101 citations · 495 across the 28 of their papers we have counts for
6 papers · 1 filter
Adsorption-controlled Growth of Homoepitaxial c-plane Sapphire Films
Lena N. Majer, Tolga Acartürk, Peter A. van Aken +13
Sapphire is a technologically highly relevant material, but it poses many challenges to performing epitaxial thin-film deposition. We have identified and applied the conditions for…
alpha-Ta Films on c-plane Sapphire with Enhanced Microstructure
Lena N. Majer, Sander Smink, Wolfgang Braun +7
Superconducting films of alpha-Ta are promising candidates for the fabrication of advanced superconducting qubits. However, alpha-Ta films suffer from many growth-induced structura…
Unraveling nano-scale effects of topotactic reduction in LaNiO crystals
Yu-Mi Wu, Pascal Puphal, Masahiko Isobe +4
Infinite-layer nickelates stand as a promising frontier in the exploration of unconventional superconductivity. Their synthesis through topotactic oxygen reduction from the parent…
Ultrafast phonon-mediated dephasing of color centers in hexagonal boron nitride probed by electron beams
Masoud Taleb, Paul Bittorf, Mximilian Black +7
Defect centers in hexagonal boron nitride have been extensively studied as room temperature single photon sources. The electronic structure of these defects exhibits strong couplin…
Interface Design Beyond Epitaxy: Oxide Heterostructures Comprising Symmetry-forbidden Interfaces
Hongguang Wang, Varun Harbola, Yu-Jung Wu +2
Epitaxial growth of thin-film heterostructures is generally considered the most successful procedure to obtain interfaces of excellent structural and electronic quality between thr…
Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO
S. Hayashida, V. Sundaramurthy, P. Puphal +10
Recent x-ray spectroscopic studies have revealed spin excitations and charge density waves in thin films of infinite-layer (IL) nickelates. However, clarifying whether the origin o…