Results 91 to 100 of about 319,180 (281)

Exact many-electron ground states on diamond and triangle Hubbard chains

, 2008
We construct exact ground states of interacting electrons on triangle and diamond Hubbard chains. The construction requires (i) a rewriting of the Hamiltonian into positive semidefinite form, (ii) the construction of a many-electron ground state of this ...
Gulacsi, Zsolt, Kampf, Arno, Vollhardt, Dieter   +2 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Flux-mediated effective Su–Schrieffer–Heeger model in an impurity decorated diamond chain

APL Photonics
In photonic flat-band (FB) systems, which are characterized by a halting of light transmission, perturbations can play a major role in determining the transport properties of the system.
D. Viedma, A. M. Marques, R. G. Dias, V. Ahufinger   +3 more
doaj   +1 more source

Spin-1/2 Ising-Heisenberg distorted diamond chain with antiferromagnetic Ising and ferromagnetic Heisenberg interactions

Condensed Matter Physics
The exactly solvable spin-1/2 Ising-Heisenberg distorted diamond chain in the presence of the external magnetic field is investigated for the case of antiferromagnetic Ising and ferromagnetic XXZ Heisenberg interactions.
B. M. Lisnyi
doaj   +1 more source

Magnetic properties of the $S=1/2$ distorted diamond chain at T=0

, 2003
We explore, at T=0, the magnetic properties of the $S=1/2$ antiferromagnetic distorted diamond chain described by the Hamiltonian ${\cal H} = \sum_{j=1}^{N/3}{J_1 ({\bi S}_{3j-1} \cdot {\bi S}_{3j} + {\bi S}_{3j} \cdot {\bi S}_{3j+1}) + J_2 {\bi S ...
Ajiro Y, Berezinskii Z L, Berezinskii Z L, Bonner J C, Drillon M, Drillon M, Dzyaloshinsky I, Honecker A, Ishii M, Kamikawa T, Kikuchi H, Kitazawa A, Kitazawa A, Kitazawa A, Kiyomi Okamoto, Kosterlitz J M, Lieb E, Makoto Kaburagi, Moriya T, Nakasu A, Nomura K, Nomura K, Nomura K, Okamoto K, Okamoto K, Okamoto K, Okamoto K, Okamoto K, Okamoto K, Okazaki N, Okazaki N, Oshikawa M, Sakurai H, Sano K, Takano K, Takashi Tonegawa, Tonegawa T, Tonegawa T, Tonegawa T, Totsuka K, White S R, White S R, Zigan F   +42 more
core   +1 more source

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

Advanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

Injection Compression Molded Microlens Arrays for Hyperspectral Imaging

Micromachines, 2018
In this work, a polymer microlens array (MLA) for a hyperspectral imaging (HSI) system is produced by means of ultraprecision milling (UP-milling) and injection compression molding.
Marcel Roeder, Marc Drexler, Thilo Rothermel, Thomas Meissner, Thomas Guenther, André Zimmermann   +5 more
doaj   +1 more source

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Multiple frustration-induced plateaus in a magnetization process of the mixed spin-1/2 and spin-3/2 Ising-Heisenberg diamond chain

, 2008
Magnetization process of the mixed spin-1/2 and spin-3/2 Ising-Heisenberg diamond chain is examined by combining three exact analytical techniques: Kambe projection method, decoration-iteration transformation and transfer-matrix method.
Baxter R J, J Strečka, L Čanová, M Jaščur, T Lučivjanský, Takano K, Čanová L   +6 more
core   +1 more source

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source