Results 51 to 60 of about 233,077 (337)

Theory of microphase separation in bidisperse chiral membranes

, 2016
We present a Ginzburg-Landau theory of micro phase separation in a bidisperse chiral membrane consisting of rods of opposite handendness. This model system undergoes a phase transition from an equilibrium state where the two components are completely ...
Baskaran, Aparna, Baskaran, Arvind, Chakraborty, Bulbul, Hagan, Michael F., Sakhardande, Raunak, Stanojeviea, Stefan   +5 more
core   +1 more source

Smectic Order in Double-Twist Cylinders [PDF]

, 1997
I propose a double-twist texture with local smectic order, which may have been seen in recent experiments. As in the Renn-Lubensky TGB phase, the smectic order is broken only through a lattice of screw dislocations. A melted lattice of screw dislocations
Kamien, Randall D.
core   +2 more sources

The Beauty of Twist-Bend Nematic Phase: Fast Switching Domains, First Order Fréedericksz Transition and a Hierarchy of Structures

Crystals, 2021
The twist-bend nematic phase (NTB) exhibits a complicated hierarchy of structures responsible for several intriguing properties presented here. These are: the observation of a fast electrooptic response, the exhibition of a large electroclinic effect ...
Vitaly P. Panov, Jang-Kun Song, Georg H. Mehl, Jagdish K. Vij   +3 more
doaj   +1 more source

Triply-Periodic Smectics [PDF]

, 2006
Twist-grain-boundary phases in smectics are the geometrical analogs of the Abrikosov flux lattice in superconductors. At large twist angles, the nonlinear elasticity is important in evaluating their energetics.
Kamien, Randall D., Santangelo, Christian D.   +1 more
core   +4 more sources

Twist-Bend Nematogenic Supramolecular Dimers and Trimers Formed by Hydrogen Bonding

Crystals, 2020
A selection of novel non-symmetric supramolecular liquid crystal dimers and trimers formed by hydrogen-bonding have been prepared and their phase behaviour characterised by polarised optical microscopy, X-ray diffraction and temperature-dependent Fourier-
Rebecca Walker, Damian Pociecha, Alfonso Martinez-Felipe, John MD Storey, Ewa Gorecka, Corrie T Imrie   +5 more
doaj   +1 more source

Identification of Gapless Phases by a Twisting Operator

Physical Review Letters
We propose a general necessary condition for a spin chain with SO(3) spin-rotation symmetry to be gapped. Specifically, we prove that the ground state(s) of an SO(3)-symmetric gapped spin chain must be spin singlet(s), and the expectation value of a twisting operator asymptotically approaches unity in the thermodynamic limit, where finite-size ...
Hang Su, Tengzhou Zhang, Yuan Yao, Akira Furusaki   +3 more
openaire   +3 more sources

Quantum interference tuning of spin-orbit coupling in twisted van der Waals trilayers

Physical Review Research, 2022
We show that in van der Waals stacks of twisted hexagonal layers the proximity induced Rashba spin-orbit coupling can be affected by quantum interference.
Csaba G. Péterfalvi, Alessandro David, Péter Rakyta, Guido Burkard, Andor Kormányos   +4 more
doaj   +1 more source

Fixed twist dynamics of SO(3) gauge theory [PDF]

, 2006
We perform a throughout study of 3+1 dim. SO(3) LGT for any fixed-twist background. We concentrate in particular on the physically significant trivial and 1-twist sectors.
A. Barresi, A. Barresi, A. Barresi, A. Barresi, A. Barresi, A. Barresi, A. Giacomo Di, A.M. Polyakov, A.V. Smilga, B. Svetitsky, E. Tomboulis, G. Bhanot, G. Burgio, G. Hooft ’t, G. Hooft ’t, G. Mack, I.G. Halliday, I.G. Halliday, J. Fingberg, J. Greensite, J. Kuti, J.M. Carmona, L. Caneschi, L. Susskind, L.D. McLerran, P. Forcrand de, P. Forcrand de, P. Forcrand de, P. Forcrand de, S. Datta, S. Datta, S. Datta, S. Datta, S. Mandelstam, T.G. Kovacs, Y. Nambu   +35 more
core   +3 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source