Issue |
EPL
Volume 86, Number 2, April 2009
|
|
---|---|---|
Article Number | 27001 | |
Number of page(s) | 6 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/86/27001 | |
Published online | 21 April 2009 |
High-temperature superconductivity (
onset at 34 K) in the high-pressure orthorhombic phase of FeSe
1
European Synchrotron Radiation Facility (ESRF) - 6 Rue Jules Horowitz, BP 220, F-38043 Grenoble Cedex, France, EU
2
Institut NEEL, CNRS & Université Joseph Fourier - 25 Avenue des Martyrs, BP 166, F-38042 Grenoble Cedex 9, France, EU
Corresponding author: garbarin@esrf.fr
Received:
17
March
2009
Accepted:
31
March
2009
We have studied the structural and superconducting properties of –FeSe under pressures up to 26 GPa using synchrotron radiation and diamond
anvil cells. The bulk modulus of the tetragonal phase is 28.5(3) GPa, much
smaller than the rest of Fe based superconductors. At 12 GPa we observe a
phase transition from the tetragonal to an orthorhombic symmetry. The high-pressure orthorhombic phase has a higher Tc reaching 34 K at 22 GPa.
PACS: 74.70.-b – Superconducting materials / 61.50.Ks – Crystallographic aspects of phase transformations; pressure effects
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.