de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Two-gap superconductivity in Ag1-xMo6S8 Chevrel phase

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons213763

Feig,  Manuel
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons146769

Bobnar,  Matej
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126891

Veremchuk,  Igor
Igor Veremchuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126556

Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126726

Leithe-Jasper,  Andreas
Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Feig, M., Bobnar, M., Veremchuk, I., Hennig, C., Burkhardt, U., Starke, R., et al. (2017). Two-gap superconductivity in Ag1-xMo6S8 Chevrel phase. Journal of Physics: Condensed Matter, 29(49): 495603, pp. 1-9. doi:10.1088/1361-648X/aa97fd.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002E-9804-8
Abstract
The superconducting properties of Ag1-xMo6S8 [x = 0.08(1)] Chevrel phase [T-c = 7.9(5) K] are studied on a sample compacted by spark plasma sintering. Both lower (B-c1 = 12(1) mT) and the upper [B-c2(0) approximate to 7.4(9) T] critical magnetic fields are obtained from magnetization and electrical resistivity measurements for the first time. The analysis of the low-temperature electronic specific heat indicates Ag1-xMo6S8 to be a two band superconductor with the energy gaps Delta(1) = 1.6 meV (95%) and Delta(2) = 0.7 meV (5%). Theoretical DFT calculations reveal a much stronger electron-phonon coupling in the studied Chevrel phase compared to earlier reports. Similar to MgB2, the Fermi surface of studied Chevrel phase is formed by two hole-like and one electron-like bands.