Results 81 to 90 of about 59,033 (309)

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

Signature of topological band crossing in ferromagnetic Cr_{1/3}NbSe_{2} epitaxial thin film

Physical Review Research, 2022
In intercalated transition metal dichalcogenides (I-TMDCs), transition metal intercalation introduces magnetic phases which in some cases induce topological band crossing. However, evidence of the topological properties remains elusive in such materials.
Bruno Kenichi Saika, Satoshi Hamao, Yuki Majima, Xiang Huang, Hideki Matsuoka, Satoshi Yoshida, Miho Kitamura, Masato Sakano, Tatsuto Hatanaka, Takuya Nomoto, Motoaki Hirayama, Koji Horiba, Hiroshi Kumigashira, Ryotaro Arita, Yoshihiro Iwasa, Masaki Nakano, Kyoko Ishizaka   +16 more
doaj   +1 more source

Ferromagnetism in the vicinity of Lifshitz topological transitions [PDF]

Physical Review B, 2017
We show that the critical temperature of a ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. The significant variations of the the Curie temperature occur close to the Lifshitz topological transition points where ...
Grigoryev, P.S., Glazov, M.M., Kavokin, A.V., Varlamov, A.A.   +3 more
openaire   +3 more sources

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

Spin-controlled topological phase transition in non-Euclidean space

Frontiers of Optoelectronics
Modulation of topological phase transition has been pursued by researchers in both condensed matter and optics research fields, and has been realized in Euclidean systems, such as topological photonic crystals, topological metamaterials, and coupled ...
Zhuochen Du, Jinze Gao, Qiuchen Yan, Cuicui Lu, Xiaoyong Hu, Qihuang Gong   +5 more
doaj   +1 more source

Topology, Phase Transitions, and the Spherical Model [PDF]

Physical Review Letters, 2005
The Topological Hypothesis states that phase transitions should be related to changes in the topology of configuration space. The necessity of such changes has already been demonstrated. We characterize exactly the topology of the configuration space of the short range Berlin-Kac spherical model, for spins lying in hypercubic lattices of dimension d ...
Risau-Gusman, S., Ribeiro-Teixeira, A. C., Stariolo, D. A.   +2 more
openaire   +3 more sources

Exotic Lifshitz transitions in topological materials

, 2018
| openaire: EC/H2020/694248/EU//TOPVACTopological Lifshitz transitions involve many types of topological structures in momentum and frequency-momentum spaces, such as Fermi surfaces, Dirac lines, Dirac and Weyl points, etc., each of which has its own ...
G E Volovik, Volovik, G. E.
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Crystalline Weyl semimetal phase in Quantum Spin Hall systems under magnetic fields

SciPost Physics Core, 2022
We investigate an unconventional topological phase transition that occurs in quantum spin Hall (QSH) systems when applying an external in-plane magnetic field. We show that this transition between QSH and trivial insulator phases is separated by a stable
Fernando Dominguez, Benedikt Scharf, Ewelina M. Hankiewicz
doaj   +1 more source

Multicritical Fermi Surface Topological Transitions [PDF]

Physical Review Letters, 2019
A wide variety of complex phases in quantum materials are driven by electron-electron interactions, which are enhanced through density of states peaks. A well known example occurs at van Hove singularities where the Fermi surface undergoes a topological transition.
Dmitry V. Efremov, Alex Shtyk, Andreas W. Rost, Claudio Chamon, Andrew P. Mackenzie, Joseph J. Betouras   +5 more
openaire   +6 more sources