Results 41 to 50 of about 4,857 (288)

Large N limit of irreducible tensor models: O(N) rank-3 tensors with mixed permutation symmetry

Journal of High Energy Physics, 2018
It has recently been proven that in rank three tensor models, the antisymmetric and symmetric traceless sectors both support a large N expansion dominated by melon diagrams [1].
Sylvain Carrozza
doaj   +1 more source

Irreducible constituents of monomial representations

Journal of Symbolic Computation, 2006
AbstractWe describe an algorithm for obtaining the central primitive idempotents of the algebra associated with a monomial representation. As a consequence, we obtain its irreducible constituents. This is implemented in Magma, using an algorithm based on Dixon’s modular approach.
openaire   +2 more sources

Irreducible representations of crossed products

Journal of Pure and Applied Algebra, 1998
AbstractWe prove that if the dimension of any irreducible module for a finite-dimensional algebra over an algebraically closed field divides the dimension of the algebra, then the same is true of any crossed product of that algebra with a group algebra or its dual, provided the characteristic of the field does not divide the order of the group ...
Sarah Witherspoon, Susan Montgomery
openaire   +2 more sources

Phonon Driven Ferroelectricity and Raman Active Modes in Hybrid Organic‐Inorganic Perovskites

Advanced Materials, EarlyView.
Ferroelectric domains, a hallmark of ferroelectricity, are studied using temperature‐dependent Raman spectroscopy to uncover characteristic phonons associated with ferroelectric phase transitions in different n‐value HOIPs. Higher n‐value HOIP demonstrate a reduced ferroelectric switching energy barrier, providing valuable insights for optimizing ...
Chuanzhao Li, Shurong Yuan, Yixin Li, Zhenyue Wu, Yuanyuan Jin, Kian Ping Loh, Kai Leng   +6 more
wiley   +1 more source

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

Advanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon, Preetam Dacha, Heng Zhang, Elif Unsal, Mike Hambsch, Alexander Croy, Shuai Fu, Nguyen Ngan Nguyen, Kejun Liu, Haoyuan Qi, Sein Chung, Minyoung Jeong, Lei Gao, Ute Kaiser, Kilwon Cho, Hai I. Wang, Renhao Dong, Gianaurelio Cuniberti, Mischa Bonn, Stefan C. B. Mannsfeld, Xinliang Feng   +20 more
wiley   +1 more source

Quantitatively Predicting Angle‐Resolved Polarized Raman Intensity of Anisotropic Layered Materials

Advanced Materials, EarlyView.
This study develops comprehensive methodologies to predict angle‐resolved polarized Raman (ARPR) intensity profiles of anisotropic layered materials (ALMs), spanning from atomically‐thin layers to bulk limit. By considering birefringence, linear dichroism and multilayer interference, the complex refractive indexes and intrinsic Raman tensors are ...
Jia‐Liang Xie, Tao Liu, Yu‐Chen Leng, Rui Mei, Heng Wu, Chen‐Kai Liu, Jia‐Hong Wang, Yang Li, Xue‐Feng Yu, Miao‐Ling Lin, Ping‐Heng Tan   +10 more
wiley   +1 more source

A Phenomenological Symmetry Rule for Chemical Reactivity Under Vibrational Strong Coupling

Angewandte Chemie, EarlyView.
A general symmetry rule emerges from the study of charge transfer complexes in cavities that points to an underlying framework to the predict the outcome of chemical reactivity under vibrational strong coupling. Abstract Symmetry is known to strongly influence the course of a chemical reaction.
A. Jayachandran, B. Patrahau, J. G. Ricca, M. K. Mahato, Y. Pang, K. Nagarajan, A. Thomas, C. Genet, T. W. Ebbesen   +8 more
wiley   +2 more sources

Mn3SnN‐Based Antiferromagnetic Tunnel Junction with Giant Tunneling Magnetoresistance and Multi‐States: Design and Theoretical Validation

Advanced Science, EarlyView.
A non‐collinear Mn3SnN/SrTiO3/Mn3SnN (001) AFMTJ is proposed with a theoretical TMR exceeding 1500%, enabled by optimal momentum (k)‐space matching between Mn3SnN's spin‐polarized Fermi surface (pk||${p}_{{\bm{k}}_{\mathbf{|}\mathbf{|}}}$) and the low‐decay‐rate (κk||${\kappa}_{{\bm{k}}_{\mathbf{|}\mathbf{|}}}$) of the SrTiO3 barrier.
Shiqi Liu, Tingwei Chen, Baochun Wu, Haodong Fan, Yingmei Zhu, Sheng Bi, Yuntian Liu, Yinuo Shi, Wenbiao Zhang, Mengxi Wang, Qiang Li, Jie Yang, Jing Lu, Tiejun Zhou, Bo Liu   +14 more
wiley   +1 more source

A Thorough Characterization of the Tellurocyanate Anion

Angewandte Chemie, EarlyView.
[K@crypt‐222][TeCN] was synthesized from KCN, Te, and crypt‐222 in acetone. We discuss fundamental properties of [TeCN]−: Single crystal X‐ray diffraction, nuclear magnetic resonance (13C, 15N, 125Te), vibrational spectroscopy, and negative ion photoelectron spectroscopy.
Hennes Günther, Florian Weigend, Xiulan Xie, Wenjin Cao, Xiao‐Fei Gao, Xue‐Bin Wang, Frank Tambornino   +6 more
wiley   +2 more sources

3D Topological Inorganic Electrides: Screening, Properties, and Applications

Advanced Science, EarlyView.
In inorganic electrides, zero‐, one‐, and two‐dimensional (0D, 1D, and 2D) interstitial anionic electrons interconnect within lattice cavities, collectively forming a three‐dimensional (3D) network, further coupling magnetism and topological features, leading to the emergence of 3D topological inorganic electrides.
Zhenzhou Guo, Weizhen Meng, Qianwen Zhang, Xia Cheng, Shiyao Wang, Yalong Jiao, Xiaoming Zhang, Ying Liu, Tie Yang   +8 more
wiley   +1 more source