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Magnetic phase transition and critical behaviour in copper(II) octacyanotungs...
In the present project we will focus on critical behaviour of Cu3(pyrazine)[W(CN)8]2 revealing magnetic phase transition at Tc=43 K. The findings will be compared to those... -
Neutron scattering and muSR studies of magnetic phenomena in YFe2Al10: case s...
In strongly correlated electron systems, the proximity to magnetic ordering has been of special interest. Magnetism in this class of systems is often suppressed by the Kondo... -
Solvation and interaction of polymers showing lower critical solution tempera...
LCST, or ¿cloud point¿ is a property of some types of polymers in solution. At low temperatures, the polymers are fully solvated and exist as extended conformations in solution.... -
Polymer-induced critical pase separation
This proposal concerns a novel approach to phase separation in self-assembling colloidal systems. Microemulsions can be readily formulated to display critical-type phase... -
Magnon decay below the critical field in the S=1/2 Heisenberg antiferromagnet...
The two dimensional Heisenberg antiferromagnet on a square lattice is one of the most studied model quantum magnets. This is in part due to its intrinsic interest but also to... -
Spin Dynamics in the Quantum Critical and Ferromagnetic Regimes of URu2-xRe
Recently, there has been a significant amount of interest in quantum phase transitions and non-Fermi liquid (NFL) behavior exhibited by heavy-fermion compounds. Interestingly... -
Muon Spin Resonance investigations on two quantum critical points in CeFeAs1-...
Recently, it has been reported that CeFeAsO belongs to orthorhombic structure where both Fe and Ce moments order antiferromagnetically around 140K and 4K, respectively, whereas... -
Unusual structural change in geminis above the critical micelle concentration
gemini surfactants are essentially two surfactants joined by a linking chain. We have extensively explored cationic geminis at the air/water interface and they exhibit a range... -
Inelastic neutron scattering in the Ce3Co4Sn13 heavy Fermion compound
We propose to use the OSIRIS spectrometer to measure the inelastic magnetic scattering on the newly discovered heavy Fermion compound Ce3Co4Sn13. This compound has one of the... -
Phase-object approximation in neutron reflectometry
Recently De Haan et al. described the phase-object approximation for small angle neutron scattering. This method can be extended towards neutron reflectometry. Prelimenary... -
SR study near the ferromagnetic quantum critical point in CePd1-xRhx ...
Rcently the NFL behaviour near an antiferromagnetic quantum critical point (AFQCP) has been investigated extensively. Very recently, we have investigated, for the first time,... -
Quantum critical dynamics in the purely dipolar antiferromagnet LiErF4
LiErF4 is an example of an XY dipolar coupled antiferromagnet with planar anisotropy. As such it exhibits a quantum phase transition (QPT) in a small field of 4kOe, which is of... -
Magnon decay below the critical field in the S=1/2 Heisenberg antiferromagnet...
In this continuation proposal, we propose to study the spin excitations of the spin 1/2 square lattice Heisenberg antiferromagnet CAPCC in fields just below its saturation... -
The XY pyrochlore AFM:spin dynamics upon rare-earth dilution in Er2Ti2O7 (CON...
Er2Ti2O7 constitutes an experimental realization of the <111> easy-plane pyrochlore AFM and orders at 1.1 K into the theoretically predicted spin structure. However, the... -
Understanding the decrease in adsorption of surfactants at a solid surface ab...
Previous data obtained from neutron reflection shown in Figure 1 has clearly shown that the surface excess of some surfactants when adsorbed from aqueous solution to a sapphire... -
Quantum and thermal critical scaling in XY-dipolar antiferromagnet LiErF4
We have established the material LiErF4 as a dipolar antiferromagnet with planar anisotropy, exhibiting both classical and quantum phase transitions. Where, thermal transition... -
Spin dynamics in Sn-doped Er2Ti2-xSnxO7: probing the putative quantum critica...
The frustrated pyrochlore Er2Ti2O7 is a rare example of a magnetic system in which quantum fluctuations are capable of selecting a unique ground state out of the macroscopically... -
Magnetic critical scattering in UGe2 under pressure
The proposal is to measure the low-energy spin dynamics of the ferromagnetic superconductor UGe2 at the pressure which maximizes superconducting transition temperature and at...
