6533b82ffe1ef96bd1295ac3

RESEARCH PRODUCT

Experimental study of the crystals [N(CH3)4]2Znl4by Raman spectroscopy and optical measurements; comparison with isomorph compounds

G. GodefroyRoland MachetRene PerretS. W. WanB. Jannot

subject

Materials scienceOptical measurementsDielectricCondensed Matter PhysicsRotationElectronic Optical and Magnetic MaterialsCrystalsymbols.namesakeCrystallographyNuclear magnetic resonancePhase (matter)symbolsRaman spectroscopyMonoclinic crystal system

description

Abstract Raman spectra and rotation angle of the indicatrix have been measured in the intermediate phase of the crystal [N(CH3)4]2Znl4 The results are consistent with the existence of large ferroelastric domains piled up along the a axis in a monoclinic phase P1121/a (Pnma notation in the paraelectric phase). The phase sequence (Pnma-P1121/a-P21ca) in this compound is different from other members of [N(CH3)4]2BX4 family.

https://doi.org/10.1080/00150199208017060