Results 31 to 40 of about 20,039 (207)
Disorder and metal-insulator transitions in Weyl semimetals
, 2015 The Weyl semimetal (WSM) is a newly proposed quantum state of matter. It has Weyl nodes in bulk excitations and Fermi arcs surface states. We study the effects of disorder and localization in WSMs and find three exotic phase transitions.
Chen, Chui-Zhen +5 more
core +1 more source
Optical Conductivity of Weyl Semimetals and Signatures of the Gapped Semimetal Phase Transition
, 2016 The interband optical response of a three-dimensional Dirac cone is linear in photon energy ($\Omega$). Here, we study the evolution of the interband response within a model Hamiltonian which contains Dirac, Weyl and gapped semimetal phases.
Carbotte, J. P., Tabert, C. J.
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Unveiling a crystalline topological insulator in a Weyl semimetal with time-reversal symmetry [PDF]
, 2014 We consider a natural generalization of the lattice model for a periodic array of two layers, A and B, of spinless electrons proposed by Fu [Phys. Rev. Lett. 106, 106802 (2011)] as a prototype for a crystalline insulator.
Aligia, Armando A., Arrachea, Liliana
core +2 more sources
Quantum Multicriticality in Disordered Weyl Semimetal
, 2017 In electronic band structure of solid state material, two band touching points with linear dispersion appear in pair in the momentum space. When they annihilate with each other, the system undergoes a quantum phase transition from three-dimensional Weyl ...
Luo, Xunlong +3 more
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Emerging chiral edge states from the confinement of a magnetic Weyl semimetal in Co$_3$Sn$_2$S$_2$
, 2020 The quantum anomalous Hall effect (QAHE) and magnetic Weyl semimetals (WSMs) are topological states induced by intrinsic magnetic moments and spin-orbit coupling.
Felser, Claudia +5 more
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Weak-value amplification for Weyl-point separation in momentum space
New Journal of Physics, 2018 The existence of Weyl nodes in the momentum space is a hallmark of a Weyl semimetal (WSM). A WSM can be confirmed by observing its Fermi arcs with separated Weyl nodes.
Shizhen Chen +6 more
doaj +1 more source
Magnetic orders and topological phases from f-d exchange in pyrochlore iridates
, 2012 We study theoretically the effects of f-d magnetic exchange interaction in the R$_2$Ir$_2$O$_7$ pyrochlore iridates. The R$^{3+}$ f-electrons form localized magnetic doublets due to the crystal field environment, while the Ir$^{4+}$ d- electrons are more
Chen, Gang, Hermele, Michael
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Comparison of Multi-criteria Decision Making Methods for Selection of Handmade Carpets
Journal of Natural Fibers, 2022 Selecting the best carpet from a set of available alternatives for a particular end-use situation is a difficult job because of association with multiple decision criteria. Three multicriteria decision-making (MCDM) methods, i.e., weighted sum model (WSM)
Shravan Kumar Gupta
doaj +1 more source
Chiral nodes and oscillations in the Josephson current in Weyl semimetals
, 2016 The separation of the Weyl nodes in a broken time-reversal symmetric Weyl semimetal leads to helical quasi-particle excitations at the Weyl nodes, which, when coupled with overall spin conservation allows only inter-nodal transport at the junction of the
Khanna, Udit +3 more
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Advanced Functional Materials, EarlyView.Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min +13 more
wiley +1 more source