activity
19982026
most citedQuartic metal: Spontaneous breaking of time-reversal symmetry due to four-fermion correlations in BaKFeAs

105 citations · 1.2k across the 75 of their papers we have counts for

collaborators

75 papers

cond-mat.supr-con2026

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…

cond-mat.str-el2026

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…

cond-mat.str-el2026

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…

cond-mat.supr-con2026

Thermodynamic Evidence of Tetracritical Topology in the - Phase Diagram of UTe for

Michal Vališka, Tetiana Haidamak, Andrej Cabala +4

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…

cond-mat.supr-con2026

Investigation of CeRhAs order parameters via ultrasound propagation anomalies

S. Galeski, C. Lee, F. Bartl +11

Unconventional superconductors with nearly degenerate pairing states are rare. CeRhAs has recently emerged as one of the few existing multi-phase superconductors. It exhibi…

cond-mat.str-el2026

Magnetoelastic coupling at the field-induced transition in EuAlO

T. Haidamak, G. Bastien, P. Proschek +9

Magnetoelastic coupling plays a crucial role in magnetic-field-induced transitions in anisotropic ferromagnets. Ultrasonic methods are suitable for experimental investigations of t…

cond-mat.str-el2026

Acoustic signatures of the field-induced electronic-topological transitions in YbNiP

E. -O. Eljaouhari, B. V. Schwarze, K. Kliemt +6

We investigated the magnetoelastic properties of an YbNiP single crystal at low temperatures under magnetic fields directed along the crystallographic [001] axis. We report…

cond-mat.str-el2026

Magnetoelastic properties in the high-temperature magnetic phase of the skyrmion compound GdRuSi

J. Sourd, D. A. Mayoh, G. Balakrishnan +3

We investigated the magnetoelastic properties of a GdRuSi single crystal under a magnetic field applied along the crystallographic [001] and [110] directions. We report a s…

cond-mat.str-el2025★ 1 cited

Contrasting magnetic behavior in MnSc_2X_4 (X = S, Se) spinel compounds investigated by magnetoelastic studies

J. Grumbach, J. Sourd, M. Deeb +12

The spinel compounds MnSc_2X_4 are highly frustrated and candidate materials for vortex-like 3q magnetic states, such as skyrmions, with propagation vectors in the [111] plane. Bec…

cond-mat.str-el2025

Large out-of-equilibrium magnetocaloric effect in rare-earth zirconate pyrochlores

O. Benton, Y. Skourski, D. Gorbunov +7

We explore the magnetic properties of NdZrO and PrZrO single crystals subjected to pulsed magnetic fields up to 60 T using magnetization and magnetocaloric-…

cond-mat.str-el2025★ 1 cited

Spontaneous lattice distortion and crystal field effects in HoB4

S. Goswami, D. I. Gorbunov, D. Kriegner +9

The tetraboride HoB4 crystallizes in a tetragonal structure (space group P4/mbm), with the Ho atoms realizing a Shastry-Sutherland lattice. It orders antiferromagnetically at TN1 =…

cond-mat.str-el2025

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…

cond-mat.str-el2025

Spin-strain interactions under hydrostatic pressure in -RuCl

A. Hauspurg, Susmita Singh, T. Yanagisawa +5

We investigate the effects of hydrostatic pressure on -RuCl, a prototypical material for the Kitaev spin model on a honeycomb lattice with a possible spin-liquid ground stat…

cond-mat.other2025★ 20 cited

Ultrasound measurement technique for the single-turn-coil magnets

T. Nomura, A. Hauspurg, D. I. Gorbunov +7

Ultrasound is a powerful means to study numerous phenomena of condensed-matter physics as acoustic waves couple strongly to structural, magnetic, orbital, and charge degrees of fre…

cond-mat.str-el2025

Rotational magnetoelastic interactions in the Dzyaloshinskii-Moriya magnet BaCuGeO

J. Sourd, T. Kotte, P. Wild +3

We report the magnetoelastic properties of a BaCuGeO single crystal at low temperatures under a magnetic field applied along the crystallographic [001] axis. Our result…

cond-mat.str-el2024★ 2 cited

Magnetization process of a quasi-two-dimensional quantum magnet: Two-step symmetry restoration and dimensional reduction

Anneke Reinold, Lucas Berger, Marcin Raczkowski +9

We report on a comprehensive thermodynamic study of a quasi-two-dimensional (quasi-2D) quantum magnet Cu(OH)Br which in the 2D layer can be viewed as strongly coupled alter…

cond-mat.str-el2024★ 2 cited

Magnon-phonon interactions in the spinel compound MnScSe

J. Sourd, Y. Skourski, L. Prodan +4

We investigated the magnetic and magnetoelastic properties of MnScSe single crystals at low temperature under a magnetic field directed along the crystallographic [111] axi…

cond-mat.str-el2024★ 6 cited

Magnetic Phase Diagram of Rouaite, Cu(OH)NO

Aswathi Mannathanath Chakkingal, Anton A. Kulbakov, Justus Grumbach +18

Spinon-magnon mixing was recently reported in botallackite Cu(OH)Br with a uniaxially compressed triangular lattice of Cu quantum spins [Zhang et al., Phys. Rev. Let…

cond-mat.supr-con2024★ 3 cited

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.str-el2024★ 2 cited

Giant quantum oscillations in thermal transport in low-density metals via electron absorption of phonons

B. Bermond, R. Wawrzynczak, S. Zherlitsyn +14

Oscillations of conductance observed in strong magnetic fields are a striking manifestation of the quantum dynamics of charge carriers in solids. The large charge carrier density i…

cond-mat.mtrl-sci2024

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,…

cond-mat.mtrl-sci2023

Anomalous Shubnikov-de Haas effect and observation of the Bloch-Grüneisen temperature in the Dirac semimetal ZrTe5

S. Galeski, K. Araki, O. K. Forslund +29

Appearance of quantum oscillations (QO) in both thermodynamic and transport properties of metals at low temperatures is the most striking experimental consequence of the existence…

cond-mat.str-el2023★ 4 cited

Dramatic elastic response at the critical end point in UTe

Michal Vališka, Tetiana Haidamak, Andrej Cabala +10

The first-order transition line in the \textit{H-T} phase diagram of itinerant electron metamagnets terminates at the critical end point-analogous to the critical point on the gas-…

cond-mat.str-el2023★ 5 cited

Pressure-tuned quantum criticality in the large- antiferromagnet DTN

Kirill Yu. Povarov, David E. Graf, Andreas Hauspurg +11

Strongly correlated spin systems can be driven to quantum critical points via various routes. In particular, gapped quantum antiferromagnets can undergo phase transitions into a ma…