Abstract
High-pressure electrical conductivity experiments have been performed on the Mott insulator MnO to a maximum pressure of 106 GPa. We observe a steady decrease in resistivity to 90 GPa, followed by a large, rapid decrease by a factor of 105 between 90 and 106 GPa. Temperature cycling the sample at 87 and 106 GPa shows insulating and metallic behavior at these pressures, respectively. Our observations provide strong evidence for a pressure-induced insulator-to-metal transition beginning at 90 GPa.
| Original language | English |
|---|---|
| Article number | 220101 |
| Pages (from-to) | 220101-1-220101-4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 69 |
| Issue number | 22 |
| DOIs | |
| State | Published - Jun 2004 |
| Externally published | Yes |
Funding
This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under Contract No. W-7405-ENG-48. Funding for this research was provided by the LLNL B-Program. Much technical support was provided by Steve Falabella, and we thank L. T. Wiley, B. T. Goodwin, and R. S. Lee for support of this work. We also thank Dr. Tadashi Kondo of Tohoku University for his help and suggestions, and for providing us with his EOS data. In addition, we thank Dr. Andrew McMahan of LLNL and Dr. Warren Pickett of the University of California, Davis for their stimulating discussions and suggestions.
Fingerprint
Dive into the research topics of 'Pressure-induced metallization of the Mott insulator MnO'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver