Figure 1: Characterization of Hg1212 and Hg1223. | Nature Communications

Figure 1: Characterization of Hg1212 and Hg1223.

From: High pressure effects revisited for the cuprate superconductor family with highest critical temperature

Figure 1

(a,b) Crystal structure models of Hg1212 (a) and Hg1223 (b). Red, blue, yellow, green and light blue spheres correspond to Hg, Ba, Ca, Cu and O, respectively. Hashed circle indicates partially occupied oxygen. (c,d) Temperature dependence of resistivity (ρ–T) of Hg1212 (c) and Hg1223 (d) with various Tc. Colour of the curve corresponds to the text colour of Tc. (e,f) Correlation between ρ–T and temperature dependence of dc-susceptibility (χ–T) curves exemplified for Hg1212 (Tc=124 K) and Hg1223 (Tc=134 K). (g,h) Estimation of hole concentration (p) for Hg1212 (g) and Hg1223 (h) from a fitting curve (line) using the data in ref. 13 (solid circle). Squared symbols are data of present study. Colour of the symbol corresponds to the colour of the resistivity in panels of (c,d). Δp stands for the value measured from the optimal doping value at ambient pressure; namely, Δp<0 for underdoped and Δp>0 for overdoped samples.

Back to article page