TY  - THES
A1  - Gati, Elena Aurelia
T1  - Thermodynamic studies of metal-insulator transitions in organic charge-transfer salts
N2  - This thesis aimed at identifying and understanding the interplay of charge and lattice degrees of freedom at metal-insulator transitions that are driven by strong electron correlations, i.e., Mott and charge-order metal-insulator transitions. To this end, measurements of the thermal expansion were performed, which have proven to be particularly suited to deliver insight into the role of lattice degrees of freedom in strongly correlated electron systems. Prime examples of such systems are the herein studied organic charge-transfer salts which stand out by a high tunability of the interaction strength. 
The central topic of this thesis was the investigation of the universal behavior of the pressure-induced finite-temperature Mott critical endpoint in the organic charge-transfer salt kappa-(BEDT-TTF)2Cu[N(CN)2]Cl. In the present work, it was proven experimentally that lattice effects play a crucial role for the universal behavior, in contrast to the assumption made in previous works.
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/44291
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-442913
CY  - Frankfurt am Main
ER  -