Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- California Institute of TechnologyUS2.6k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Massachusetts Institute of TechnologyUS1.9k papers
- University of FloridaUS1.8k papers
- Carnegie Mellon UniversityUS1.7k papers
- Princeton UniversityUS1.7k papers
- University of RochesterUS1.7k papers
- Purdue University West LafayetteUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of Maryland, College ParkUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- University of California, Santa BarbaraUS1.6k papers
35 papers · 2 filters
A high-energy density antiferroelectric made by interfacial electrostatic engineering
Julia A. Mundy, Colin A. Heikes, Bastien F. Grosso +11
Dielectric capacitors hold a tremendous advantage for energy storage due to their fast charge/discharge times and stability in comparison to batteries and supercapacitors. A key li…
Measurement of Ultrafast Dynamics of Photoexcited Carriers in -GaO by Two-Color Optical Pump-Probe Spectroscopy
Okan Koksal, Nicholas Tanen, Debdeep Jena +2
We report results from ultrafast two-color optical pump-probe spectroscopy on bulk -GaO. A two-photon absorption scheme is used to photoexcite carriers with the pump pul…
Interplay between phonons and anisotropic elasticity drives negative thermal expansion in PbTiO
Ethan T. Ritz, Nicole A. Benedek
We use first-principles theory to show that the ingredients assumed to be essential to the occurrence of negative thermal expansion (NTE) -- rigid unit phonon modes with negative G…
X-ray reflectivity with a twist: quantitative time-resolved X-ray reflectivity using monochromatic synchrotron radiation
Howie Joress, Shane Quinlan Arlington, Timothy P. Weihs +2
We have developed an improved method of time-resolved x-ray reflectivity (XRR) using monochromatic synchrotron radiation. Our method utilizes a polycapillary x-ray optic to create…
Thermodynamics and superconductivity of SSeH
Maximilian Amsler
The compression of SH and its subsequent decomposition to SH, presumably in a cubic Imm structure, has lead to the discovery of conventional superconductivity…
Ternary mixed-anion semiconductors with tunable band gaps from machine-learning and crystal structure prediction
Maximilian Amsler, Logan Ward, Vinay I. Hegde +3
We report the computational investigation of a series of ternary XYZ and XYZ compounds with X={Mg, Ca, Sr, Ba}, Y={P, As, Sb, Bi}, and Z={S, Se, Te}. The compos…
Spin-orbit torques acting upon a perpendicularly-magnetized Py layer
Tian-Yue Chen, Yongxi Ou, Tsung-Yu Tsai +2
We show that Py, a commonly-used soft ferromagnetic material with weak anisotropy, can become perpendicularly-magnetized while depositing on Ta buffer layer with Hf or Zr insertion…
Exceptionally high, strongly temperature dependent, spin Hall conductivity of SrRuO3
Yongxi Ou, Zhe Wang, Celesta S. Chang +7
Spin-orbit torques (SOT) in thin film heterostructures originate from strong spin-orbit interactions (SOI) that, in the bulk, generate a spin current as the result of extrinsic spi…
Spin Seebeck imaging of spin-torque switching in antiferromagnetic Pt/NiO heterostructures
Isaiah Gray, Takahiro Moriyama, Nikhil Sivadas +10
As electrical control of Néel order opens the door to reliable antiferromagnetic spintronic devices, understanding the microscopic mechanisms of antiferromagnetic switching is cruc…
Ferroelastic twin reorientation mechanisms in shape memory alloys elucidated with 3D X-ray microscopy
Ashley N. Bucsek, Darren C. Pagan, L. Casalena +3
Three-dimensional (3D) X-ray diffraction methods were used to analyze the evolution of the load-induced rearrangements of monoclinic twin microstructures within bulk nickel-titaniu…
Irrelevance of magnetic proximity effect to spin-orbit torques in heavy metal/ferromagnet bilayers
L. J. Zhu, D. C. Ralph, R. A. Buhrman
The magnetic proximity effect (MPE) is a well-established magnetic phenomenon that occurs at certain heavy metal (HM)/ferromagnet (FM) interfaces. However, there is still an active…
Searching for Materials with High Refractive Index and Wide Band Gap: A First-Principles High-Throughput Study
Francesco Naccarato, Francesco Ricci, Jin Suntivich +3
Materials combining both a high refractive index and a wide band gap are of great interest for optoelectronic and sensor applications. However, these two properties are typically d…
Carrier Lifetimes and Polaronic Mass Enhancement in the Hybrid Halide Perovskite CHNHPbI from Multiphonon Fröhlich Coupling
Martin Schlipf, Samuel Poncé, Feliciano Giustino
We elucidate the nature of the electron-phonon interaction in the archetypal hybrid perovskite CHNHPbI using ab initio many-body calculations and an exactly solvable mo…
Anisotropic spin-orbit torque generation in epitaxial SrIrO3 by symmetry design
T. Nan, T. J. Anderson, J. Gibbons +13
Spin-orbit coupling (SOC), the interaction between the electron spin and the orbital angular momentum, can unlock rich phenomena at interfaces, in particular interconverting spin a…
Hybrid Halide Perovskites: Fundamental Theory and Materials Design
Marina R. Filip, George Volonakis, Feliciano Giustino
Hybrid organic-inorganic halide perovskites have emerged as a disruptive new class of materials, exhibiting optimum properties for a broad range of optoelectronic applications, mos…
Quasiparticle band structures and Fermi surfaces of bulk and monolayer NbS
Christoph Heil, Martin Schlipf, Feliciano Giustino
In this work we employ the approximation in the framework of the SternheimerGW method to investigate the effects of many-body corrections to the band structures and Fermi surf…
Stacking-Dependent Magnetism in Bilayer CrI
Nikhil Sivadas, Satoshi Okamoto, Xiaodong Xu +2
We report the connection between the stacking order and magnetic properties of bilayer CrI using first-principles calculations. We show that the stacking order defines the magn…
A polarization-induced 2D hole gas in undoped gallium nitride quantum wells
Reet Chaudhuri, Samuel James Bader, Zhen Chen +4
The long-missing polarization-induced two-dimensional hole gas is finally observed in undoped gallium nitride quantum wells. Experimental results provide unambiguous proof that a 2…
Many-body calculations of plasmon and phonon satellites in angle-resolved photoelectron spectra using the cumulant expansion approach
Fabio Caruso, Carla Verdi, Feliciano Giustino
The interaction of electrons with crystal lattice vibrations (phonons) and collective charge-density fluctuations (plasmons) influences profoundly the spectral properties of solids…
Atomic scale analysis of Nb3Sn on Nb prepared by a vapor-diffusion process for superconducting radiofrequency cavity applications
Jaeyel Lee, Sam Posen, Zugang Mao +5
We report an atomic-scale analysis of the microstructure of Nb3Sn coating on Nb prepared by vapor diffusion process for superconducting radiofrequency (SRF) cavity application usin…
Manipulating matter with strong coupling: harvesting triplet excitons in organic exciton microcavities
Daniel Polak, Rahul Jayaprakash, Anastasia Leventis +8
Exciton-polaritons are quasiparticles with mixed photon and exciton character that demonstrate rich quantum phenomena, novel optoelectronic devices and the potential to modify chem…
The Geometric Blueprint of Perovskites
Marina R. Filip, Feliciano Giustino
Perovskite minerals form an essential component of the Earth's mantle, and synthetic crystals are ubiquitous in electronics, photonics, and energy technology. The extraordinary che…
Emergence of hidden phases of methylammonium lead-iodide (CHNHPbI) upon compression
José A. Flores-Livas, Daniele Tomerini, Maximilian Amsler +3
We perform a thorough structural search with the minima hopping method (MHM) to explore low-energy structures of methylammonium lead iodide. By combining the MHM with a forcefield,…
Enhancement in surface mobility and quantum transport of Bi_(2-x)Sb_(x)Te_(3-y)Se_(y) topological insulator by controlling the crystal growth conditions
Kyu-Bum Han, Su Kong Chong, Akira Nagaoka +4
Despite numerous studies on three-dimensional topological insulators (3D TIs), the controlled growth of high quality (bulk-insulating and high mobility) TIs remains a challenging s…