English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We address the tunneling conductance and spin inelastic tunnelingspectroscopy of localized paramagnetic moments in a superconductingenvironment, pertaining to recent measurements onFe-octaethylporphyrin-chloride using superconducting scanning tunnelingmicroscopy. We demonstrate that the Cooper pair correlations in the tip andsubstrate generate a finite uniaxial anisotropy field acting on the local spinmoment, and we argue that this field may be a source for the observed changesin the conductance spectrum for decreasing distance between the scanningtunneling tip and the local magnetic moment. We make a side-by-side comparisonbetween the superconductor-superconductor junction andnormal-metal--superconductor junction, and find qualitative agreement betweenthe two setups while quantitative differences become explicit.  When simulating the effects of electron pumping, we obtain additional peaksin the conductance spectrum that can be attributed to excitations betweenhigher-energy spin states. The transverse anisotropy field couples basis statesof the local spin which opens for transitions between spin states that areotherwise forbidden by conservation of angular momentum. Finally, we explorethe influences of temperature, which tend to enable in-gap transitions, and anexternal magnetic field, which enables deeper studies of the spin excitationspectrum. We especially notice the appearance of a low and high excitation peakon each side of the main coherence peak as an imprint of transitions betweenthe Zeeman split ground states.

Theory of spin inelastic tunneling spectroscopy for superconductor-superconductor and superconductor-metal junctions