Rapid suppression of charge density wave transition in LaSb₂ under pressure

ABSTRACT

LaSb${}_2$ is found to be an example of an exceptionally pressure sensitive and tuneable, two-dimensional compound. In-plane electrical resistivity of LaSb${}_2$ under pressure up to 12.9 kbar was measured in zero and applied magnetic field. The charge density wave transition (observed at ∼350 K at ambient pressure) is completely suppressed by 6–7 kbar with a significant (in comparison with the ambient pressure) increase in Fermi surface gapping and transition hysteresis just above ambient pressure.

KEYWORDS:

• Lantanum diantimonide
• charge density wave
• pressure

Acknowledgments

The authors would like to thank Hermann Suderow for useful communications. P. C. C. and S. L. B. wish to acknowledge Hidalgo Alonso Quijano for inspiring this line of inquiry.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This Work at the Ames National Laboratory was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. The Ames National Laboratory is operated for the U.S. Department of Energy by Iowa State University under contract no. DE-AC02-07CH11358.