Results 101 to 110 of about 118,522 (326)

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li, Shuai Han, Chunyu Zhang, Suyao Liu, Wen Yin, Yuanguang Xia, Pengfei Liu, Zhen‐Hua Ge, Dongyao Zhao, Bingchao Yang, Lulu Huang, Zhi Zhang, Yongsheng Zhang, Yuan Yu, Bangzhi Ge, Chongjian Zhou   +15 more
wiley   +1 more source

Dual conformal invariance for form factors

Journal of High Energy Physics, 2019
Form factors of the stress-tensor multiplet operator in N = 4 $$ \mathcal{N}=4 $$ supersymmetric Yang-Mills reveal surprisingly simple structures similar to those appearing in scattering amplitudes.
Lorenzo Bianchi, Andreas Brandhuber, Rodolfo Panerai, Gabriele Travaglini   +3 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

On instanton effects in the operator product expansion

Journal of High Energy Physics, 2017
We revisit the computation of instanton effects to various correlation functions in N = 4 $$ \mathcal{N}=4 $$ SYM and clarify a controversy existing in the literature regarding their consistency with the OPE and conformal symmetry.
Luis F. Alday, Gregory P. Korchemsky
doaj   +1 more source

Weakly coupled conformal manifolds in 4d

Journal of High Energy Physics, 2020
We classify N $$ \mathcal{N} $$ = 1 gauge theories with simple gauge groups in four dimensions which possess a conformal manifold passing through weak coupling.
Shlomo S. Razamat, Evyatar Sabag, Gabi Zafrir   +2 more
doaj   +1 more source

Impossible symmetries and conformal gravity

Physical Review D
We explore the physics of relativistic gapless phases defined by a mixed anomaly between two generalized conserved currents. The gapless modes can be understood as Goldstone modes arising from the nonlinear realization of (generically higher-form) symmetries arising from these currents.
Kurt Hinterbichler, Austin Joyce, Grégoire Mathys   +2 more
openaire   +3 more sources

Conformal Symmetry and Feynman Integrals [PDF]

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018), 2018
Singularities hidden in the collinear region around an external massless leg may lead to conformal symmetry breaking in otherwise conformally invariant finite loop momentum integrals. For an $\ell$-loop integral, this mechanism leads to a set of linear $2$nd-order differential equations with a non-homogeneous part. The latter, due to the contact nature
openaire   +2 more sources

Decoding the Structure of Benzodithiophene Polymers for High‐Efficiency Organic Solar Cells

Advanced Functional Materials, EarlyView.
This study reveals a unique solid mesophase in top‐performing benzodithiophene‐based polymers for solar cells, comprising stacked solid‐like and liquid‐like layers. Combining nanoscale fibrillar domains with amorphous regions, it introduces a new structural paradigm.
Matteo Sanviti, Sara Marina, Xabier Rodriguez‐Martínez, Jesika Asatryan, Valerio Di Lisio, Sandra Hultmark, Junkal Gutierrez, Eduardo Solano, Jeromy J. Rech, Eugenio L. Solla, Wei You, Agnieszka Tercjak, M. Eugenio Vázquez, Daniele Cangialosi, Christian Müller, Harald Ade, Jaime Martin   +16 more
wiley   +1 more source

Conformal mapping of non-Lorentzian geometries in SU(1, 2) Conformal Field Theory

Journal of High Energy Physics
We realize an explicit conformal mapping between the state and operator pictures in a class of (2 + 1)-dimensional non-Lorentzian field theories with SU(1, 2) × U(1) conformal symmetry.
Stefano Baiguera, Troels Harmark, Yang Lei, Ziqi Yan   +3 more
doaj   +1 more source

On the Real Part of a Conformal Field Theory

Universe, 2018
Every conformal field theory has the symmetry of taking each field to its adjoint. We consider here the quotient (orbifold) conformal field theory obtained by twisting with respect to this symmetry.
Doron Gepner, Hervé Partouche
doaj   +1 more source