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We analyse the effects of the environment (solvent quality, presence of extended structures - crowded environment) that may have impact on the order of the transition between denaturated and bounded DNA states and lead to changes in the…

Statistical Mechanics · Physics 2021-10-28 Yu. Holovatch , C. von Ferber , Yu. Honchar

In this work we provide a novel class of degenerate solutions to the Dirac equation for massive particles, where the rotation of the spin of the particles is synchronized with the rotation of the magnetic field of the wave-like…

We generalize the earlier theory by Fredrickson [J. Rheol. v.38, 1045 (1994)] to study the orientational behaviour of the hexagonal phase of diblock copolymer melt subjected to steady shear flow. We use symmetry arguments to show that the…

Soft Condensed Matter · Physics 2009-10-31 A. N. Morozov , A. V. Zvelindovsky , J. G. E. M. Fraaije

In an ideal classical pyrochlore antiferromagnet without perturbations, an infinite degeneracy at a ground state leads to absence of a magnetic order and spin-glass transition. Here we present Na$_3$Mn(CO$_3$)$_2$Cl as a new candidate…

Strongly Correlated Electrons · Physics 2018-10-19 Kazuhiro Nawa , Daisuke Okuyama , Maxim Avdeev , Hiroyuki Nojiri , Masahiro Yoshida , Daichi Ueta , Hideki Yoshizawa , Taku J. Sato

Two-dimensional (2D) massless Dirac electrons appear on a surface of three-dimensional topological insulators. The conductivity of such a 2D Dirac electron system is studied for strong topological insulators in the case of the Fermi level…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 Yositake Takane

We theoretically investigate the optical activity of three dimensional Dirac semimetals (DSMs) using circular dichroism (CD). We show that DSMs in the presence of a magnetic field in any one of the mirror-symmetric planes of the materials…

Mesoscale and Nanoscale Physics · Physics 2021-03-16 Abhirup Roy Karmakar , S. Nandy , G. P. Das , Kush Saha

We report a study of the reorientation of the helimagnetic order in the archetypal cubic chiral magnet MnSi as a function of magnetic field direction. The reorientation process as inferred from small-angle neutron scattering, the…

Strongly Correlated Electrons · Physics 2017-02-01 A. Bauer , A. Chacon , M. Wagner , M. Halder. R. Georgii , A. Rosch , C. Pfleiderer , M. Garst

Polymer solutions subject to pressure driven flow and in nanoscale slit pores are systematically investigated using the dissipative particle dynamics approach. We investigated the effect of molecular weight, polymer concentration and flow…

Soft Condensed Matter · Physics 2015-06-25 J. A. Millan , W. Jiang , M. Laradji , Y. Wang

When mixed together, DNA and polyaminoamide (PAMAM) dendrimers form fibers that condense into a compact structure. We use optical tweezers to pull condensed fibers and investigate the decondensation transition by measuring force-extension…

Soft Condensed Matter · Physics 2009-11-11 F. Ritort , S. Mihardja , S. B. Smith , C. Bustamante

The present work emphasizes the relevance of low-field NMR relaxometry to investigate colloid-polymer hydrogels by probing water dynamics across a wide range of formulations between $\rm 10^{\circ}C$ and $\rm 80^{\circ}C$. By examining the…

Soft Condensed Matter · Physics 2026-03-16 Léo Hervéou , Gauthier Legrand , Thibaut Divoux , Guilhem P. Baeza

We investigate light transport in three-dimensional disordered media composed of irregular dielectric particles using large scale full-wave simulations. For subwavelength particles with size parameter $kr \approx 1$ and high refractive…

Optics · Physics 2026-04-29 Yevgen Grynko , Dustin Siebert , Jan Sperling , Jens Förstner

Partially coherent electromagnetic sources with cylindrical symmetry and infinite extent radiating outwards are introduced. Their $3\times3$ cross-spectral density matrix is given through expansions of the field components in terms of basis…

Granular materials often segregate under mechanical agitation, which differs from the expectation of mixing. It is well known that a bidisperse mixture of granular materials in a partially filled rotating cylinder exhibits alternating bands…

Soft Condensed Matter · Physics 2023-06-09 Kurumi Kondo , Hiroyuki Ebata , Shio Inagaki

Epitaxial La3/4Ca1/4MnO3/MgO(100) (LCMO) thin films show unusual rhombohedral (R-3c) structure with a new perovskite superstructure due to unique ordering of La and Ca at the A-site positions. Very sharp insulator-metal and…

Strongly Correlated Electrons · Physics 2009-11-11 V. Moshnyaga , L. Sudheendra , O. I. Lebedev , K. Gehrke , O. Shapoval , A. Belenchuk , S. A. Koester , B. Damaschke , G. van Tendeloo , K. Samwer

We study by simulation the physics of two colloidal particles in a cholesteric liquid crystal with tangential order parameter alignment at the particle surface. The effective force between the pair is attractive at short range and favors…

Soft Condensed Matter · Physics 2015-03-19 J. S. Lintuvuori , K. Stratford , M. E. Cates , D. Marenduzzo

Using series expansion based on the flow equation method we study the zero temperature properties of the spin-1/2 planar pyrochlore antiferromagnet in the limit of strong diagonal coupling. Starting from the limit of decoupled crossed…

Strongly Correlated Electrons · Physics 2013-05-29 Marcelo Arlego , Wolfram Brenig

An analysis of the IR absorbance for the segmented functional groups of liquid crystal dimers: mesogen and linker, enabled the orientation order to be determined and information about the dipole interactions in the nematic and twist-bend…

Soft Condensed Matter · Physics 2026-05-19 Antoni Kocot , Barbara Loska , Yuki Arakawa , Katarzyna Merkel

Cadmium arsenide Cd$_3$As$_2$ hosts massless Dirac electrons in its ambient-conditions tetragonal phase. We report X-ray diffraction and electrical resistivity measurements of Cd$_3$As$_2$ upon cycling pressure beyond the critical pressure…

The electronic orders appearing in condensed matter systems are originating from the precise arrangement of atoms constituting the crystal as well as their nature. This teneous relationship can lead to highly different phases in condensed…

Rational control over the periodic arrangement of particles by means of external stimuli is a technologically important aspect of colloidal science with important physical underpinnings. Here, a robust structural control of particle…

Soft Condensed Matter · Physics 2023-04-18 Devika Venkuzhy Sudhakaran , Dinesh Kumar Sahu , Osamu Haba , Surajit Dhara