Publications (8)
Ultra-cold neutron simulation framework for the free neutron lifetime experiment SPECT
Julian Auler, Utkarsh Bajpai, Martin Engler +10
The precise determination of the free neutron lifetime is of great significance in modern precision physics. This key observable is linked to the mixing of up and down quarks via t…
An intermediate morphology in the patterning of the crystalline Ge(001) surface induced by ion irradiation
Denise J. Erb, Daniel A. Pearson, Tomáš ŠkereŠ+3
We investigate the morphologies of the Ge(001) surface that are produced by bombardment with a normally incident, broad argon ion beam at sample temperatures above the recrystalliz…
Nano patterns self-aligned to Ga dimer rows on GaAs surfaces
Martin Engler, Tomáš Å kereÅ, Stefan Facsko
Ion beam irradiation of semiconductors is a method to produce regular periodic nanoscale patterns self-organized on wafer scale. At low temperatures, the surface of semiconductors…
Optimization of nuclear polarization in an alkali-noble gas comagnetometer
Emmanuel Klinger, Tianhao Liu, Mikhail Padniuk +6
Self-compensated comagnetometers, employing overlapping samples of spin-polarized alkali and noble gases (for example K-He) are promising sensors for exotic beyond-the-standard…
Strong anisotropy in surface kinetic roughening: analysis and experiments
Edoardo Vivo, Matteo Nicoli, Martin Engler +3
We report an experimental assessment of surface kinetic roughening properties that are anisotropic in space. Working for two specific instances of silicon surfaces irradiated by io…
A neutron trigger detector for pulsed reactor neutron sources
Julian Auler, Dieter Ries, Bernd Ulmann +10
A variety of experiments investigating properties of neutrons can be performed at pulsed reactor neutron sources like the research reactor TRIGA Mainz. A typical problem faced by t…
Search for axion-like dark matter using solid-state nuclear magnetic resonance
Deniz Aybas, Janos Adam, Emmy Blumenthal +22
We report the results of an experimental search for ultralight axion-like dark matter in the mass range 162 neV to 166 neV. The detection scheme of our Cosmic Axion Spin Precession…
Search for Axionlike Dark Matter Using Liquid-State Nuclear Magnetic Resonance
Julian Walter, Olympia Maliaka, Yuzhe Zhang +13
We search for dark matter in the form of axionlike particles (ALPs) in the mass range - by probing their possible couplin…