In Search of Ferroelectricity in Antiferroelectric Lead Zirconate

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Using quantum Monte Carlo simulations and field-theory arguments, we study the fully frustrated transversefield Ising model on the square lattice for the purpose of quantitatively relating two different order parameters to each other. We consider a "primar ...

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Perovskite-based solar cells are currently the most rapidly advancing photovoltaic technology but concerns about their long-term stability are still impeding full-scale commercialization. This thesis provides computational insights into some of the stabili ...

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Heterostructures consisting of SmNiO3 and NdNiO3 alternating layers with additional LaAlO3 spacer layers were grown and fully characterized by means of x-ray diffraction, atomic force microscopy, and scanning transmission electron microscopy. A change in t ...

We have performed electrochemical treatment of the van der Waals antiferromagnetic materials FePS3 and NiPS3 with the ionic liquid EMIM-BF4, achieving significant molecular intercalation. Mass analysis of the intercalated compounds, EMIMx-FePS3 and EMIMx-N ...

The understanding of mixed ionic-electronic conductivity in hybrid perovskites has enabled major advances in the development of optoelectronic devices based on this class of materials. While recent investigations revealed the potential of using dimensional ...

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Materials with field-tunable polarization are of broad interest to condensed matter sciences and solid-state device technologies. Here, using hydrogen (H) donor doping, we modify the room temperature metallic phase of a perovskite nickelate NdNiO3 into an ...

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Which phenomenon slows down the dynamics in supercooled liquids and turns them into glasses is a long-standing question of condensed matter. Most popular theories posit that as the temperature decreases, many events must occur in a coordinated fashion on a ...

Electron-cyclotron waves are a tool commonly used in tokamaks, in particular to drive current. Their ability to drive current in a very localized manner renders them an optimal tool for MHD mode mitigation. However, such applications require high accuracy ...

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We investigate the magnetic structure and magnetoelectric(ME) effect in the high -field phase of the antiferromagnet LiFePO 4 above the critical field of 31 T. A neutron diffraction study in pulsed magnetic fields reveals the propagation vector to be q = 0 ...

Hybrid methylammonium (MA) lead halide perovskites have emerged as materials exhibiting excellent photovoltaic performance related to their rich structural and dynamic properties. Here, we use multifrequency (X-, Q-, and W-band) electron paramagnetic reson ...

In Search of Ferroelectricity in Antiferroelectric Lead Zirconate

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Engineering Symmetry Breaking Interfaces by Nanoscale Structural-Energetics in Orthorhombic Perovskite Thin Films

Primary and secondary order parameters in the fully frustrated transverse-field Ising model on the square lattice

Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets

Frustrated magnets in the limit of infinite dimensions: Dynamics and disorder-free glass transition

Electronic structure and lattice dynamics of 1T-VSe2:Origin of the three-dimensional charge density wave

How Reproducible is the Synthesis of Zr-Porphyrin Metal-Organic Frameworks? An Interlaboratory Study

Beyond the coupled distortion model: structural analysis of the single domain cupredoxin AcoP, a green mononuclear copper centre with original features

Computational Studies on the Stability of Organic-Inorganic Hybrid Halide Lead Perovskites

Towards Scalable Electronics: Synthetic 2D Materials for Large-Area 2D Circuit Integration

Structural study of nickelate based heterostructures

Molecular intercalation in the van der Waals antiferromagnets FePS3 and NiPS3

Mixed ionic-electronic conduction in Ruddlesden-Popper and Dion-Jacobson layered hybrid perovskites with aromatic organic spacers

A continuous-wave and pulsed X-band electron spin resonance spectrometer operating in ultra-high vacuum for the study of low dimensional spin ensembles

Hydrogen-induced tunable remanent polarization in a perovskite nickelate

Magnetism of Single Surface Adsorbed Atoms Studied with Radio-Frequency STM

Local vs. cooperative: Unraveling glass transition mechanisms with SEER

Impact of microwave beam scattering by density fluctuations on the electron-cyclotron power deposition profile in tokamaks

Organic matters, but inorganic matters too: column examination of elevated mercury sorption on low organic matter aquifer material using concentrations and stable isotope ratios

Magnetic structure and magnetoelectric properties of the spin-flop phase in LiFePO4

Probing structural and dynamic properties of MAPbCl3 hybrid perovskite using Mn2+ EPR