Pregled bibliografske jedinice broj: 49043
Acoustic collective excitations and static dielectric response in incommensurate crystals with real order parameter
Acoustic collective excitations and static dielectric response in incommensurate crystals with real order parameter // Fizika A, 8 (1999), 4; 383-392 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 49043 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Acoustic collective excitations and static dielectric response in incommensurate crystals with real order parameter
Autori
Dananić, Vladimir ; Bjeliš, Aleksa ; Latković, Mladen
Izvornik
Fizika A (1330-0008) 8
(1999), 4;
383-392
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
incommensurate systems; phase transitions; collective modes; Landau model; dielectric response
Sažetak
Starting from the basic Landau model for the incommensurate-commensurate materials of the class II, we derive the spectrum of collective modes for all (meta)stable states from the corresponding phase diagram. It is shown that all incommensurate states posses Goldstone modes with acoustic dispersions. The representation in terms of collective modes is also used in the calculation and discussion of static dielectric response for systems with the commensurate wave number in the centre of the Brillouin zone.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
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- The INSPEC Science Abstracts series
