Tatiana A. Webb

Revealing the Empty-State Electronic Structure of Single-Unit-Cell FeSe/SrTiO3

We use scanning tunneling spectroscopy to investigate the filled and empty electronic states of superconducting single-unit-cell FeSe deposited on SrTiO3(001). We map the momentum-space band structure by combining quasiparticle interference imaging with decay length spectroscopy. In addition to quantifying the filled-state bands, we discover a Γ-centered electron pocket 75 meV above the Fermi energy. Our density functional theory calculations show the orbital nature of empty states at Γ and explain how the Se height is a key tuning parameter of their energies, with broad implications for electronic properties.

Bounds on nanoscale nematicity in single-layerFeSe/SrTiO3

We use scanning tunneling microscopy (STM) and quasiparticle interference (QPI) imaging to investigate the low-energy orbital texture of single-layer FeSe/SrTiO

Imaging of Quantum Materials

_3

Dumbbell Defects in FeSe Films: A Scanning Tunneling Microscopy and First-Principles Investigation

. We develop a

Doping-dependence of CDW Order in Bi2201, Measured by Phase-Sensitive STM

T

Bounds on nanoscale nematicity in single-layer FeSe/SrTiO[subscript 3]

-matrix model of multi-orbital QPI to disentangle scattering intensities from Fe

Defects in Thin-Film FeSe/SrTiO

3d_{xz}

_3

and

: STM and DFT Investigations

3d_{yz}

STM investigation of FeSe/STO binding

bands, enabling the use of STM as a nanoscale detection tool of nematicity. By sampling multiple spatial regions of a single-layer FeSe/SrTiO