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Pregled bibliografske jedinice broj: 542198

The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system


Tafra, Emil; Čulo, Matija; Basletić, Mario; Korin-Hamzić, Bojana; Hamzić, Amir; Jacobsen, Claus S.
The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system // Journal of physics. Condensed matter, 24 (2012), 4; 045602-1 doi:10.1088/0953-8984/24/4/045602 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 542198 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system

Autori
Tafra, Emil ; Čulo, Matija ; Basletić, Mario ; Korin-Hamzić, Bojana ; Hamzić, Amir ; Jacobsen, Claus S.

Izvornik
Journal of physics. Condensed matter (0953-8984) 24 (2012), 4; 045602-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
quasi-one-dimensional organic conductors; Hall effect; equivalent isotropic sample

Sažetak
We have measured the Hall effect on recently synthesized single crystals of the quasi-one-dimensional organic conductor TTF–TCNQ (tetrathiafulvalene–tetracyanoquinodimethane), a well known charge transfer complex that has two kinds of conductive stacks: the donor (TTF) and the acceptor (TCNQ) chains. The measurements were performed in the temperature interval 30 K < T < 300 K and for several different magnetic field and current directions through the crystal. By applying the equivalent isotropic sample approach, we have demonstrated the importance of the choice of optimal geometry for accurate Hall effect measurements. Our results show, contrary to past belief, that the Hall coefficient does not depend on the geometry of measurements and that the Hall coefficient value is approximately zero in the high temperature region (T > 150 K), implying that there is no dominance of either the TTF or the TCNQ chain. At lower temperatures our measurements clearly prove that all three phase transitions of TTF–TCNQ could be identified from Hall effect measurements.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
035-0000000-2836 - Jako korelirani anorganski, organski i biomaterijali (Tomić, Silvia, MZOS ) ( POIROT)
119-1191458-1023 - Sustavi s prostornim i dimenzijskim ograničenjima: korelacije i spinski efekti (Hamzić, Amir, MZOS ) ( POIROT)

Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mario Basletić (autor)

Avatar Url Matija Culo (autor)

Avatar Url Emil Tafra (autor)

Avatar Url Amir Hamzić (autor)

Avatar Url Bojana Hamzić (autor)

Citiraj ovu publikaciju

Tafra, Emil; Čulo, Matija; Basletić, Mario; Korin-Hamzić, Bojana; Hamzić, Amir; Jacobsen, Claus S.
The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system // Journal of physics. Condensed matter, 24 (2012), 4; 045602-1 doi:10.1088/0953-8984/24/4/045602 (međunarodna recenzija, članak, znanstveni)
Tafra, E., Čulo, M., Basletić, M., Korin-Hamzić, B., Hamzić, A. & Jacobsen, C. (2012) The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system. Journal of physics. Condensed matter, 24 (4), 045602-1 doi:10.1088/0953-8984/24/4/045602.
@article{article, year = {2012}, pages = {045602-1-045602-6}, DOI = {10.1088/0953-8984/24/4/045602}, keywords = {quasi-one-dimensional organic conductors, Hall effect, equivalent isotropic sample}, journal = {Journal of physics. Condensed matter}, doi = {10.1088/0953-8984/24/4/045602}, volume = {24}, number = {4}, issn = {0953-8984}, title = {The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system}, keyword = {quasi-one-dimensional organic conductors, Hall effect, equivalent isotropic sample} }
@article{article, year = {2012}, pages = {045602-1-045602-6}, DOI = {10.1088/0953-8984/24/4/045602}, keywords = {quasi-one-dimensional organic conductors, Hall effect, equivalent isotropic sample}, journal = {Journal of physics. Condensed matter}, doi = {10.1088/0953-8984/24/4/045602}, volume = {24}, number = {4}, issn = {0953-8984}, title = {The Hall effect in the organic conductor TTF-TCNQ: Choice of geometry for accurate measurements of a highly anisotropic system}, keyword = {quasi-one-dimensional organic conductors, Hall effect, equivalent isotropic sample} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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