The simple model that can describe structure and charge ordering in complex doped organic crystals is proposed. We consider the quasione-dimensional model of a crystal with chains (stacks) of flat BEDT-TTF molecules. In a chain of large molecules, small molecules fill every space between large molecules. The interaction between all molecules is described by the Lennard-Jones potential. It is shown that the small dopant molecules are in the double-well potential. It is shown that in case of the electrically neutral molecules at low temperatures, there is a fluctuating structural ordering: the small molecules group in pairs near a large molecule, and the lattice period in the fluctuation domain doubles. The structure of the boundary between the fluctuation domains is defined. In case of the charged molecules, correction to electric dipole interaction makes the system essentially three-dimensional, and there is ferroelectric ordering in a chain and an antiferroelectric one between the chains. Structure of the charge domains and domain boundaries are described.
Skip Nav Destination
,
,
Article navigation
Research Article|
May 01 2021
Heavy doped organic crystals ordering Available to Purchase
V. A. Lykah;
V. A. Lykah
a)
1
National Technical University “Kharkiv Polytechnic Institute
,” Kharkiv 61002, Ukraine
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
E. S. Syrkin;
E. S. Syrkin
b)
2
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
, Kharkiv 61103, Ukraine
Search for other works by this author on:
E. N. Trotskii
E. N. Trotskii
3
V. N. Karazin Kharkiv National University
, Kharkiv 61022, Ukraine
Search for other works by this author on:
V. A. Lykah
1,a)
E. S. Syrkin
2,b)
E. N. Trotskii
3
1
National Technical University “Kharkiv Polytechnic Institute
,” Kharkiv 61002, Ukraine
2
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
, Kharkiv 61103, Ukraine
3
V. N. Karazin Kharkiv National University
, Kharkiv 61022, Ukraine
a)Author to whom correspondence should be addressed: [email protected]
b)
E-mail: [email protected]
Fiz. Nizk. Temp. 47, 440–445 (May 2021)
Translated by AIP Author Services
Low Temp. Phys. 47, 406–411 (2021)
Article history
Received:
March 22 2021
Citation
V. A. Lykah, E. S. Syrkin, E. N. Trotskii; Heavy doped organic crystals ordering. Low Temp. Phys. 1 May 2021; 47 (5): 406–411. https://doi.org/10.1063/10.0004235
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Carbon footprint of helium recovery systems
A. T. Jones, R. B. E. Down, et al.
Laser-induced fluorescence spectroscopy of TIPS-pentacene
Moritz Michelbach, Alexander Demyanenko, et al.
Elimination of substrate-induced ferromagnetic resonance linewidth broadening in the epitaxial system YIG–GGG by microstructuring
David Schmoll, Rostyslav O. Serha, et al.
Related Content
Phase structures and interaction of BEDT-TTF molecules
Low Temp. Phys. (May 2023)
Thermal expansion of organic superconductor α-(BEDT-TTF)2 NH4Hg(SCN)4
Low Temp. Phys. (January 2019)
Strain-induced massless Dirac fermion state of the molecular conductor α-(BEDT-TTF)2I3
Appl. Phys. Lett. (March 2023)
Structures and electronic phases of the bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) clusters and κ-(BEDT-TTF) salts: A theoretical study based on ab initio molecular orbital methods
J. Chem. Phys. (October 1999)
ESR study of optically enhanced phase transition in (BEDT–TTF)3Ta2F11
J. Chem. Phys. (February 1987)