2 papers
cond-mat.supr-con2025
Ultrasound evidence for multicomponent superconducting order parameter in BaKFeAs with electron quadrupling phase
Chris Halcrow, Ilya Shipulin, Federico Caglieris +6
Experiments have pointed to the formation of the electron quadrupling condensate in BaKFeAs at . The state spontaneously breaks time-reversal symmet…
cond-mat.mtrl-sci2025
Elastic Softening in Synthetic Diamonds
Tatsuya Yanagisawa, Ruo Hibino, Hiroyuki Hidaka +6
This study reveals a previously unreported phenomenon: elastic softening of synthetic diamonds at temperatures below 1 K. We present ultrasonic measurements on single-crystalline,…