Results 51 to 60 of about 42,553 (297)

Twist-stacked 2D bilayer Fe3GeTe2 with tunable magnetism

, 2022
Controlling magnetism in two-dimensional (2D) magnetic compounds is of great significance for potential applications in novel spintronic devices. Based on the van der Waals monolayer, twist-stacking of bilayers can lead to different interlayer magnetic ...
Xiaoning Li (581082), Wei Sun (93580), Zhenxiang Cheng (1901332), Hang Li (123039), Dong Chen (448284), Wenxuan Wang (6307526)   +5 more
core  

A fibre forming smectic twist-bent liquid crystalline phase [PDF]

, 2015
We demonstrate the nanostructure and filament formation of a novel liquid crystal phase of a dimeric mesogen below the twist–bend nematic phase. The new fibre-forming phase is distinguished by a short-correlated smectic order combined with an additional ...
Jákli, A., Zhang, C., Mehl, G. H., Tamba, M. G., Eremin, A., Stannarius, R., Salili, S. M.   +6 more
core   +1 more source

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

Geometry of Călugăreanu's theorem

, 2005
A central result in the space geometry of closed twisted ribbons is Călugăreanu's theorem (also known as White's formula, or the Călugăreanu–White–Fuller theorem).
Dennis, MR, Dennis, M.R., Hannay, JH, Hannay, J.H., Dennis, M.R.; id_orcid   +4 more
core   +1 more source

Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase

, 2022
International audienceComplex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure.
Vallet, Maxime, Yu, Wenbo, Guitton, Antoine, Taupin, Vincent, Guénolé, Julien   +4 more
core   +1 more source

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

Statistical Properties of a Twisted Gaussian Schell-Model Beam Carrying the Cross Phase in a Turbulent Atmosphere

Photonics
In this letter, we conducted a detailed investigation of the statistical properties, such as spectral density, spectral degree of coherence (SDOC), orbital angular momentum (OAM) flux density, and propagation factor M2, of a twisted Gaussian Schell-model
Wenshuo Hou, Leixin Liu, Xianlong Liu, Yangjian Cai, Xiaofeng Peng   +4 more
doaj   +1 more source

Bifurcation analysis of the twist-Freedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions

, 2009
Motivated by a recent investigation of Millar and McKay [Mol. Cryst. Liq. Cryst., 435, 277/[937]-286/[946] (2005)], we study the magnetic field twist-Fr´eedericksz transition for a nematic liquid crystal of positive diamagnetic anisotropy with strong ...
Grinfeld, Michael, Pinto, Joao T., Pinto, J.T., Gartland Jr., Eugene C., Gartland, E.C., Da Costa, F.P., Da Costa, Fernando P., Grinfeld, M.   +7 more
core   +1 more source