Reply to ''Comment on 'Direct observation of relaxation modes in KNbO/sub 3/ and BaTiO/sub 3/ using inelastic light scattering' ''

Journal Article · Sat Jul 01 00:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.40.788· OSTI ID:5951730

Sokoloff, J P; Chase, L L; Rytz, D

In the preceding Comment Fontana /ital et/ /ital al/. make three assertions basedon experimental facts they believe to be in contradiction with our results, andthen describe results and conclusions of their own recent Raman studies. Inparticular, they show spectra which they believe indicate that there is acoupled relaxation-soft phonon mode of /ital B//sub 2/ symmetry inorthorhombic KNbO/sub 3/. In our Reply we attempt to answer their threeobjections in some detail, and show why we do not believe their objections tobe valid. Additionally we describe the differences between their Ramanmeasurements and ours, which show clearly that there is no evidence of a/ital B//sub 2/ relaxation mode in orthorhombic KNbO/sub 3/, anddiscuss why we think such difference may have occurred.

• Research Organization: Optical Sciences Center, University of Arizona, Tucson, Arizona 85721(US); Lawrence Livermore National Laboratories, Livermore, California 94550; Hughes Research Laboratories, Malibu, California 90265
• OSTI ID: 5951730
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 40:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
POTASSIUM COMPOUNDS
RAMAN SPECTRA
CRYSTAL-PHASE TRANSFORMATIONS
INELASTIC SCATTERING
LIGHT SCATTERING
NIOBATES
ORTHORHOMBIC LATTICES
PHONONS
RELAXATION
TETRAGONAL LATTICES
ALKALI METAL COMPOUNDS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
QUASI PARTICLES
REFRACTORY METAL COMPOUNDS
SCATTERING
SPECTRA
TRANSITION ELEMENT COMPOUNDS
360603* - Materials- Properties