The effect of anomalous adsorption of H2O and CO2 by pre-hydrated YBa_2Cu_3O_{6.53}

TL;DR

This study investigates how mild hydration affects YBa_2Cu_3O_{6.53}, revealing increased absorption of H2O and CO2, potential water incorporation into the crystal lattice, and the coexistence of magnetic regions.

Contribution

It provides new insights into the anomalous adsorption behavior and lattice interactions of hydrated YBa_2Cu_3O_{6.53} with implications for its magnetic properties.

Findings

Enhanced absorption of H2O and CO2 after hydration

Evidence of water entering the crystal lattice

Presence of antiferromagnetic and diamagnetic regions

Abstract

The results of a comprehensive study on the YBa_2Cu_3O_{6.53} oxide subjected to "mild" hydration (exposure at small values of pH2O) by a special technique have been reported. The material modified in this way acquires an interesting property; namely, in natural conditions it intensively absorbs large quantities of components (H2O and CO2) comprising the gas atmosphere. Arguments have been adduced that at least the water enters the crystal lattice of the yttrium-barium cuprate. This lattice is in the two-phase (tetragonal and orthorhombic) state: testing of the magnetic properties of the oxide has revealed the presence of antiferromagnetic and diamagnetic regions in this material.