Cold, anisotropically-interacting van der Waals molecule: TiHe

Abstract

We have used laser ablation and helium buffer-gas cooling to produce the titanium-helium van der Waals molecule at cryogenic temperatures. The molecules were detected through laser-induced fluorescence spectroscopy. Ground-state Ti-He binding energies were determined for the ground and first rotationally excited states from studying equilibrium thermodynamic properties, and found to agree well with theoretical calculations based on newly calculated ab initio Ti-He interaction potentials, opening up novel possibilities for studying the formation, dynamics, and non-universal chemistry of van der Waals clusters at low temperatures.

References in corpus (4)

• Observation of the Efimov state of the helium trimer
• Rotation of quantum impurities in the presence of a many-body environment
• Breaking van der Waals molecules with magnetic fields
• Formation of van der Waals molecules in buffer gas cooled magnetic traps

Cited by in corpus (10)

• Three-body recombination in physical chemistry
• Molecular Collisions: from Near-cold to Ultra-cold
• On the formation of van der Waals complexes through three-body recombination
• Classical threshold law for the formation of van der Waals molecules
• Ion-atom-atom three-body recombination: from the cold to the thermal regime
• Ion-atom-atom three-body recombination in cold hydrogen and deuterium plasmas
• Spin hierarchy in van der Waals molecule formation via ultracold three-body recombination
• Spin structure of diatomic van der Waals molecules of alkali atoms
• Isotope study of the nonlinear pressure shifts of ${}^{85}$Rb and ${}^{87}$Rb hyperfine resonances in Ar, Kr, and Xe buffer gases
• Electrostatic guiding of the methylidyne radical at cryogenic temperatures