Pregled bibliografske jedinice broj: 402438
On the Urbach rule in SbSI ferroelectric crystal
On the Urbach rule in SbSI ferroelectric crystal // Ukrainian journal of physical optics, 10 (2009), 2; 61-70 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 402438 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
On the Urbach rule in SbSI ferroelectric crystal
Autori
Studenyak, I.P. ; Kranjčec, Mladen ; Koperlyos, B.M.
Izvornik
Ukrainian journal of physical optics (1609-1833) 10
(2009), 2;
61-70
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
phase transition; ferroelectric; absorption edge; Urbach rule
Sažetak
Optical absorption edge of SbSI ferroelectric crystal is studied in a broad temperature range. An Urbach behaviour of the absorption edge is observed in paraelectric (T > Tc) and partly in ferroelectric (130 K < T < Tc) phases, whereas deviations from the Urbach rule are revealed at T < 130 K. The influence of crystal lattice disordering of various types on the Urbach absorption edge parameters is studied. The non-Urbach behaviour of the absorption edge is explained by a presence of dynamic structural disordering due to temperature-dependent phonon-defect interactions.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
160-0982886-0873 - Nano-efekti i utjecaji neuređenosti u materijalima za ioniku čvrstog stanja (Kranjčec, Mladen, MZOS ) ( CroRIS)
Ustanove:
Geotehnički fakultet, Varaždin
Profili:
Mladen Kranjčec
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
