111 datasets found

Quantum phase transitions are abrupt qualitative changes of a system's groundstate occurring only at exactly zero temperature. Such critical points - although never reachable...

On the basis of exchange couplings obtained from early inelastic neutron measurements, we conjecture that the stacked honeycomb magnet FeTiO3 contains Dirac nodal lines in the...

The two dimensional Heisenberg antiferromagnet on a square lattice is one of the most studied model in quantum magnetism . This is in part due to its intrinsic interest but also...

Ca10Cr7O28 is a quantum spin liquid ������ characterised by the absence of static magnetic order where the spins are in coherent dynamical motion in the ground state. This state...

The aim of the proposed experiment is to explore the magnetic behavior of the new rare earth Pyrochlores Pr2Hf2O7 and Nd2Hf2O7 by using CNCS to measure their magnetic...

This proposal is part of our research programme to explore the spin dynamics of strongly-frustrated quantum magnets. A canonical model is the spin-1/2 triangular antiferromagnet...

Quantum phase transitions have recently received a lot of interest in various different fields of physics and the emergent universal properties have been studied in very...

Rare-earth frustrated magnets have attracted great interest because they can form rather complex ground states such as hidden order phases, the order parameters of which cannot...

In the proposed experiment we intend to resolve the spin waves in GdPtBi, which is an outstanding representative of a novel class of magnets - topological antiferromagnets. In...

Charge density wave (CDW) order has recently been established as a generic feature of high-temperature cuprate superconductors. It occurs near 1/8 doping and has been observed...

A large amount of contemporary research by both chemists and physicists is focused on exploiting the spin of electrons with the attempt of revolutionising the current technology...

We propose an experiment on the low energy spectrometer LET to study temperature effects on the Luttinger liquid (LL) phase on the spin ladder geometry. The spin ladder material...

Sr3CuIrO6 shows two magnetic phase transitions at ~16K and 5K. Both phases exhibit evidenceof being spin glasses or spin glass-like and from AC susceptibility measurements and...

The Sr3CuPtxxIr1-xO6 system has been considered to be a candidate random quantum spin chain. (RQS). For x=1 adjacent S=1/2 Cu2+ions are antiferromagnetically (AF) coupled to...

Th S = ½ AF spin ladder is one of the most important models in quantum magnetism. While its properties throughout the (H,T)-phase diagram may be considered to be well understood...

In a number of recent experiments on the pure CeB6 compound, we have revealed strong quasielastic inten-sity in the normal (paramagnetic) state with a rich momentum-space...

We have recently succeeded in measuring the excitation spectrum of charge doped cuprate chains with a 90 degree Cu-O-Cu bonding geometry. This study resolved a long standing...

A quantum spin liquid (QSL) is an exotic state of matter, which shows no magnetic order down to zero temperature but the spins are highly entangled. Its elementary excitations...

By introducing transvers terms in the effective spin-1/2 Hamiltonian on the pyrochlore lattice, the quantum spin ice (QSI) state, a special quantum spin liquid whose emergent...

We wish to measure the magnetic excitations and subgap states in a doped (x=0.06) spin ladder using MERLIN. The purpose of the measurements is to ascertain the relationship...