6533b82efe1ef96bd12930f7

RESEARCH PRODUCT

Pressure measurements of TO-phonon anharmonicity in isotopic ZnS

R. E. TallmanR. LauckAndrés CantareroJorge SerranoManuel CardonaT. M. RitterB. A. Weinstein

subject

Condensed matter physicsChemistryPhononHydrostatic pressureAnharmonicityCondensed Matter PhysicsMolecular physicsDiamond anvil cellElectronic Optical and Magnetic Materialslaw.inventionsymbols.namesakePressure measurementlawKinetic isotope effectsymbolsDensity of statesRaman spectroscopy

description

We have measured the dependence on pressure of the line-widths of the TO and LO Raman phonons of β-ZnS. In order to enhance the phenomena observed, and to eliminate possible effects of isotopic disorder, we have measured a nearly isotopically pure crystal, 68 Zn 32 S. The strongly structured pressure effects observed are interpreted on the basis of anharmonic decay and the corresponding two-phonon density of states.

https://doi.org/10.1002/pssb.200304183