Explanipedia

Layer-selective spin-orbit coupling and strong correlation in bilayer graphene Open

Α. Seiler, Yaroslav Zhumagulov, Chiho Yoon, David Urbaniak, Fabian R. Geisenhof , et al. · 2025

Spin-orbit coupling (SOC) and electron-electron interaction can mutually influence each other and give rise to a plethora of intriguing phenomena in condensed matter systems. In pristine bilayer graphene (BLG), which has weak SOC, intrinsi…

Layer-selective spin-orbit coupling and strong correlation in bilayer graphene Open

Α. Seiler, Yaroslav Zhumagulov, Klaus Zollner, Chiho Yoon, David Urbaniak , et al. · 2024

Spin-orbit coupling (SOC) and electron-electron interaction can mutually influence each other and give rise to a plethora of intriguing phenomena in condensed matter systems. In pristine bilayer graphene, which has weak SOC, intrinsic Lifs…

Ferroelectric and spontaneous quantum Hall states in intrinsic rhombohedral trilayer graphene Open

Felix Winterer, Fabian R. Geisenhof, Noelia Fernandez, Α. Seiler, Fan Zhang , et al. · 2024

Non-trivial interacting phases can emerge in elementary materials. As a prime example, continuing advances in device quality have facilitated the observation of a variety of spontaneously ordered quantum states in bilayer graphene. Its nat…

Fast Twist Angle Mapping of Bilayer Graphene Using Spectroscopic Ellipsometric Contrast Microscopy Open

Teja Potočnik, Oliver J. Burton, Marcel Reutzel, David R. Schmitt, Jan Philipp Bange , et al. · 2023

Twisted bilayer graphene provides an ideal solid-state model to explore correlated material properties and opportunities for a variety of optoelectronic applications, but reliable, fast characterization of the twist angle remains a challen…

Ferroelectric and anomalous quantum Hall states in bare rhombohedral trilayer graphene Open

Felix Winterer, Fabian R. Geisenhof, Noelia Fernandez, Α. Seiler, Fan Zhang , et al. · 2023

Nontrivial interacting phases can emerge in elementary materials. As a prime example, continuing advances in device quality have facilitated the observation of a variety of spontaneous quantum Hall-like states, a cascade of Stoner-like mag…

Impact of Electric Field Disorder on Broken-Symmetry States in Ultraclean Bilayer Graphene Open

Fabian R. Geisenhof, Felix Winterer, Α. Seiler, Jakob Lenz, Fan Zhang , et al. · 2022

Bilayer graphene (BLG) has multiple internal degrees of freedom and a constant density of states down to the charge neutrality point when trigonal warping is ignored. Consequently, it is susceptible to various competing ground states. Howe…

Quantum cascade of correlated phases in trigonally warped bilayer graphene Open

Α. Seiler, Fabian R. Geisenhof, Felix Winterer, Kenji Watanabe, Takashi Taniguchi , et al. · 2022

Interplay between topological valley and quantum Hall edge transport Open

Fabian R. Geisenhof, Felix Winterer, Α. Seiler, Jakob Lenz, Ivar Martin , et al. · 2022

Spontaneous Gully-Polarized Quantum Hall States in ABA Trilayer Graphene Open

Felix Winterer, Α. Seiler, Areg Ghazaryan, Fabian R. Geisenhof, Kenji Watanabe , et al. · 2022

Bernal-stacked multilayer graphene is a versatile platform to explore quantum transport phenomena and interaction physics due to its exceptional tunability via electrostatic gating. For instance, upon applying a perpendicular electric fiel…

Rhombohedral trilayer graphene is more stable than its Bernal counterpart Open

Raúl Guerrero‐Avilés, M. Pelc, Fabian R. Geisenhof, R. Thomas Weitz, A. Ayuela · 2022

Our stability study on the stackings in trilayer graphene finds that the rhombohedral one turns out to be favorable. Furthermore, lattice distortions can change the relative stability betwen the Bernal and rhombohedral stacking.

Superconductivity and other phases in graphene multilayers, without twists Open

Haoxin Zhou, Yu Saito, Liam Cohen, William Huynh, Caitlin Patterson , et al. · 2021

1. Isospin magnetism and spin-triplet superconductivity in Bernal bilayer graphene Authors: Haoxin Zhou, Yu Saito, Liam Cohen, William Huynh, Caitlin L. Patterson, Fangyuan Yang, Takashi Taniguchi, Kenji Watanabe, and Andrea F. Young arXiv…

Quantum cascade of new correlated phases in trigonally warped bilayer graphene Open

Α. Seiler, Fabian R. Geisenhof, Felix Winterer, Kenji Watanabe, Takashi Taniguchi , et al. · 2021

Divergent density of states offers the unique opportunity to explore a wide variety of correlated electron physics. In the thinnest limit, this has been predicted and verified in the ultra-flat bands of magic-angle twisted bilayer graphene…

Interplay between topological protected valley and quantum Hall edge transport Open

Fabian R. Geisenhof, Felix Winterer, Α. Seiler, Jakob Lenz, Ivar Martin , et al. · 2021

An established way of realizing topologically protected states in a two-dimensional electron gas is by applying a perpendicular magnetic field thus creating quantum Hall edge channels. In electrostatically gapped bilayer graphene intriguin…

Relative Stability of Bernal and Rhombohedral Stackings in Trilayer\n Graphene under Distortions Open

Raúl Guerrero‐Avilés, M. Pelc, Fabian R. Geisenhof, R. Thomas Weitz, A. Ayuela · 2021

Stackings in graphene have a pivotal role in properties to be discussed in\nthe future, as seen in the recently found superconductivity of twisted bilayer\ngraphene. Beyond bilayer graphene, the stacking order of multilayer graphene\ncan b…

Relative Stability of Bernal and Rhombohedral Stackings in Trilayer Graphene under Distortions Open

Raúl Guerrero‐Avilés, M. Pelc, Fabian R. Geisenhof, Thomas Weitz, A. Ayuela · 2021

Stackings in graphene have a pivotal role in properties to be discussed in the future, as seen in the recently found superconductivity of twisted bilayer graphene. Beyond bilayer graphene, the stacking order of multilayer graphene can be r…

Tunable quantum anomalous Hall octet driven by orbital magnetism in bilayer graphene Open

Fabian R. Geisenhof, Felix Winterer, Α. Seiler, Jakob Lenz, Tianyi Xu , et al. · 2021

The quantum anomalous Hall (QAH) effect - a macroscopic manifestation of chiral band topology at zero magnetic field - has only been experimentally realized by magnetic doping of topological insulators (1 - 3) and delicate design of Moire …

Synthesis of large-area rhombohedral few-layer graphene by chemical vapor deposition on copper Open

Chamseddine Bouhafs, Sergio Pezzini, Fabian R. Geisenhof, Neeraj Mishra, Vaidotas Mišeikis , et al. · 2021

Rhombohedral-stacked few-layer graphene (FLG) has been receiving an\never-increasing attention owing to its peculiar electronic properties that\ncould lead to enticing phenomena such as superconductivity and magnetic\nordering. Up to now, …

Locally-triggered hydrophobic collapse induces global interface self-cleaning in van-der-Waals heterostructures at room-temperature Open

Stefan Wakolbinger, Fabian R. Geisenhof, Felix Winterer, Samuel Palmer, Juri G. Crimmann , et al. · 2020

Mutual relative orientation and well defined, uncontaminated interfaces are the key to obtain van-der-Waals heterostacks with defined properties. Even though the van-der-Waals forces are known to promote the ‘self-cleaning’ of interfaces, …

Vertical, electrolyte-gated organic transistors show continuous operation in the MA cm−2 regime and artificial synaptic behaviour Open

Jakob Lenz, Fabio Giudice, Fabian R. Geisenhof, Felix Winterer, R. Thomas Weitz · 2019

Fabian R. Geisenhof YOU? Author Swipe