We present a lattice model to study the equilibrium phase diagram of ordered alloys with one magnetic component that exhibits a low temperature phase separation between paramagnetic and ferromagnetic phases. The model is constructed from the experimental facts observed in Cu32xAlMnx and it includes coupling between configurational and magnetic degrees of freedom that are appropriate for reprodu...

A novel approach has been developed to synthesize slightly fluorinated graphene quantum dots (GQDs-F) through thermal cutting of highly fluorinated graphene. The fluorinated graphene with substantial structure defects is fragile and is readily attacked. The direct evaporation of abundant CFn (n = 2, 3) groups near structure defects lead to the loss of adjacent skelton C atoms, and the fluorinat...

The intermetallic compound Na49Cd58.5Sn37.5 was obtained in nearly 100% yield after fusion of the elements in stoichiometric proportions in a Nb container and quenching of the mixture. The structure was determined by single-crystal X-ray diffraction (rhombohedral, R3hm, Z ) 3, a ) 16.034(1) Å, c ) 50.64(1) Å; R, Rw(F) ) 3.3%, 4.2%). The covalently-bonded part of the structure is a network of ca...

Self-assembly of components into complex functional patterns at microscale is common in nature, and used increasingly in numerous disciplines such as optoelectronics, microfabrication, sensors, tissue engineering and computation. Here, we describe the use of stable radicals to guide the self-assembly of magnetically tunable gels, which we call 'magnetoceptive' materials at the scale of hundreds...

The advent of different lanthanide-binding reagents has made site-specific labelling of proteins with paramagnetic lanthanides a viable proposition. This brings many powerful techniques originally established and demonstrated for paramagnetic metalloproteins into the mainstream of structural biology. The promise is that, by exploiting the long-range effects of paramagnetism, lanthanide labellin...

The metal-rich intermetallic compounds NblrSi, NblrGe, and TalrSi were synthesized by arc-melting of the elements and subsequent annealing in glassy carbon crucibles in a high-frequency furnace. The three compounds were investigated by X-ray diffraction on powders and single crystals: TiNiSi type, Pnma, a = 641.27(3), b = 379.48(2), c = 727.70(3) pm, wR2 = 0.0773, 430 F 2 values for NblrSi, a =...

We analyze the orbital magnetic susceptibility from band structure of twisted bilayer graphene. Close to charge neutrality, out-of-plane inherits strong diamagnetic response Increasing doping, a crossover diamagnetism paramagnetism is obtained and logarithmic divergence develops at van Hove singularity Moir\'e lattice in first band. The enhanced stronger for relatively large angle but gets supp...