We explore the emergence of spin-polarised flat-bands at head-to-head domain walls in a recently predicted class antiferromagnetic topological insulators hosting planar magnetisation. show, framework quantum well physics, that by tuning width wall one can control functional form bound states appearing across it. Furthermore, we demonstrate effect parity number layers multilayer sample has on el...

We present the first measurements of magnetisation and Raman light scattering on α′ − N aV 2 O 5 single crystals. Below 34 K, we observe a pronounced isotropic decrease of the susceptibility indicating the opening of a spin gap. The transition temperature is slightly field dependent. Raman experiments reveal a crystallographic distortion at the transition. Our results clearly establish α′ − N a...

The finite-lattice method of series expansions has been combined with a new extrapolation procedure to extend the low-temperature series for the specific heat, spontaneous magnetisation and susceptibility of the spin-1 Ising model on the square lattice. The extended series were derived by directly calculating the series to order 99 (in the variable u = exp[−J/k B T ]) and using the new extrapol...

We demonstrate the first two-dimensional correlation NMR (COSY) spectra obtained at ultra low frequencies (ULF) using the Earth's magnetic field. Using a specially developed spectrometer with multiple audio-frequency pulses under controlled pulse phase, we observe magnetisation transfer arising from heteronuclear J-couplings in trifluoroethanol and para-difluorobenzene. The 2D COSY spectra exhi...

Magnetic resonance imaging (MRI) is often divided into structural MRI and functional MRI (fMRI). The former is a widely used imaging technique in research as well as in clinical practice. This review describes the more important developments in structural MRI in recent years, including high resolution imaging, T2 relaxation measurement, T2*-weighted imaging, T1 relaxation measurement, magnetisa...

In order to study the interstitial atoms in the NiAs-type structure MnSb the spin density distribution in MnFeg^gSB was investigated. The magnetic moment Fe Cu(Fe) = 1.0 ± 0.2 p^/atom) is polarized antiparallel to the magnetisation of the Mn-matrix. The unpaired electron configuration of Mn is the same as in Mnj QySb which indicates that the smaller, c-lattice parameter is due to a hybridisatio...

We analyse the spin-flip dynamics in kinetic Ising chains with KimballDeker-Haake (KDH) transition rates, and evaluate exactly the evolution of global quantities like magnetisation and its fluctuations, and the two-time susceptibilities and correlations of the global spin and the global three-spin. Information on the ageing behaviour after a quench to zero temperature is extracted. PACS numbers...