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Local stiffness and work function variations of hexagonal boron nitride on Cu(111)

Klaus Kern, Markus Ternes, Abhishek Grewal

Combined scanning tunnelling and atomic force microscopy using a qPlus sensor enables the measurement of electronic and mechanic properties of two-dimensional materials at the nanoscale. In this work, we study hexagonal boron nitride (h-BN), an atomically ...

BEILSTEIN-INSTITUT2021

Sensing the Spin of an Individual Ce Adatom

Wolf-Dieter Schneider, Markus Ternes

The magnetic moment of rare earth elements originates from electrons in the partially filled 4f orbitals. Accessing this moment electrically by scanning tunneling spectroscopy is hampered by shielding of outerlying orbitals. Here, we show that we can detec ...

AMER PHYSICAL SOC2020

Correlation-driven transport asymmetries through coupled spins in a tunnel junction

Klaus Kern, Markus Ternes

Spin-spin correlations can be the driving force that favours certain ground states and are key in numerous models that describe the behaviour of strongly correlated materials. While the sum of collective correlations usually lead to a macroscopically measu ...

Nature Publishing Group2017

Strong paramagnon scattering in single atom Pd contacts

Klaus Kern, Markus Ternes, Uta Schlickum, Peter Wahl, Ivan Pentegov, Verena Katharina Schendel

Among all transition metals, palladium (Pd) has the highest density of states at the Fermi energy at low temperatures yet does not fulfill the Stoner criterion for ferromagnetism. However, close proximity to magnetism renders it a nearly ferromagnetic meta ...

Amer Physical Soc2017

Potential energy-driven spin manipulation via a controllable hydrogen ligand

Klaus Kern, Markus Ternes

Spin-bearing molecules can be stabilized on surfaces and in junctions with desirable properties, such as a net spin that can be adjusted by external stimuli. Using scanning probes, initial and final spin states can be deduced from topographic or spectrosco ...

Amer Assoc Advancement Science2017

A molecular quantum spin network controlled by a single qubit

Klaus Kern, Markus Ternes

Scalable quantum technologies require an unprecedented combination of precision and complexity for designing stable structures of well-controllable quantum systems on the nanoscale. It is a challenging task to find a suitable elementary building block, of ...

Amer Assoc Advancement Science2017

Mass Spectrometry as a Preparative Tool for the Surface Science of Large Molecules

Klaus Kern, Markus Ternes, Stephan Rauschenbach

Measuring and understanding the complexity that arises when nanostructures interact with their environment are one of the major current challenges of nanoscale science and technology. High-resolution microscopy methods such as scanning probe microscopy hav ...

Annual Reviews2016

Lateral and Vertical Stiffness of the Epitaxial h-BN Monolayer on Rh(111)

Klaus Kern, Markus Ternes

The response to strain in covalently bound single layers has a large impact on the growth and properties. We investigate the quasi-two-dimensional hexagonal boron nitride on Rh(111), which is interesting due to its high intrinsic corrugation. We use combin ...

Amer Chemical Soc2014

Markus Ternes

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