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Pressure-induced superconductivity in quasi-2D CeRhIn5

Hegger1, Petrovic, Moshopoulou

  • 1Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Physical Review Letters
|September 16, 2000
PubMed
Summary
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Researchers discovered that applying pressure to the heavy-electron material CeRhIn5 causes a transition from an antiferromagnetic state to a superconducting state. This new understanding of CeRhIn5

Area of Science:

  • Condensed Matter Physics
  • Materials Science

Background:

  • CeRhIn5 exhibits a quasi-2D layered structure, with alternating CeIn3 and RhIn2 layers along the tetragonal c axis.
  • It is classified as a novel heavy-electron material, a class known for complex electronic behaviors.

Purpose of the Study:

  • To investigate the effects of hydrostatic pressure on the electronic and magnetic properties of CeRhIn5.
  • To understand the phase transitions induced by pressure in this quasi-2D heavy fermion system.

Main Methods:

  • Crystallographic analysis to understand the layered structure.
  • Application of hydrostatic pressure.
  • Measurement of magnetic and superconducting properties under pressure.

Main Results:

Related Experiment Videos

  • Hydrostatic pressure induces a first-order-like phase transition in CeRhIn5.
  • The transition shifts the material from an unconventional antiferromagnetic state to a superconducting state.
  • Superconductivity was observed with a critical temperature (Tc) of 2.1 K.

Conclusions:

  • Pressure is a key parameter in tuning the electronic and magnetic ground states of CeRhIn5.
  • The observed transition highlights the interplay between magnetism and superconductivity in heavy-electron materials.
  • CeRhIn5 presents a promising platform for studying pressure-induced quantum phase transitions.