Spectral Analysis on the Nickel Hydroxyl and Deuteroxyl Nitrate Powders

Abstract

Abstract Infrared absorption (4000-400 cm−1) and Raman (4000-50 cm−1) spectra of the magnetic geometrically frustrated compound nickel hydroxyl nitrate (Ni2(OH)3NO3), and incompletely deuterized nickel hydroxyl/deuteroxyl nitrate (Ni2(OH/D)3NO3) powders, which were synthesized successfully by the hydrothermal methods, have been measured at room temperature and analyzed in four spectral regions (the [OH/D] and [NO3] functional group regions, the [OH/D] and [NO3] correlation peak region and the Ni-related fingerprint region) by referring to the spectral assignments of the layered β-Ni(OH)2 and β-Ni2(OH)3Cl. The spectral analysis can be beneficial to analyzing their low temperature spectral properties, which can help to understand the underlying physics of their exotic quantum phenomena at low temperatures from the spectroscopic point of view.