Weakening of the spin density wave gap at low temperatures in SrFe${}_2$As${}_2$ single crystals

Anirban Dutta, Neeraj Kumar, A. Thamizhavel +1

We report on temperature dependent scanning tunneling microscopy and spectroscopy studies of undoped SrFe${}_2$As${}_2$ single crystals from 6 K to 292 K. Resistivity data show spi…