PRL: Condensed Matter: Structure, etc.
Author(s): Ri He, Haowei Xu, Peijun Yang, Kai Chang, Hua Wang, and Zhicheng ZhongFerroelastic twin walls in nonpolar materials can give rise to a spontaneous polarization due to symmetry breaking. Nevertheless, the bistable polarity of twin walls and its reversal have not yet been demonstrated. Here, we report that the polarity of SrTiO3 twin walls...
Author(s): Tevž Lotrič and Steven H. SimonThe ν=12+12 quantum Hall bilayer has been previsously modeled using Chern-Simons-RPA-Eliashberg (CSRPAE) theory to describe pairing between the two layers. However, these approaches are troubled by a number of divergences and ambiguities. By using a “modified” RPA approximation to account for mass r… [Phys....
Author(s): B. Yang, Qing Ji, F. Z. Huang, Jiacong Li, Y. Z. Tian, B. Xue, Ruxian Zhu, Hui Wu, Hanyue Yang, Y. B. Yang, Shaolong Tang, H. B. Zhao, Y. Cao, J. Du, B. G. Wang, Chunfeng Zhang, and D. WuWe report the picosecond spin current generation from the interface between a heavy metal and a vicinal antiferromagnet insulator Cr2O3 by laser pulses at...
Author(s): Vukan Levajac, Hristo Barakov, Grzegorz P. Mazur, Nick van Loo, Leo P. Kouwenhoven, Yuli V. Nazarov, and Ji-Yin WangWe study the current-phase relation (CPR) of an InSb-Al nanowire Josephson junction in parallel magnetic fields up to 700 mT. At high magnetic fields and in narrow voltage intervals of a gate under the junction, the CPR exhibits...
Author(s): Camille Lagoin, Kirk Baldwin, Loren Pfeiffer, and François DubinWe study dipolar excitons confined at 330 mK in a square electrostatic lattice of a GaAs double quantum well. In the dipolar occupation blockade regime, at 3/2 filling, we evidence that excitons form a face-centered superlattice quantum solid. This phase is realized with high...
Author(s): Xiang Li, Yubing Qian, and Ji ChenAb initio calculation of dielectric response with high-accuracy electronic structure methods is a long-standing problem, for which mean-field approaches are widely used and electron correlations are mostly treated via approximated functionals. Here we employ a neural network wave function ansatz com… [Phys....
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