Title :
Observation of pseudogap above Tc in 122 and 111 iron-based superconductors by ultrafast optical spectroscopy
Author :
Kung-Hsuan Lin ; Kuan-Jen Wang ; Chung-Chieh Chang ; Yu-Chieh Wen ; Dzung-Han Tsai ; Yu-Ruei Wu ; Yao-Tsung Hsieh ; Ming-Jye Wang ; Bing Lv ; Ching-Wu Chu ; Maw-Kuen Wu
Author_Institution :
Inst. of Phys., Taipei, Taiwan
Abstract :
We studied optimally-doped (Ba0.6K0.4)Fe2As2 and LiFeAs by using ultrafast optical spectroscopy. Our temperature-dependent experimental results revealed that pseudogap exists above superconducting state in both materials.
Keywords :
barium compounds; high-speed optical techniques; lithium compounds; superconducting materials; superconductivity; time resolved spectroscopy; 111 iron-based superconductors; 122 iron-based superconductors; optimally-doped (Ba0.6K0.4)Fe2As2; pseudogap; superconducting state; temperature-dependent experimental results; ultrafast optical spectroscopy; Doping; Materials; Optical pumping; Physics; Spectroscopy; Superconductivity; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA