Title :
Critical speeding-up of non-equilibrium electronic relaxation near Ising-nematic transition in unstrained Ba(Fe1−xCox)2As2
Author :
Patz, Aaron ; Tianqi Li ; Sheng Ran ; Bud´Ko, Sergey ; Canfield, Paul C. ; Jigang Wang
Author_Institution :
Dept. of Phys. & Astron., Iowa State Univ. & Ames Lab. - USDOE, Ames, IA, USA
Abstract :
We observe a critical speeding up in the electronic relaxation time that implies that nematic fluctuations govern the electronic thermalization/cooling dynamics and that magnetic fluctuations dominate the nonlinear signals that arise from the Ising-nematicity.
Keywords :
barium compounds; high-speed optical techniques; laser cooling; nonlinear optics; Ba(Fe1-xCox)2As2; Ising-nematic transition; electronic cooling dynamics; electronic thermalization dynamics; magnetic fluctuations; nonequilibrium electronic relaxation; nonlinear signals; Fluctuations; Magnetic separation; Market research; Physics; Superconducting transition temperature; Temperature measurement; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
