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Related Experiment Video

Updated: May 30, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Superconductivity in CVD diamond films.

Yoshihiko Takano¹

¹National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|August 11, 2011

Summary

Boron-doped diamond becomes a superconductor when the boron concentration exceeds 3 × 10^20 cm^-3, transitioning from an insulator to a metallic state at low temperatures. This review explores the physics behind this unique semiconductor superconductivity.

Area of Science:

Solid-state physics
Materials science
Condensed matter physics

Background:

Diamond, typically an electrical insulator, can exhibit novel electronic properties when doped.
Boron doping is a key method to alter diamond's conductivity.

Purpose of the Study:

To review the physical properties and mechanisms of superconductivity in boron-doped diamond.
To explain the metal-insulator transition and superconductivity in this unique material.

Main Methods:

Angle-resolved photoemission spectroscopy (ARPES)
X-ray absorption spectroscopy (XAS)
Nuclear magnetic resonance (NMR)
Inelastic X-ray scattering (IXS)
Transport and magnetic measurements

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Main Results:

Boron doping induces semiconductive and metallic properties in diamond.
Superconductivity emerges in boron-doped diamond at low temperatures when boron concentration exceeds 3 × 10^20 cm^-3.
The metal-insulator transition is a precursor to superconductivity.

Conclusions:

Boron-doped diamond represents a unique class of semiconductor superconductor.
Understanding the mechanisms governing this phenomenon provides insights into novel superconductivity.
This material holds potential for future electronic and quantum applications.