A5038666123- Advanced Condensed Matter Physics
- Topological Materials and Phenomena
- Physics of Superconductivity and Magnetism
- 2D Materials and Applications
- Magnetic properties of thin films
- Magnetic and transport properties of perovskites and related materials
- MXene and MAX Phase Materials
- Iron-based superconductors research
- Algebraic structures and combinatorial models
- Rare-earth and actinide compounds
- Electronic and Structural Properties of Oxides
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Thermoelectric Materials and Devices
- Heusler alloys: electronic and magnetic properties
Leibniz Institute for Solid State and Materials Research
2022-2025
TU Dresden
2025
University of Genoa
2025
Abstract The noncentrosymmetric ferromagnetic Weyl semimetal CeAlSi with simultaneous space-inversion and time-reversal symmetry breaking provides a unique platform for exploring novel topological states. Here, by employing multiple experimental techniques, we demonstrate that ferromagnetism pressure can serve as efficient parameters to tune the positions of nodes in CeAlSi. At ambient pressure, magnetism-facilitated anomalous Hall/Nernst effect (AHE/ANE) is uncovered. Angle-resolved...
The spin-1/2 kagom\'{e} Heisenberg antiferromagnet is generally accepted as one of the most promising two-dimensional models to realize a quantum spin liquid state. Previous experimental efforts were almost exclusively on only archetypal material, herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$, which unfortunately suffers from notorious orphan spins problem caused by magnetic disorders. Here we turn YCu$_3$(OH)$_{6.5}$Br$_{2.5}$, recently recognized another host globally undistorted Cu$^{2+}$...
Layered van der Waals tellurides reveal topologically nontrivial properties that give rise to unconventional magneto-transport phenomena. Additionally, their semimetallic character with high mobility makes them promising candidates for large magneto-thermoelectric effects. Remarkable studies on the very and Nernst effect in <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:msub><a:mi>WTe</a:mi><a:mn>2</a:mn></a:msub></a:math> have been reported, raising questions about whether this...
Quantum spin liquid (QSL), a state characterized by exotic low energy fractionalized excitations and statistics, is still elusive experimentally may be gauged via indirect experimental signatures. A remnant of the QSL phase reflect in dynamics as well quanta lattice vibrations, i.e., phonons, strong coupling phonons with underlying excitations. Inelastic light scattering (Raman) studies on ${\mathrm{V}}_{1--x}\mathrm{P}{\mathrm{S}}_{3}$ single crystals evidence fractionalization into...
Layered semimetallic van der Waals material $\mathrm{Ti}{\mathrm{Se}}_{2}$ has attracted a lot of attention because interplay charge density wave (CDW) state and superconductivity. Its sister compound ${\mathrm{TiS}}_{2}$, being isovalent to having the same crystal structure, shows semiconducting behavior. The natural question rises---what happens at transition point in $\mathrm{Ti}{\mathrm{Se}}_{2\ensuremath{-}x}{\mathrm{S}}_{x}$, which is expected for x close one. Here we report growth...
Nematicity in heavily hole-doped iron pnictide superconductors remains controversial. Sizeable nematic fluctuations and even orders far from magnetic instability were declared RbFe 2 As its sister compounds. Here, we report a systematic elastoresistance study of series isovalent- electron-doped KFe crystals. We found divergent on cooling for all the crystals along their [110] direction. The amplitude elastoresistivity diverges if K is substituted with larger ions or system driven toward...
The spin-1/2 kagomé Heisenberg antiferromagnet is generally accepted as one of the most promising two-dimensional models to realize a quantum spin liquid state. Previous experimental efforts were almost exclusively on only archetypal material, herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$, which unfortunately suffers from notorious orphan spins problem caused by magnetic disorders. Here we turn YCu$_3$(OH)$_{6.5}$Br$_{2.5}$, recently recognized another host globally undistorted Cu$^{2+}$ lattice...
The noncentrosymmetric ferromagnetic Weyl semimetal CeAlSi with simultaneous space-inversion (SI) and time-reversal (TR) symmetry breaking provides a unique platform for the exploration of novel topological states. Here, by employing electrical thermoelectrical transport, angle-resolved photoemission spectroscopy (ARPES), high-pressure techniques, band calculations, we demonstrate that magnetism pressure can serve as efficient parameters to tune positions nodes in CeAlSi. At ambient...
Quantum spin liquid (QSL), a state characterized by exotic low energy fractionalized excitations and statistics is still elusive experimentally may be gauged via indirect experimental signatures. Remnant of QSL phase reflect in the dynamics as well quanta lattice vibrations, i.e., phonons, strong coupling phonons with underlying Majorana fermions. Inelastic light scattering (Raman) studies on V1-xPS3 single crystals evidences fractionalization into fermions deep paramagnetic reflected...