14 Result(s)
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Article
Carsten Putzke
English
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Article
Open AccessCorrelated order at the tip** point in the kagome metal CsV3Sb5
Spontaneously broken symmetries are at the heart of many phenomena of quantum matter and physics more generally. However, determining the exact symmetries that are broken can be challenging due to imperfection...
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Open AccessDistinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5
The kagome metals AV3Sb5 (A = K, Rb, Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the m...
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Open AccessLayered metals as polarized transparent conductors
The quest to improve transparent conductors balances two key goals: increasing electrical conductivity and increasing optical transparency. To improve both simultaneously is hindered by the physical limitation...
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Open AccessReply to: Low-frequency quantum oscillations in LaRhIn5: Dirac point or nodal line?
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Open AccessSwitchable chiral transport in charge-ordered kagome metal CsV3Sb5
When electric conductors differ from their mirror image, unusual chiral transport coefficients appear that are forbidden in achiral metals, such as a non-linear electric response known as electronic magnetochi...
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Quasi-symmetry-protected topology in a semi-metal
The crystal symmetry of a material dictates the type of topological band structure it may host, and therefore, symmetry is the guiding principle to find topological materials. Here we introduce an alternative ...
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Open AccessDirectional ballistic transport in the two-dimensional metal PdCoO2
In an idealized infinite crystal, the material properties are constrained by the symmetries of the unit cell. The point-group symmetry is broken by the sample shape of any finite crystal, but this is commonly ...
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Open AccessUnidirectional Kondo scattering in layered NbS2
Crystalline defects can modify quantum interactions in solids, causing unintuitive, even favourable, properties such as quantum Hall effect or superconducting vortex pinning. Here we present another example of...
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Open AccessTemperature dependence of quantum oscillations from non-parabolic dispersions
The phase offset of quantum oscillations is commonly used to experimentally diagnose topologically nontrivial Fermi surfaces. This methodology, however, is inconclusive for spin-orbit-coupled metals where π-phase...
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Open AccessEvidence of a coupled electron-phonon liquid in NbGe2
Whereas electron-phonon scattering relaxes the electron’s momentum in metals, a perpetual exchange of momentum between phonons and electrons may conserve total momentum and lead to a coupled electron-phonon li...
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Open AccessSondheimer oscillations as a probe of non-ohmic flow in WP2 crystals
As conductors in electronic applications shrink, microscopic conduction processes lead to strong deviations from Ohm’s law. Depending on the length scales of momentum conserving (lMC) and relaxing (lMR) electron ...
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Reduced Hall carrier density in the overdoped strange metal regime of cuprate superconductors
Efforts to understand the microscopic origin of superconductivity in the cuprates are dependent on knowledge of the normal state. The Hall number in the low-temperature, high-field limit nH(0) has a particular im...
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Open AccessMagnetic electron collimation in three-dimensional semi-metals
While electrons moving perpendicular to a magnetic field are confined to cyclotron orbits, they can move freely parallel to the field. This simple fact leads to complex current flow in clean, low carrier densi...
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Open AccessSuper-geometric electron focusing on the hexagonal Fermi surface of PdCoO2
Geometric electron optics may be implemented in solids when electron transport is ballistic on the length scale of a device. Currently, this is realized mainly in 2D materials characterized by circular Fermi s...
