzing materials with line nodes along k(x) = 0 and k(y) = 0.

    • Main Results:

    • The semiclassical approximation provides accurate predictions for the density of states.
    • Calculated thermal conductivity κ(zz) shows good quantitative agreement with experimental results.
    • The model successfully describes the behavior of YNi(2)B(2)C.

    Conclusions:

    • The semiclassical (Doppler shift) approximation is a valid and effective method for studying superconducting properties.
    • The theoretical framework accurately captures the magnetic field dependence of electronic states and thermal transport.
    • This work validates theoretical models against experimental findings in YNi(2)B(2)C, advancing the understanding of unconventional superconductivity.