Kavli Affiliate: Shenghan Jiang | First 5 Authors: Yixin Ma, Shenghan Jiang, Chao Xu, , | Summary: The quantum spin hall (QSH) phase, also known as the 2D topological insulator, is characterized by protected helical edge modes arising from time reversal symmetry. While initially proposed for band insulators, this phase can also manifest in strongly-correlated […]
Kavli Affiliate: Leon Balents | First 5 Authors: Qingkai Meng, Jianting Dong, Pan Nie, Liangcai Xu, Jinhua Wang | Summary: Whenever the elastic energy of a solid depends on magnetic field, there is a magnetostrictive response. Field-linear magnetostriction implies piezomagnetism and vice versa. Here, we show that Mn$_3$Sn, a non-collinear antiferromanget with Weyl nodes, hosts […]
Kavli Affiliate: Leon Balents | First 5 Authors: Qingkai Meng, Jianting Dong, Pan Nie, Liangcai Xu, Jinhua Wang | Summary: Whenever the elastic energy of a solid depends on magnetic field, there is a magnetostrictive response. Field-linear magnetostriction implies piezomagnetism and vice versa. Here, we show that Mn$_3$Sn, a non-collinear antiferromanget with Weyl nodes, hosts […]
Kavli Affiliate: Bo Gu | First 5 Authors: Jia-Wen Li, Zhen Zhang, Jing-Yang You, Bo Gu, Gang Su | Summary: The two-dimensional (2D) van der Waals ferromagnetic semiconductors, such as CrI$_3$ and Cr$_2$Ge$_2$Te$_6$, and the 2D ferromagnetic metals, such as Fe$_3$GeTe$_2$ and MnSe$_2$, have been obtained in recent experiments and attracted a lot of attentions. […]
Kavli Affiliate: Leon Balents | First 5 Authors: Aleksandar Razpopov, David A. S. Kaib, Steffen Backes, Leon Balents, Stephen D. Wilson | Summary: Motivated by recent reports of a quantum disordered ground state in the triangular lattice compound NaRuO$_2$, we derive a $j_{rm eff}=1/2$ magnetic model for this system by means of first-principles calculations. The […]
Kavli Affiliate: David Gross | First 5 Authors: Laurens T. Ligthart, David Gross, , , | Summary: It is a fundamental but difficult problem to characterize the set of correlations that can be obtained by performing measurements on quantum mechanical systems. The problem is particularly challenging when the preparation procedure for the quantum states is […]
Kavli Affiliate: David Gross | First 5 Authors: Laurens T. Ligthart, David Gross, , , | Summary: It is a fundamental but difficult problem to characterize the set of correlations that can be obtained by performing measurements on quantum mechanical systems. The problem is particularly challenging when the preparation procedure for the quantum states is […]
Kavli Affiliate: Yi Zhou | First 5 Authors: Sheng Wang, Yi Zhou, , , | Summary: In this article, we prove the global well-posedness in the critical Sobolev space $H_{rad}^2left(mathbb{R}^2right) times H_{rad}^1 left(mathbb{R}^2right)$ for the radial time-like extremal hypersurface equation in $left(1+3right)$- dimensional Minkowski space-time. This is achieved by deriving a new div-curl type lemma […]
Kavli Affiliate: Mark J. Bowick | First 5 Authors: Suraj Shankar, Luca V. D. Scharrer, Mark J. Bowick, M. Cristina Marchetti, | Summary: Topological defects play a central role in the physics of many materials, including magnets, superconductors and liquid crystals. In active fluids, defects become autonomous particles that spontaneously propel from internal active stresses […]
Kavli Affiliate: Mark J. Bowick | First 5 Authors: Suraj Shankar, Luca V. D. Scharrer, Mark J. Bowick, M. Cristina Marchetti, | Summary: Topological defects play a central role in the physics of many materials, including magnets, superconductors and liquid crystals. In active fluids, defects become autonomous particles that spontaneously propel from internal active stresses […]