Author/Authors :
Beltr?n-Porter، Daniel نويسنده , , Fuertes، Amparo نويسنده , , Oro-Sole، Judith نويسنده , , Frontera، Carlos نويسنده , , Martinez، Benjamin نويسنده , , Palacin، Maria Rosa نويسنده ,
Abstract :
A new phase has been observed during the sodium intercalation of hafnium nitride chloride as intermediate between the host (beta)-HfNCl and the already reported Na0.29HfNCl with Tc of 24 K; the new intermediate shows interlayer spacings ranging from 9.48 to 9.67 (anstrom), corresponds to a second stage intercalate of HfNCl and is superconducting with a critical temperature of 20 K.
