ANOMALOUS HEAT-CONDUCTION IN FERROELECTRIC-CRYSTALS WITH INCOMMENSURATE PHASES

Authors
BELOV AA JEONG YH
Citation
Aa. Belov et Yh. Jeong, ANOMALOUS HEAT-CONDUCTION IN FERROELECTRIC-CRYSTALS WITH INCOMMENSURATE PHASES, Journal of the Korean Physical Society, 32(4), 1998, pp. 452-455
Citations number
19
Categorie Soggetti
Physics
Journal title
Journal of the Korean Physical Society → ACNP
ISSN journal
03744884
Volume
32
Issue
4
Year of publication
1998
Pages
452 - 455
Database
ISI
SICI code
0374-4884(1998)32:4<452:AHIFWI>2.0.ZU;2-F
Abstract
The results of thermal conductivity measurements for two ferroelectric crystals, (NR4)(2)BeF4 and Rb2ZnCl4, with incommensurate phases are p resented. It is found that anomalies exist in the thermal conductiviti es of these crystals in the incommensurate phases. The incommensurate modulation waves cause these anomalies in the heat-transport processes by the scattering of heat carrying phonons rather than by their direc t participation as heat carriers.