Identifying the Assembly Configuration and Fluorescence Spectra of Nanoscale Zinc-Tetraphenylporphyrin Aggregates with Scanning Tunneling Microscopy

Scanning tunneling microscopy study of the structure and orbital-mediated tunneling spectra of cobalt(II) phthalocyanine and cobalt(II) tetraphenylporphyrin on au(111): mixed composition films.

Binary thin films of cobalt(II) phthalocyanine (CoPc) and cobalt(II) tetraphenylporphyrin (CoTPP) were prepared at submonolayer coverage on Au(111)/mica substrates byvapor deposition. All sample preparation and analysis were done under an ultrahigh vacuum. Scanning tunneling microscopy (STM) constant-current images of CoPc/CoTPP mixtures showed two close-packed surface structures, with differen...

Multiquantum vortices in superconductors: Electronic and scanning tunneling microscopy spectra

Superconducting quasiparticle excitation spectra are computed for m times quantized flux lines using a self-consistent Bogoliubov–de Gennes approach. We find m discrete branches of bound-state solutions in the spectrum, corresponding to different values of the quasiparticle angular momentum. Owing to the bound states, the scanning tunneling microscopy spectrum of the vortex is predicted to disp...

Local probing and manipulation of molecules and nanoscale contacts with scanning tunneling microscopy

tionaltheorie in Kooperation mit Theoretikern unterstützt.

Microscopy, Scanning Tunneling

Ultrafast Scanning Tunneling Microscopy