Results 261 to 270 of about 173,343,641 (293)

Optimal twist angle for a graphene-like bilayer

Journal of Physics: Condensed Matter, 2023
Abstract The first optimal—or ‘magic’—angle leading to the nullity of the Dirac/Fermi velocity for twisted bilayer graphene is re-evaluated in the Bistritzer–MacDonald set-up (Bistritzer and MacDonald 2011 Proc. Natl Acad. Sci. 108 12233–7).
August Romeo, Hans Supèr
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High-angle twist in GaSe

Philosophical Magazine, 1971
Crystals of GaSe grown by transport reaction with iodine were found to contain high-angle twist boundaries perpendicular to their c axis. A simple model is proposed which affords the twist boundary energy in layer structures such as GaSe and MoS2 to be calculated numerically.
E. Mooser, M. Schluter
openaire   +1 more source

Double-twisted nematic director configurations in cylindrical capillaries with a photocontrollable angle of twist

Physical Review E, 2021
The orientational configurations of thermotropic nematic liquid crystal in cylindrical capillaries with nondegenerated planar surface anchoring are investigated. The boundary conditions were determined by a photoaligning coating on the inner wall of the capillary treated with a linearly polarized UV light while rotating the capillary around its long ...
A. Nych, R. Kravchuk, U. Ognysta, M. Ledney, O. Yaroshchuk   +4 more
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The study of DNA sequences by their sequences of twist angles

Journal of Theoretical Biology, 1989
To study the properties of DNA sequences we have transformed the sequences of bases into the sequences of twist angles along the chain of DNA double helix by using the Dickerson sum function. The Fourier transform and the auto-correlation function of the twist angles sequences have been used to study the periodicity and randomness of the original DNA ...
C T, Zhang, Y Q, Cen
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Twist Mappings with Non-Periodic Angles

2012
Consider an annulus A with coordinates \((\theta,r)\), \(\theta + 2\pi \equiv \theta \), \(r \in [a,b]\). A map \((\theta,r)\mapsto ({\theta }_{1},{r}_{1})\) is twist if it satisfies \(\frac{\partial {\theta }_{1}} {\partial r} > 0\). Twist maps have been extensively studied and they are useful to understand the dynamics of autonomous or periodic ...
Kunze, Markus, Ortega, Rafael
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Analysis of Sequences of Twist Angles in DNA Double Helix

International Journal of Biological Macromolecules, 1989
By assuming that the realistic DNA chains are random sequence of bases and using the Tung-Harvey formula for the prediction of twist angles, it is shown that the mean value of the sequence of twist angles is almost sequence-independent. In general the variance for the A, T-rich sequence is larger than that of G, C-rich sequence.
Chun-Ting Zhang, C T Zhang
exaly   +3 more sources

Large-angle twist effect

Nature Photonics, 2023
Bingchen Deng, Fengnian Xia
openaire   +1 more source

A narrow angle with a twist

Clinical Eye and Vision Care, 1996
M.W. Dul, B. Yip
openaire   +1 more source

Twist angle definitions

Inorganic Chemistry, 1976
Mary A. Flandera, E. C. Lingafelter
openaire   +1 more source

Superfluid stiffness of magic-angle twisted bilayer graphene

Nature
The physics of superconductivity in magic-angle twisted bilayer graphene (MATBG) is a topic of keen interest in moiré systems research, and it may provide an insight into the pairing mechanism of other strongly correlated materials such as high-critical-temperature superconductors. Here we use d.c.
Miuko Tanaka, Joel Î-j. Wang, Thao H. Dinh, Daniel Rodan-Legrain, Sameia Zaman, Max Hays, Aziza Almanakly, Bharath Kannan, David K. Kim, Bethany M. Niedzielski, Kyle Serniak, Mollie E. Schwartz, Kenji Watanabe, Takashi Taniguchi, Terry P. Orlando, Simon Gustavsson, Jeffrey A. Grover, Pablo Jarillo-Herrero, William D. Oliver   +18 more
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