Øyvind Finnseth

Disentangling bulk and surface states in the electronic structure of PtBi$_2$(0001)

Stefanie Suzanne Brinkman, Xin Liang Tan, Anders Christian Mathisen, Fabian Göhler et autres

Recent reports of surface-localized topological superconductivity in trigonal PtBi$_2$ highlight the importance of understanding its surface electronic structure. We investigate the bulk and surface band structure of PtBi$_2$ using angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations. Through photon-energy- and polarization-dependent measurements, we …

Disentangling bulk and surface states in the electronic structure of PtBi$_2$(0001)

Stefanie Suzanne Brinkman, Xin Liang Tan, Anders Christian Mathisen, Fabian Göhler et autres

Recent reports of surface-localized topological superconductivity in trigonal PtBi$_2$ highlight the importance of understanding its surface electronic structure. We investigate the bulk and surface band structure of PtBi$_2$ using angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations. Through photon-energy- and polarization-dependent measurements, we …

Fermiology and spin polarization of topological surface states in PtBi$_2$

Anders Christian Mathisen, Xin Liang Tan, Stefanie Suzanne Brinkman, Kristian Mæland et autres

Layered PtBi$_2$ is a candidate for topological superconductivity arising in Fermi-arc surface states. Using spin- and angle-resolved photoemission spectroscopy, we demonstrate that the Fermi arcs in PtBi$_2$ are singly degenerate and spin-polarized, which establishes their nontrivial topology and constitutes a necessary condition …

Fermiology and spin polarization of topological surface states in PtBi$_2$

Anders Christian Mathisen, Xin Liang Tan, Stefanie Suzanne Brinkman, Kristian Mæland et autres

Layered PtBi$_2$ is a candidate for topological superconductivity arising in Fermi-arc surface states. Using spin- and angle-resolved photoemission spectroscopy, we demonstrate that the Fermi arcs in PtBi$_2$ are singly degenerate and spin-polarized, which establishes their nontrivial topology and constitutes a necessary condition …

no, de, sk, ar, se (code pays fourni par la source)

Tailoring Emergent Magnetic Moment in La$_{0.7}$Sr$_{0.3}$MnO$_3$-Bi$_2$Te$_3$ Heterostructures via Interfacial Reconstructions

Damian Brzozowskim, Yu Tong Liu, Øyvind Finnseth, Egil Ytterli Tokle et autres

We report emergent magnetic behavior in heterostructures composed of (111)-oriented La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO) and (00$l$)-oriented Bi$_2$Te$_3$ (BT), controlled by interfacial reconstructions. When BT is deposited directly onto LSMO, an intermediate interfacial layer forms between the two materials. Polarized Neutron Reflectometry modeling reveals that …

Tailoring Emergent Magnetic Moment in La$_{0.7}$Sr$_{0.3}$MnO$_3$-Bi$_2$Te$_3$ Heterostructures via Interfacial Reconstructions

Damian Brzozowski, Yu Liu, Øyvind Finnseth, Egil Ytterli Tokle et autres

We report emergent magnetic behavior in heterostructures composed of (111)-oriented La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO) and (00$l$)-oriented Bi$_2$Te$_3$ (BT), controlled by interfacial reconstructions. When BT is deposited directly onto LSMO, an intermediate interfacial layer forms between the two materials. Polarized Neutron Reflectometry modeling reveals that …

no, gb, us (code pays fourni par la source)

Electronic Structure and Resonant Circular Dichroism of La$_{0.7}$Sr$_{0.3}$MnO$_3$ from Soft X-ray Angle-Resolved Photoemission

Øyvind Finnseth, Damian Brzozowski, Anders Christian Mathisen, Stefanie Suzanne Brinkman et autres

Coupling between spin, orbital, charge, and lattice degrees of freedom in transition-metal oxides produces a variety of electronic and magnetic phenomena of importance for future technologies. Here, we explore the electronic band structure of a (111)-oriented La0.7Sr0.3MnO3 thin film through soft X-ray …

Electronic Structure and Resonant Circular Dichroism of La$_{0.7}$Sr$_{0.3}$MnO$_3$ from Soft X-ray Angle-Resolved Photoemission

Øyvind Finnseth, Damian Brzozowski, Anders Christian Mathisen, Stefanie Suzanne Brinkman et autres

Coupling between spin, orbital, charge, and lattice degrees of freedom in transition-metal oxides produces a variety of electronic and magnetic phenomena of importance for future technologies. Here, we explore the electronic band structure of a (111)-oriented La0.7Sr0.3MnO3 thin film through soft X-ray …

Chirality-Driven Orbital Angular Momentum and Circular Dichroism in CoSi

Stefanie Suzanne Brinkman, Xin Tan, Bjørnulf Brekke, Anders Christian Mathisen et autres

Chiral crystals and molecules were recently predicted to form an intriguing platform for unconventional orbital physics. Here, we report the observation of chirality-driven orbital textures in the bulk electronic structure of CoSi, a prototype member of the cubic B20 family of chiral …

no, de, tw (code pays fourni par la source)

Chirality-Driven Orbital Angular Momentum and Circular Dichroism in CoSi

Stefanie Suzanne Brinkman, Xin Tan, Bjørnulf Brekke, Anders Christian Mathisen et autres

Chiral crystals and molecules were recently predicted to form an intriguing platform for unconventional orbital physics. Here, we report the observation of chirality-driven orbital textures in the bulk electronic structure of CoSi, a prototype member of the cubic B20 family of chiral …