Structure and Physical Properties of Low-Dimensional Molecular Conductors, [PXX][FeIII(Pc)(CN)2] and [PXX][CoIII(Pc)(CN)2] (PXX =peri-xanthenoxanthene, Pc = phthalocyaninato)

2003 ◽  
Vol 76 (10) ◽  
pp. 1935-1940 ◽  
Author(s):  
Masaki Matsuda ◽  
Takehiro Asari ◽  
Toshio Naito ◽  
Tamotsu Inabe ◽  
Noriaki Hanasaki ◽  
...  
2014 ◽  
Vol 53 (13) ◽  
pp. 7028-7039 ◽  
Author(s):  
Matteo Atzori ◽  
Flavia Pop ◽  
Pascale Auban-Senzier ◽  
Carlos J. Gómez-García ◽  
Enric Canadell ◽  
...  

Author(s):  
Manuela Ramos Silva ◽  
Joana T. Coutinho ◽  
Laura C.J. Pereira ◽  
Pablo Martín-Ramos ◽  
João C. Waerenborgh

2018 ◽  
Vol 5 (4) ◽  
pp. 590-640 ◽  
Author(s):  
Jean-Paul Pouget ◽  
Pere Alemany ◽  
Enric Canadell

In contrast to currently accepted ideas anions play an essential role in directing the structural and transport properties of many molecular conductors.


2019 ◽  
Vol 55 (70) ◽  
pp. 10436-10439
Author(s):  
Sourav Marik ◽  
Bruno Gonano ◽  
Fabien Veillon ◽  
Yohann Bréard ◽  
Denis Pelloquin ◽  
...  

We report the synthesis, structure and physical properties of a hitherto unreported brownmillerite compound Sr2ScFeO5.


1996 ◽  
Vol 74 (6) ◽  
pp. 810-818 ◽  
Author(s):  
William M. Davis ◽  
John D. Goddard

Dithia- and diselena-diazolyl radicals (HCN2E2 E = S, Se) and dimers are important building blocks in the design of low-dimensional molecular conductors. Research on the tellurium-based analogues is much rarer. This work reports the molecular and electronic structures of the cation, radical, and radical dimers of 1,2,3,5-ditelluradiazolyl using ab initio theory including electron correlation by Møller–Plesset perturbation theory up to partial fourth order (MP4SDQ). A face-to-face C2v dimer is predicted to be bound with respect to two radicals by approximately 18 kcal/mol. A C2h, dimer also has been studied and is ca. 2 kcal/mol less stable than the C2v conformer. Relaxing symmetry constraints on the dimers led to more energetically stable structures at the Hartree–Fock level but the C2v structure remains the most stable at a level of theory including electron correlation effects. The results for the Te compounds along with our earlier research on the S and Se analogues provide predictions for the geometries, vibrational frequencies, and ionization potentials for the Te species to assist in future experiments. Key words: tellurium, ab initio, ditelluradiazolyl, dimers, binding.


2011 ◽  
Vol 37 (10) ◽  
pp. 744-748 ◽  
Author(s):  
L. V. Zorina ◽  
S. V. Simonov ◽  
S. S. Khasanov ◽  
R. P. Shibaeva

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3702 ◽  
Author(s):  
Zivieri

Solitons are a challenging topic in condensed matter physics and materials science because of the interplay between their topological and physical properties and for the crucial role they play in topological phase transitions. Among them, chiral skyrmions hosted in ferromagnetic systems are axisymmetric solitonic states attracting a lot of attention for their dazzling physical properties and technological applications. In this paper, the equilibrium statistical thermodynamics of chiral magnetic skyrmions developing in a ferromagnetic material having the shape of an ultrathin cylindrical dot is investigated. This is accomplished by determining via analytical calculations for both Néel and Bloch skyrmions: (1) the internal energy of a single chiral skyrmion; (2) the partition function; (3) the free energy; (4) the pressure; and (5) the equation of state of a skyrmion diameters population. To calculate the thermodynamic functions for points (2)–(5), the derivation of the average internal energy and of the configurational entropy is crucial. Numerical calculations of the thermodynamic functions for points (1)–(5) are applied to Néel skyrmions. These results could advance the field of materials science with special regard to low-dimensional magnetic systems.


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