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Magnetic and Nuclear Structures of Low-dimensional Antiferromagnet K(1-δ...
In 2010 several groups showed that iron selenide, already a superconductor at 8 K, could be charged with alkali cations leading to higher critical temperatures. These compounds... -
Giant magneto-elastic interactions and changes in the phonon spectrum of CoMnSi
Neutrons are almost never used to examine the role of phonons in materials with large magnetocaloric effects, despite the large magneto-elastic coupling often exhibited by them.... -
Magnetic structure of pyrochlore irridate Y2Ir2O7
We propose to study by powder neutron diffraction the ordered magnetic state of the pyrochlore compound Y2Ir2O7. There is currently an increasing interest in the condensed... -
Structural characterization of cellulose-based nanocomposites
Cellulose, known as a fascinating biopolymer and a never ending-source of new sustainable materials, is attracting increasing attention in different fields owing to its... -
Neutron diffraction studies of incommensurate charge ordered phase Pr0.20Sr0....
The occurrence of multiferroic properties in incommensurately charge and magnetic ordered phases in the narrow band Pr1-xCaxMnO3 has freshly steered the search of newer such... -
Investigating the breakdown of spring-exchange coupling at low temperature on...
Strong magnets with a high energy product are vital when optimizing the efficiency in the electricindustry. This can be achieved by making spring-exchange coupled magnets.... -
Study of the protein denaturation in glassy matrices
The proposed experiment is addressed to use the MARI spectrometer to study the thermal denaturation process of the psychrophile enzyme alpha-amylase in presence of bioprotectant... -
Probing the ground state magnetic structure of single crystalline Ho3Fe5O12, ...
Lu and Ho counterparts of RE3Fe5O12 will be an appropriate platform to reveal the complexmagnetic ground state of rare earth iron garnets with common formula RE3Fe5O12. Lu3+... -
Temperature Effects in YIG Films Probed by PNR
Yttrium iron garnet Fe3Y5O12 (YIG) is the material of choice in spin pumping, spin Seeback and Spin Hall magnetoresistance (SHMR) measurements [1-3]. This is mainly due to two... -
From giant magneto-elastic coupling to negative thermal expansion
We recently used high-resolution neutron diffraction on HRPD to observe the largest magneto-elastic coupling ever seen in a metallic magnet. The material studied was CoMnSi, a... -
Neutron scattering study on the honeycomb Heisenberg-Kitaev magnet alpha-RuCl3
The experimental realization of a Heisenberg-Kitaev model on the honeycomb lattice has been a major topic in a condensed matter physics, because the model predict a novel... -
Multiferroic (Ferroelastic/Magnetic) Phase Transitions in KMnF3
KMnF3 perovskite undergoes 3 structural, and two magnetic phase transitions on cooling from 300 K to 2 K. Above 185 K the compound is in the aristotype structure, on cooling... -
Coordinated, Recoiling Molecules Tethered by Hydrogen Bonding: Ammonia in Zeo...
We request 5 days on IRIS to investigate the hindrance to molecular rotation of ammonia in a zeolite framework due to hydrogen bonding interactions. This is a tied proposal to... -
Structural Studies of BiFeO3-KNbO3 Solid Solution
Both BiFeO3 and KNbO3 are technologically important materials. BiFeO3 exhibs room temperature magnetic and ferroelectric ordering whilst KNbO3 is a lead free ferroelectric.... -
Investigation of the phase diagram of Ba1-xNaxTi2Sb2O (WISH portion)
We propose using WISH and HRPD to examine the structure of the Ba1-xNaxTi2Sb2O phase diagram as a function of temperature. The primary goals are the determination of the... -
Neutron analysis of the structure of SrAl2O4 from 300 to 1273 K.
SrAl2O4 is a stuffed tridymite that has attracted a good deal of interest, since doping with Eu2+ leads to a material with elastic-luminescent response. The structure and phase... -
Role of the microstructure on proton dynamics in BaZrO3 based proton conductors
Proton-conducting, acceptor-doped, BaZrO3 based perovskite oxides are one of the most promising family of compounds for applications as, eg electrolyte materials, in the... -
Reversible B-H Bond Activation at Cationic Rh(III) Centres: Structural Charac...
Catalytic processes leading to the functionalization of organic molecules by boron-containing reagents are highly topical ¿ ranging from transition metal catalysed hydro- and... -
Probing Magnetic Interactions in LnOH(CO3) Paramagnetic Magnetocalorics
Local magnetic interactions in lanthanide compounds have recently been shown to tune their entropically driven magnetocaloric effect (MCE), useful for magnetic coolants. In this... -
Investigation of the low temperature phases of SrSnO3
The present proposal is to examine the low temperature structural properties of SrSnO3 using the HRPD. This work aims to examine the structural basis for the unusual low...
