Chemical tuning of spin clock transitions in molecular monomers based on nuclear spin-free Ni(<scp>ii</scp>)

Atomic clock transitions in silicon-based spin qubits.

A major challenge in using spins in the solid state for quantum technologies is protecting them from sources of decoherence. This is particularly important in nanodevices where the proximity of material interfaces, and their associated defects, can play a limiting role. Spin decoherence can be addressed to varying degrees by improving material purity or isotopic composition, for example, or act...

Supplementary Information - Atomic clock transitions in silicon-based spin qubits

STUDY OF NUCLEAR LEVEL DENSITY AND SPIN CUT-OFF FACTORS

Nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹A‹63,from a microscopic theory, which includes nuclear pairing interaction. Single particle levels for both Seeger and Nilsson potentials were used in the calcdations. Level densities extracted from the theory are compared with their conesponding experimental values, It is found that the overall...

Chemical distinction by nuclear spin optical rotation.

Nuclear spin optical rotation (NSOR) arising from the Faraday effect constitutes a novel, advantageous method for detection of nuclear magnetic resonance, provided that a distinction is seen between different chemical surroundings of magnetic nuclei. Efficient first-principles calculations for isolated water, ethanol, nitromethane, and urea molecules at standard laser wavelengths reveal a range...

The origin of cooperativity in high-spin-low-spin transitions in molecular crystals

A new model for the first-order transitions between the low-spin and high-spin phases of molecular crystals of some transition metal complexes is proposed. Tbe abrupt spin transitions (or those exhibiting thermal hysteresis) are attributed to first-order transitions between the different crystal phases with the sublattice order. The necessary conditions for these transitions to take place are f...