Paul F. Henry
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View article: Intrinsic disorder in the candidate quantum spin ice Pr$_2$Zr$_2$O$_7$
Intrinsic disorder in the candidate quantum spin ice Pr$_2$Zr$_2$O$_7$ Open
Quantum spin liquids with long-range entanglement are of great interest for applications in quantum technology. The quantum spin ice Pr$_2$Zr$_2$O$_7$ is a promising example, where it is believed that structural disorder plays a key role i…
View article: Metastable hydrate of sodium chloride: A new mineralogical indicator of rapid freezing of brines at icy worlds
Metastable hydrate of sodium chloride: A new mineralogical indicator of rapid freezing of brines at icy worlds Open
BackgroundSodium chloride (NaCl), the most common salt on Earth, has been detected at several icy worlds that could be habitable in the present day, including Europa [1], Enceladus [2], Ganymede [3] and Ceres [4], providing evidence that s…
View article: Probing dynamic oxygen exchange for hydrogen production with operando neutron diffraction
Probing dynamic oxygen exchange for hydrogen production with operando neutron diffraction Open
A chemical looping process exploiting the variable oxygen content of ABO 3− δ perovskite materials can achieve super-equilibrium conversions of societally important reactions such as the water–gas shift reaction (CO + H 2 O ⇋ CO 2 + H 2 ).…
View article: Metastable Dihydrate of Sodium Chloride at Ambient Pressure
Metastable Dihydrate of Sodium Chloride at Ambient Pressure Open
Sodium chloride (NaCl) plays an important role in geochemistry, biology, industry, and food production, and it is among the most common salts in the solar system. Here, we report the discovery of a metastable NaCl dihydrate formed through …
View article: Impact of Cations and Framework on Trapdoor Behavior: A Study of Dynamic and In Situ Gas Analysis
Impact of Cations and Framework on Trapdoor Behavior: A Study of Dynamic and In Situ Gas Analysis Open
Due to their distinct and tailorable internal cavity structures, zeolites serve as promising materials for efficient and specific gas separations such as the separation of /CO2 from N2. A subset of zeolite materials exhibits trapdoor behav…
View article: Phase Stability and Magnetic Properties of Compositionally Complex <i>n</i> = 2 Ruddlesden–Popper Perovskites
Phase Stability and Magnetic Properties of Compositionally Complex <i>n</i> = 2 Ruddlesden–Popper Perovskites Open
Four new compositionally complex perovskites with multiple (four or more) cations on the B site of the perovskites have been studied. The materials have the general formula La0.5Sr2.5(M)2O7-δ (M = Ti, Mn, Fe, Co, and Ni) and have been synt…
View article: Preliminary Study for the Development of an Automatic Evaluation Tool of the Idiopathic Scoliosis Based on a 3D Point Cloud Captured by a Depth Camera
Preliminary Study for the Development of an Automatic Evaluation Tool of the Idiopathic Scoliosis Based on a 3D Point Cloud Captured by a Depth Camera Open
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View article: Direct Observation of Size-Dependent Phase Transition in Methylammonium Lead Bromide Perovskite Microcrystals and Nanocrystals
Direct Observation of Size-Dependent Phase Transition in Methylammonium Lead Bromide Perovskite Microcrystals and Nanocrystals Open
Methylammonium (MA) lead halide perovskites have been widely studied as active materials for advanced optoelectronics. As crystalline semiconductor materials, their properties are strongly affected by their crystal structure. Depending on …
View article: Phase transitions and optical properties of the trigonal perovskite (CH<sub>3</sub>NH<sub>3</sub>)<sub>2</sub>TeCl<sub>6</sub>
Phase transitions and optical properties of the trigonal perovskite (CH<sub>3</sub>NH<sub>3</sub>)<sub>2</sub>TeCl<sub>6</sub> Open
Changes in the motion of the methylammonium cation and octahedral rotation are identified in MA 2 TeCl 6 undergoing temperature-induced phase transitions.
View article: Spin dynamics of the director state in frustrated hyperkagome systems
Spin dynamics of the director state in frustrated hyperkagome systems Open
We present an experimental study of the magnetic structure and dynamics of two frustrated hyperkagome compounds, Gd3Ga5O12 and Gd3Al5O12. It has previously been shown that Gd3Ga5O12 exhibits long-range correlations of multipolar directors …
View article: Decoupling Lattice and Magnetic Instabilities in Frustrated CuMnO<sub>2</sub>
Decoupling Lattice and Magnetic Instabilities in Frustrated CuMnO<sub>2</sub> Open
The AMnO2 delafossites (A = Na, Cu) are model frustrated antiferromagnets, with triangular layers of Mn3+ spins. At low temperatures (TN = 65 K), a C2/m → P1̅ transition is found in CuMnO2, which breaks frustration and establishes magnetic …
View article: Elucidating the Effects of the Composition on Hydrogen Sorption in TiVZrNbHf-Based High-Entropy Alloys
Elucidating the Effects of the Composition on Hydrogen Sorption in TiVZrNbHf-Based High-Entropy Alloys Open
A number of high-entropy alloys (HEAs) in the TiVZrNbHf system have been synthesized by arc melting and systematically evaluated for their hydrogen sorption characteristics. A total of 21 alloys with varying elemental compositions were inv…
View article: Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis
Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis Open
Neutron diffraction is one of the best methods for structural analysis of a complex, layered perovskite material with low symmetry by accurately detecting the oxygen positions through octahedral tilting. In this research, the crystal struc…
View article: Local Coordination Environments and Vibrational Dynamics of Protons in Hexagonal and Cubic Sc-Doped BaTiO<sub>3</sub> Proton-Conducting Oxides
Local Coordination Environments and Vibrational Dynamics of Protons in Hexagonal and Cubic Sc-Doped BaTiO<sub>3</sub> Proton-Conducting Oxides Open
The proton local coordination environments and vibrational dynamics associated with the two order of magnitude change in proton conductivity in hydrated forms of hexagonal and cubic structured BaTi1-xScxO3Hx (0.16 < x < 0.7) were inv…
View article: CCDC 1993905: Experimental Crystal Structure Determination
CCDC 1993905: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1993906: Experimental Crystal Structure Determination
CCDC 1993906: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CSD 1788474: Experimental Crystal Structure Determination
CSD 1788474: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 1788473: Experimental Crystal Structure Determination
CSD 1788473: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 1788472: Experimental Crystal Structure Determination
CSD 1788472: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: Insight into the dehydration behaviour of scandium-substituted barium titanate perovskites via simultaneous in situ neutron powder thermodiffractometry and thermogravimetric analysis
Insight into the dehydration behaviour of scandium-substituted barium titanate perovskites via simultaneous in situ neutron powder thermodiffractometry and thermogravimetric analysis Open
Hydration-dehydration cycles are critical to the mechanical performance of ceramic proton conductors. The development of in situ methods is desirable in order to study their structural response under conditions that mimic the operating one…
View article: Phase Behavior and Polymorphism of Formamidinium Lead Iodide
Phase Behavior and Polymorphism of Formamidinium Lead Iodide Open
A greater understanding of the structure–property relationships of hybrid perovskites for solar cells is crucial for enhancing their performance. The low-temperature phases of formamidinium lead iodide (FAPbI3) have been investigated using…
View article: Investigation of the effect on the atomic spin in a spring-exchange coupled magnet
Investigation of the effect on the atomic spin in a spring-exchange coupled magnet Open
Strong magnets with a high energy product are vital when optimizing the efficiency in the electric industry. This can be achieved by making spring-exchange coupled magnets. Samples have been made by partly reducing CoFe2O4 to CoFe2 creatin…
View article: CCDC 623751: Experimental Crystal Structure Determination
CCDC 623751: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 623752: Experimental Crystal Structure Determination
CCDC 623752: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …