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master's thesis
Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala
Zagreb: University of Zagreb, Faculty of Science, 2015. urn:nbn:hr:217:742907
Kuveždić, Marko
University of Zagreb
Faculty of Science
Department of Physics

Institutional repository: Repository of the Faculty of Science

Cite this document

Kuveždić, M. (2015). Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:742907

Kuveždić, Marko. "Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala." Master's thesis, University of Zagreb, Faculty of Science, 2015. https://urn.nsk.hr/urn:nbn:hr:217:742907

Kuveždić, Marko. "Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala." Master's thesis, University of Zagreb, Faculty of Science, 2015. https://urn.nsk.hr/urn:nbn:hr:217:742907

Kuveždić, M. (2015). 'Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala', Master's thesis, University of Zagreb, Faculty of Science, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:742907

Kuveždić M. Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2015 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:217:742907

M. Kuveždić, "Transportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:217:742907

Metadata
TitleTransportna i dielektrična svojstva odabranih BEDT-TTF organskih materijala
Title (english)Transport and dielectric properties of selected BEDT-TTF organic materials
AuthorMarko Kuveždić
MentorMario Basletić (mentor)
Committee memberMario Basletić (predsjednik povjerenstva)
Committee memberMiroslav Požek (član povjerenstva)
Committee memberDanko Radić (član povjerenstva)
Committee memberEmil Tafra (član povjerenstva)
Committee memberIvan Kupčić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Physics)
Zagreb
Defense date and country2015-09-03, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract
Izvršena su mjerenja otpornosti i dielektrična spektroskopija pri niskim temperaturama na uzorcima kvazi-dvodimenzionalnih organskih vodiča koji su bazirani na organskoj molekuli bis(ethylenedithio)-tetrathiafulvalene (BEDT-TTF). Istraživanje spoja α -ET_2I_3 je provedeno kako bi se bolje razumjela feroelektrična priroda metalno-izolatorskog prijelaza na T_MI = 135K te pojava relaksacijskih modova u smjeru okomitom na vodljivu ravninu ispod tog prijelaza. Transportna mjerenja su pokazala promjenu vrijednosti energijskog procjepa na niskim temperaturama koja dosad nije razmatrana u literaturi. Također je izvedeno istraživanje svojstava nedavno sintetiziranog spoja κ-ET_2Ag_2(CN)_3 da bismo bolje razumjeli ponašanje srodnog κ -ET_2Cu_2(CN)_3 koji je istaknuti kandidat za pronalaženje osnovnog stanja kvantne spinske tekućine. U ovom radu je prezentirana prva dielektrična karakterizacija uzorka κ-ET_2Ag_2(CN)_3 koja je zabilježila pojavu većeg broja relaksacijskih modova.
Abstract (english)
Resistance measurements and dielectric spectroscopy at low temperatures were performed on samples of quasi-two-dimensional organic conductors based on the organic molecule bis(ethylenedithio)-tetrathiafulvalene (BEDT-TTF). An investigation on the α – ET_2I_3 compound was conducted in order to better understand the ferroelectric nature of the metal-insulator transition at T_MI = 135K, as well as the appearance of out-of-plane relaxation modes below this transition temperature. Transport measurements have shown a change in energy gap values at low temperatures, which was not previously discussed in the literature. The properties of the newly synthesised compound κ – ET_2Ag_2(CN)_3 were also explored in order to better comprehend the behaviour of the related κ – ET_2Cu_2(CN)_3 which is a prominent candidate for finding a quantum spin liquid ground state. In this work the first dielectric characterization of a sample of κ – ET_2Ag_2(CN)_3 is presented which recorded an occurrence of multiple relaxation modes.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:742907
Study programmeTitle: Physics; specializations in: Research
Course: Research
Study programme type: university
Study level: integrated undergraduate and graduate
Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-08-22 12:47:32