9 papers
Ultrasound Evidence for a Low-Temperature Anomaly Inside the Superconducting State of 4Hb-TaS
Yongwei Li, Dmitri V. Efremov, Paul Leask +7
We report low-temperature ultrasound measurements on single crystals of the layered van der Waals superconductor 4Hb-TaS. Specific heat and ac magnetic susceptibility show a sh…
Search for magnetoacoustic quantum oscillations in the insulating phase of YbB
Ryosuke Kurihara, Atsuhiko Miyata, Koji Araki +9
A highly exotic phenomenon in solid-state physics is the observation of magnetic quantum oscillations in insulators. For instance, in the Kondo insulator YbB various groups…
Thermodynamic Evidence of Tetracritical Topology in the - Phase Diagram of UTe for
Michal ValiÅ¡ka, Michal Vališka, Tetiana Haidamak +6
We report ultrasound velocity measurements on an ultraclean UTe single crystal with ~K for , performed up to 18~T and down to 0.33~K. The measurements pro…
Magnetoelastic signatures of the conical state and charge density waves in antiferromagnetic FeGe
L. Prodan, J. Sourd, S. Zherlitsyn +1
Kagome systems host intertwined spin, charge, and lattice degrees of freedom that drive emergent collective states. Here, we identify two distinct energy scales in the noncollinear…
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…
Direct probe of magnetic field effects on phonons by ultrasound propagation in a quasi-two-dimensional honeycomb magnet NaCoTeO
Xiaochen Hong, Maximilian Schiffer, Beat Valentin Schwarze +9
We study the phonon behavior of a Co-based honeycomb frustrated magnet NaCoTeO under magnetic field applied perpendicular to the honeycomb plane. The temperature and fi…