Recent research highlights at PQM

Scientific Report 2021-2024

Silver-gray sample on grid, adjacent to diagrams showing AgCrSe₂ atomic structure and interactions; arrows indicate bonding forces.

Frustrated Triangular Lattice Magnetism in Delafossite Type Yb- and Cr-based Systems

M. Baenitz, H. Rosner, J. Sichelschmidt, M. Schmidt, U. Burkhardt, B. Schmidt, M. Piva, K. M. Ranjith, S. Wirth, M. Nicklas, Y. Prots, S. Kim and H. Zhang more
Two panels display temperature (T) vs. pressure (p) graphs with resistivity (ρ) indicated by color gradients; top chart covers higher temperature range, bottom shows phase transition with "SC" label for superconductivity.

Hydrostatic and Uniaxial Pressure Tuning of Topological Materials and Unconventional Superconductors

M. Nicklas, C. Geibel, Y.-S. Li, A. P. Mackenzie, M. M. Piva and H. Rosner more
The diagram shows a molecular lattice with blue arrows, a question mark indicating directions, and purple arrows at the edges.

Strain Tuning of Correlated and Frustrated Magnetic Materials

E. Gati, B. Schmidt, H. M. L. Noad and A. P. Mackenzie more
Graph displays Young's modulus in GPa versus strain at 4 K. Inset image shows sample under test with scale bar indicating 1 mm.

Stress-Strain Relation as a Probe of Quantum Materials

H. M. L. Noad, C. W. Hicks and A. P. Mackenzie more
Illustration of quantum waveforms featuring symmetrical overlapping red and blue spheres, symbolizing particle states in a mirrored layout.

Novel States of Matter at Low and Ultra-Low Temperatures

M. Brando, C. Geibel, E. Hassinger, S. Khim, M. König, J. F. Landaeta, A. P. Mackenzie and K. Semeniuk more
Illustration of CeCu2Si2 and CeRh2As2 crystal structures showing atomic positions and layer arrangements.

The Superconductivity of CeRh2As2 and Related Materials

S. Khim, Arushi, M. Brando, E. Hassinger and C. Geibel more
Schematic showing components of a semiconductor device with oxide layers and gates, alongside a microchip image with dimensions.

Gate-Controlling Emergent Physics in Layered Quantum Materials

H. Zhang, D. S. Fartab, J. Guimarães, S. Kim, F. Sun, M. Baenitz, M. Schmidt and B. Schmidt more
Illustration of a layered structure with 3 groups of magnetic field lines; adjacent graph depicts resistance measurements of three distinct samples across different GHz frequencies.

Non-Local Transport in Ultra-Pure Delafossites

A. Mackenzie, G. Baker, M. Moravec, P. McGuinness, E. Zhakina and S. Khim more
The image displays spin polarization in a solid-state material, with spin up and spin down bands marked in red and blue, respectively, alongside a hexagonal Brillouin zone diagram.

Electronic Structures and Magnetism of AgCrCh2 (Ch=S,Se,Te): A Density Functional Theory Study

H. Rosner, S. Kim, Y. Prots, M. Schmidt, J. Sichelschmidt and M. Baenitz   more
Visual representation of ScV6Sn6 atomic structures, indicating atomic positions and structural differences between high and low temperatures.

Orbital Selective Commensurate Modulations of the Local Density of States in ScV6Sn6 Probed by Nuclear Spins

R. Guehne, J. Noky, C. Yi, C. Shekhar, M. G. Vergniory, M. Baenitz and C. Felser more

Scientific Report 2018-2021

Two plots illustrate electron distributions in Sr₂RuO₄. The left shows unstressed conditions, while the right shows effects of 0.5% compression along the x-axis, highlighting changes in electron zones marked as α, β, and γ.

New developments in Sr2RuO4

C.W. Hicks, M. Nicklas, A.P. Mackenzie more
Graph depicting temperature versus pressure, highlighting antiferromagnetic (AFM) and superconducting (SC) phases, with areas for 2D and 3D charge order (CO). Points A, B, C, and D mark transition boundaries.

Exploring competing orders in cuprate superconductors

C.W. Hicks, A.P. Mackenzie more
Phase diagram illustrating CeFeAsO's structural transitions from tetragonal to orthorhombic and superconducting state with increasing pressure, including Kondo screening effects.

Unconventional superconductivity in heavy fermion systems

S. Khim, M. Brando, C. Geibel, E. Hassinger, M. Nicklas, H. Rosner, A.P. Mackenzie more
Diagram illustrating the phase transitions of CeRh2As2 in varying temperatures and magnetic fields. SC1 and SC2 superconducting phases are marked with different symbols.

Field-induced transition within the superconducting state of CeRh2As2

E. Hassinger, S. Khim, M. Brando, C. Geibel, A.P. Mackenzie more
Four images show green and red crystal fragments against a grid pattern.

Cu- and Yb- based planar triangular lattice magnets

M. Baenitz, B. Schmidt, H. Rosner, S. Khim more
Visualization of quantum spin chains using green and purple arrows, indicating spinons. Arrows show alternating spin directions, with spinons disrupting the pattern.

Quantum magnetism in low dimensional spin systems

H. Rosner, M. Brando, M. Baenitz more
Series of graphs depicting ferromagnetic (FM) phase boundaries influenced by temperature, magnetic field, and disorder effects. Each panel represents different conditions.

Ferromagnetic quantum criticality

M. Brando, M. Nicklas, M. Baenitz, C. Geibel more
Image of a microstructured surface labeled with a 25 µm dimension and c-axis orientation.

The causes and consequences of high conductivity in delafossite oxides

V. Sunko, A.P. Mackenzie, S. Khim more
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