Daniel E. Bürgler
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View article: THz generation by exchange-coupled spintronic emitters
THz generation by exchange-coupled spintronic emitters Open
The mechanism of THz generation in ferromagnet/metal (F/M) bilayers has been typically ascribed to the inverse spin Hall effect (ISHE). Here, we fabricated Pt/Fe/Cr/Fe/Pt multilayers containing two back-to-back spintronic THz emitters sepa…
View article: Spin‐Selective Electron Transport Through Single Chiral Molecules
Spin‐Selective Electron Transport Through Single Chiral Molecules Open
The interplay between chirality and magnetism has been a source of fascination among scientists for over a century. In recent years, chirality-induced spin selectivity (CISS) has attracted renewed interest. It has been observed that electr…
View article: Laser-triggered terahertz radiation from interlayer exchange-coupled spintronic emitters
Laser-triggered terahertz radiation from interlayer exchange-coupled spintronic emitters Open
Intensity of THz transients triggered by laser excitation in NM/FM/NM/FM/NM multilayers (FM - ferromagnet, NM - normal metal) can be tuned by the interlayer exchange coupling between the two FM layers. We ascribe this tunability to the con…
View article: Enantioselective Adsorption on Magnetic Surfaces
Enantioselective Adsorption on Magnetic Surfaces Open
From the beginning of molecular theory, the interplay of chirality and magnetism has intrigued scientists. There is still the question if enantiospecific adsorption of chiral molecules occurs on magnetic surfaces. Enantiomer discrimination…
View article: Spin‐Selective Electron Transport Through Single Chiral Molecules
Spin‐Selective Electron Transport Through Single Chiral Molecules Open
The interplay between chirality and magnetism is a source of fascination among scientists for over a century. In recent years, chirality‐induced spin selectivity (CISS) has attracted renewed interest. It is observed that electron transport…
View article: Noise-dependent bias in quantitative STEM-EMCD experiments revealed by bootstrapping
Noise-dependent bias in quantitative STEM-EMCD experiments revealed by bootstrapping Open
Electron magnetic circular dichroism (EMCD) is a powerful technique for estimating element-specific magnetic moments of materials on nanoscale with the potential to reach atomic resolution in transmission electron microscopes. However, the…
View article: Determination of Thermal Damage Threshold in THz Photomixers Using Raman Spectroscopy
Determination of Thermal Damage Threshold in THz Photomixers Using Raman Spectroscopy Open
The increase of device lifetime and reliability of THz photomixers will play an essential role in their possible future application. Therefore, their optimal work conditions/operation range, i.e., the maximal incident optical power should …
View article: Noise-dependent bias in quantitative STEM-EMCD experiments revealed by bootstrapping
Noise-dependent bias in quantitative STEM-EMCD experiments revealed by bootstrapping Open
Electron magnetic circular dichroism (EMCD) is a powerful technique for estimating element-specific magnetic moments of materials on nanoscale with the potential to reach atomic resolution in transmission electron microscopes. However, the…
View article: Magnetization enhanced the multiple magnetic domain-dominated resonance modes in stripe domain films
Magnetization enhanced the multiple magnetic domain-dominated resonance modes in stripe domain films Open
FeCoHf films with different Hf contents and thicknesses were deposited by composition-gradient sputtering. The results showed that the stripe domain (SD) structure emerges when the film thickness exceeds a critical thickness (220–330 nm), …
View article: Enantioselective adsorption on magnetic surfaces
Enantioselective adsorption on magnetic surfaces Open
From the beginning of molecular theory, the interplay of chirality and magnetism has intrigued scientists. There is still the question if enantiospecific adsorption of chiral molecules occurs on magnetic surfaces. Enantiomer discrimination…
View article: Transient THz Emission and Effective Mass Determination in Highly Resistive GaAs Crystals Excited by Femtosecond Optical Pulses
Transient THz Emission and Effective Mass Determination in Highly Resistive GaAs Crystals Excited by Femtosecond Optical Pulses Open
We present comprehensive studies on the emission of broadband, free-space THz transients from several highly resistive GaAs samples excited by femtosecond optical pulses. Our test samples are characterized by different degrees of disorder,…
View article: Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations
Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations Open
We present a device driving testing platform based on vertically integrated nano light emitting diodes (nano-LEDs). The nano-LEDs with a peak wavelength emission centered at ∼ 445 nm were arranged in arrays and conditioned using a laser-mi…
View article: Deposition of Chiral Heptahelicene Molecules on Ferromagnetic Co and Fe Thin-Film Substrates
Deposition of Chiral Heptahelicene Molecules on Ferromagnetic Co and Fe Thin-Film Substrates Open
The discovery of chirality-induced spin selectivity (CISS), resulting from an interaction between the electron spin and handedness of chiral molecules, has sparked interest in surface-adsorbed chiral molecules due to potential applications…
View article: Scaling and Confinement in Ultrathin Chalcogenide Films as Exemplified by GeTe
Scaling and Confinement in Ultrathin Chalcogenide Films as Exemplified by GeTe Open
Chalcogenides such as GeTe, PbTe, Sb 2 Te 3 , and Bi 2 Se 3 are characterized by an unconventional combination of properties enabling a plethora of applications ranging from thermo‐electrics to phase change materials, topological insulator…
View article: Laser-driven resonant magnetic soft-x-ray scattering for probing ultrafast antiferromagnetic and structural dynamics
Laser-driven resonant magnetic soft-x-ray scattering for probing ultrafast antiferromagnetic and structural dynamics Open
Time-resolved resonant magnetic scattering in the soft-x-ray range is a powerful tool for accessing the spatially resolved and element-specific spin dynamics in magnetic materials. So far, the application of this photon-demanding technique…
View article: Multistate current-induced magnetization switching in Au/Fe/MgO(001) epitaxial heterostructures
Multistate current-induced magnetization switching in Au/Fe/MgO(001) epitaxial heterostructures Open
Magnetization switching using in-plane charge current recently has been widely investigated in heavy metal/ferromagnet bilayers with the switching mechanism usually attributed to the action of the spin-orbit coupling. Here we study in-plan…
View article: Curvature-mediated spin textures in magnetic multi-layered nanotubes
Curvature-mediated spin textures in magnetic multi-layered nanotubes Open
The scientific and technological exploration of artificially designed three-dimensional magnetic nanostructures opens the path to exciting novel physical phenomena, originating from the increased complexity in spin textures, topology, and …
View article: Cyclophane with eclipsed pyrene units enables construction of spin interfaces with chemical accuracy
Cyclophane with eclipsed pyrene units enables construction of spin interfaces with chemical accuracy Open
A chemical strategy for the bottom-up construction of 3D spin interfaces is presented. Scanning tunnelling microscopy reveals distinct electronic features of a cyclophane with precisely designed pi-stacking on ferromagnetic Co(111) nanoisl…
View article: Direct measurement of anisotropic conductivity in a nanolaminated (Mn0.5Cr0.5)2GaC thin film
Direct measurement of anisotropic conductivity in a nanolaminated (Mn0.5Cr0.5)2GaC thin film Open
The direct and parameter-free measurement of anisotropic electrical resistivity of a magnetic Mn+1AXn (MAX) phase film is presented. A multitip scanning tunneling microscope is used to carry out 4-probe transport measurements with variable…
View article: Single-pass STEM-EMCD on a zone axis using a patterned aperture: progress in experimental and data treatment methods
Single-pass STEM-EMCD on a zone axis using a patterned aperture: progress in experimental and data treatment methods Open
Measuring magnetic moments in ferromagnetic materials with atomic column resolution is theoretically possible using the electron magnetic circular dichroism (EMCD) technique in a (scanning) transmission electron microscope ((S)TEM). Howeve…
View article: Single-pass STEM-EMCD on a zone axis using apatterned aperture: Data and methodology
Single-pass STEM-EMCD on a zone axis using apatterned aperture: Data and methodology Open
Raw data and code accompanying the paper "Experimental progress towards single-pass STEM-EMCD on a zone axis using a patterned aperture"
View article: Single-pass STEM-EMCD on a zone axis using apatterned aperture: Data and methodology
Single-pass STEM-EMCD on a zone axis using apatterned aperture: Data and methodology Open
Raw data and code accompanying the paper "Experimental progress towards single-pass STEM-EMCD on a zone axis using a patterned aperture"