English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Intercalation effect on hyperfine parameters of Fe in FeSe superconductor with Tc=42K

MPS-Authors
/persons/resource/persons126748

Medvedev,  Sergey A.
Sergiy Medvediev, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126601

Felser,  Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Shylin, S. I., Ksenofontov, V., Sedlmaier, S. J., Clarke, S. J., Cassidy, S. J., Wortmann, G., et al. (2015). Intercalation effect on hyperfine parameters of Fe in FeSe superconductor with Tc=42K. EPL, 109(6): 67004, pp. 1-6. doi:10.1209/0295-5075/109/67004.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-B296-1
Abstract
Fe-57-Mossbauer spectra of superconducting beta-FeSe, the Li/NH3 intercalate product and a subsequent sample of this intercalate treated with moist He gas have been measured in the temperature range 4.7-290 K. A correlation is established between hyperfine parameters and critical temperature T-c in these phases. A strong increase of the isomer shift upon intercalation is explained by a charge transfer from the Li/NH3 intercalate to the FeSe layers resulting in an increase of Tc up to 42K. A significant decrease of the quadrupole splitting above 240 K has been attributed to diffusive motion of Li+ ions within the interlamellar space. Copyright (C) EPLA, 2015