Helmut R. Brand

Max Planck Institute for Polymer Research — Germany

Materials Science · Physical Sciences

51h-index9.7kcitations450works1.52yr avg
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Research Topics

Liquid Crystal Research Advancements(186), Nonlinear Dynamics and Pattern Formation(169), Advanced Materials and Mechanics(66), Theoretical and Computational Physics(49), Nonlinear Photonic Systems(38)

Publications450 total

Macroscopic dynamics of the ferroelectric smectic <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>C</mml:mi> <mml:mi>F</mml:mi> </mml:msub> </mml:math> phase with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>C</mml:mi> <mml:mrow> <mml:mn>1</mml:mn> <mml:mi>h</mml:mi> </mml:mrow> </mml:msub> </mml:math> symmetry
Physical review. E·2025Open Access
Extreme waves generated by the interaction of stationary and oscillatory dissipative solitons
Chaos An Interdisciplinary Journal of Nonlinear Science·2025
Macroscopic dynamics of the antiferroelectric smectic $$Z_\textrm{A}$$ phase and its magnetic analog $$Z_\textrm{M}$$
The European Physical Journal E·2025· 1 citedOpen Access
Dissipative pulses stabilized by nonlinear gradient terms: A review of their dynamics and their interaction
Physica D Nonlinear Phenomena·2025· 2 cited
Macroscopic dynamics of ferromagnetic smectic-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>A</mml:mi></mml:math>
Physical review. E·2024· 2 citedOpen Access
Macroscopic dynamics of the ferroelectric smectic $$A_F$$ phase with $$C_{\infty v} $$ symmetry
The European Physical Journal E·2024· 4 citedOpen Access
External concentration gradients can drive a propagating wave in a coherently layered system of nanosheets
The Journal of Chemical Physics·2023
Macroscopic dynamics of superfluid <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math> with a spatially modulated pair density wave
Physical review. B./Physical review. B·2023· 2 citedOpen Access
Characterization of time-dependence for dissipative solitons stabilized by nonlinear gradient terms: Periodic and quasiperiodic vs chaotic behavior
Chaos An Interdisciplinary Journal of Nonlinear Science·2023· 5 cited
Dissipative solitons stabilized by nonlinear gradient terms: Time-dependent behavior and generic properties
Chaos An Interdisciplinary Journal of Nonlinear Science·2022· 5 cited
Oscillatory dissipative solitons stabilized by nonlinear gradient terms: The transition to localized spatiotemporal disorder
Physical review. E·2022· 6 cited
Macroscopic behavior of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>P</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:math> (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>) and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>P</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> (distorted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>) phases of superfluid <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math>: Soundlike excitations
Physical review. B./Physical review. B·2022· 3 citedOpen Access
Kyozi Kawasaki
Physics Today·2022
A Two-Fluid Model for the Macroscopic Behavior of Nematic Fluids and Gels in a Chiral Solvent
Brazilian Journal of Physics·2022· 1 citedOpen Access
A two-fluid model for the macroscopic behavior of polar nematic fluids and gels in a nonchiral or a chiral solvent
The European Physical Journal E·2022· 2 citedOpen Access
Ferromagnetic nematics: A macroscopic two-fluid description
The Journal of Chemical Physics·2022· 1 citedOpen Access
Two-fluid model for a fluid with tetrahedral-octupolar order
Physical review. E·2021· 2 citedOpen Access
21 Symmetry aspects in the macroscopic dynamics of magnetorheological gels and general liquid crystalline magnetic elastomers
2021Open Access
A two-fluid model for the formation of clusters close to a continuous or almost continuous transition
Rheologica Acta·2021· 6 citedOpen Access
Macroscopic behavior of materials composed of two elastic media
Physical review. B./Physical review. B·2021· 5 citedOpen Access
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Frequent Co-authors

Harald Pleiner(14), Robert J. Deissler(7), Heino Finkelmann(5), P. E. Cladis(4), Victor Steinberg(4), Günter K. Auernhammer(3), P. Martinoty(3), Orazio Descalzi(3), A. Schenzle(2), Eshel Ben‐Jacob(2), Lorenz Kramer(2), P. S. Lomdahl(2), Alan C. Newell(2), P. C. Hohenberg(2), Yusril Yusuf(2), Shoichi Kai(2), R. Graham(2), Gregory T. Dee(1), J. S. Langer(1), M. C. Cross(1)