Theory of the Phase Transition in the Quasi-One-Dimensional Hydrogen-Bonded Ferroelectric Crystal PbHPO4

1978 ◽  
Vol 44 (1) ◽  
pp. 238-243 ◽  
Author(s):  
A. V. de Carvalho ◽  
S. R. Salinas
Keyword(s):  
Phase Transition ◽  
Ferroelectric Crystal ◽  
One Dimensional ◽  
Hydrogen Bonded

scholarly journals Topological phase transition between a normal insulator and a topological metal state in a quasi-one-dimensional system

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milad Jangjan ◽  
Mir Vahid Hosseini
Keyword(s):  
Phase Transition ◽  
Dimensional System ◽  
Inversion Symmetry ◽  
Topological Phase ◽  
Edge States ◽  
Zero Energy ◽  
One Dimensional ◽  
Topological Phase Transition ◽  
Metal State ◽  
Topological Metal

AbstractWe theoretically report the finding of a new kind of topological phase transition between a normal insulator and a topological metal state where the closing-reopening of bandgap is accompanied by passing the Fermi level through an additional band. The resulting nontrivial topological metal phase is characterized by stable zero-energy localized edge states that exist within the full gapless bulk states. Such states living on a quasi-one-dimensional system with three sublattices per unit cell are protected by hidden inversion symmetry. While other required symmetries such as chiral, particle-hole, or full inversion symmetry are absent in the system.

Concomitant polymorphs of 1,3-bis(3-fluorophenyl)urea

2016 ◽  
Vol 72 (9) ◽  
pp. 692-696 ◽  
Author(s):  
Christina A. Capacci-Daniel ◽  
Jeffery A. Bertke ◽  
Shoaleh Dehghan ◽  
Rupa Hiremath-Darji ◽  
Jennifer A. Swift
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Engineering ◽  
Structural Motif ◽  
Parallel Orientation ◽  
One Dimensional ◽  
Monoclinic Form ◽  
Engineering Studies ◽  
Hydrogen Bonded

Hydrogen bonding between urea functionalities is a common structural motif employed in crystal-engineering studies. Crystallization of 1,3-bis(3-fluorophenyl)urea, C13H10F2N2O, from many solvents yielded concomitant mixtures of at least two polymorphs. In the monoclinic form, one-dimensional chains of hydrogen-bonded urea molecules align in an antiparallel orientation, as is typical of many diphenylureas. In the orthorhombic form, one-dimensional chains of hydrogen-bonded urea molecules have a parallel orientation rarely observed in symmetrically substituted diphenylureas.

Fibriform one-dimensional hydrogen-bonded network composed of 1,2-alt calix[4]arene tetra acetic acid

2005 ◽  
Vol 29 (11) ◽  
pp. 1390 ◽  
Author(s):  
Wei Wang ◽  
Shuling Gong ◽  
Yuanyin Chen ◽  
Jianpin Ma
Keyword(s):  
Acetic Acid ◽  
One Dimensional ◽  
Hydrogen Bonded

scholarly journals Quantum phase transition of light in a one-dimensional photon-hopping-controllable resonator array

2011 ◽  
Vol 84 (4) ◽  
Author(s):  
Chun-Wang Wu ◽  
Ming Gao ◽  
Zhi-Jiao Deng ◽  
Hong-Yi Dai ◽  
Ping-Xing Chen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Quantum Phase Transition ◽  
Quantum Phase ◽  
One Dimensional
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