Anomalous Hall conductivity and quantum friction

Author(s): Pavel Středa and Karel VýbornýThe anomalous Hall effect in high conductivity region is studied using a two-dimensional network model. We find that the off-diagonal conductivity comprises two parts: one which reflects the bulk properties as obtained by the Kubo formula and another which is sensitive to boundary conditions imposed…[Phys. Rev....

20h

$GW+\mathrm{EDMFT}$ investigation of ${\mathrm{Pr}}_{1−x}{\mathrm{Sr}}_{x}{\mathrm{NiO}}_{2}$ under pressure

Author(s): Viktor Christiansson, Francesco Petocchi, and Philipp WernerMotivated by the recent experimental observation of a large pressure effect on Tc in Pr1−xSrxNiO2, we study the electronic properties of this compound as a function of pressure for x=0 and 0.2 doping using self-consistent GW+EDMFT. Our numerical results demonstrate a nontrivial interplay...

21h

Monte Carlo simulation of the nuclear spin decoherence process in ${\mathrm{Eu}}^{3+}$:${\mathrm{Y}}_{2}{\mathrm{SiO}}_{5}$ crystals

Author(s): You-Zhi Ma, You-Cai Lv, Tian-Shu Yang, Yu Ma, Zong-Quan Zhou, Chuan-Feng Li, and Guang-Can GuoEu3+:Y2SiO5 crystals are promising candidates for quantum memories because their nuclear spin coherence lifetime can be extended to 47 seconds at a particular magnetic field. Although an extended coherence lifetime of 6 hours can be achieved with...

21h

Dimension-dependent magnetic anisotropy for tunable anomalous Hall effect in transition metal dichalcogenides

Author(s): Shilei Ji, Yile Wang, Ruijia Yao, Chuye Quan, Jianping Yang, and Xing'ao LiTwo-dimensional (2D) ferromagnetism at room temperature is highly desired in spintronic devices and applications. Recently, CrTe2 film has been successfully synthesized. Bulk CrTe2 has in-plane magnetic anisotropy (MA), and the Curie temperature reaches up to 300 K....

21h

Coexistence of random singlets and disordered Kitaev spin liquid in ${\mathrm{H}}_{3}{\mathrm{LiIr}}_{2}{\mathrm{O}}_{6}$

Author(s): Chanhyeon Lee, Suheon Lee, Youngsu Choi, C. Wang, H. Luetkens, T. Shiroka, Zeehoon Jang, Young-Gui Yoon, and Kwang-Yong ChoiWe combine static magnetic susceptibility χ(T), muon-spin relaxation, and H1 nuclear magnetic resonance measurements to explore the spin dynamics in the disordered-induced quantum spin liquid candidate H3LiIr2O6. Inverse...

21h

Observation of flat-band localization and topological edge states induced by effective strong interactions in electrical circuit networks

Author(s): Xiaoqi Zhou, Weixuan Zhang, Houjun Sun, and Xiangdong ZhangFlat-band topologies and localizations in noninteracting systems are extensively studied in different quantum and classical-wave systems. Recently, the exploration on the novel physics of flat-band localizations and topologies in interacting systems has aroused great interest. In...

21h

Detrimental effects of disorder in two-dimensional time-reversal invariant topological superconductors

Author(s): Mahdi Mashkoori, Fariborz Parhizgar, Stephan Rachel, and Annica M. Black-SchafferThe robustness against local perturbations, as long as the symmetry of the system is preserved, is a distinctive feature of topological quantum states. Magnetic impurities and defects break time-reversal invariance and, consequently, time-reversal invariant (TRI)...

21h

Observation of spin-polarized surface states in the nodal-line semimetal ${\mathrm{SnTaS}}_{2}$

Author(s): Chunyao Song, Lulu Liu, Shengtao Cui, Jingjing Gao, Pengbo Song, Lei Jin, Wenjuan Zhao, Zhe Sun, Xiaoming Zhang, Lin Zhao, Xuan Luo, Yuping Sun, Youguo Shi, Haijun Zhang, Guodong Liu, and X. J. ZhouThe superconductor SnTaS2 is theoretically predicted to be an intriguing topological nodal line semimetal without consideration of spin-orbit...

21h

Probing many-body localization by excited-state variational quantum eigensolver

Author(s): Shuo Liu, Shi-Xin Zhang, Chang-Yu Hsieh, Shengyu Zhang, and Hong YaoNonequilibrium physics including many-body localization (MBL) has attracted increasing attentions, but theoretical approaches of reliably studying nonequilibrium properties remain quite limited. In this Letter, we propose a systematic approach to probe MBL phases via the...

21h

Delocalization of topological surface states by diagonal disorder in nodal loop semimetals

Author(s): João S. Silva, Miguel A. N. Araújo, Miguel Gonçalves, Pedro Ribeiro, and Eduardo V. CastroThe effect of Anderson diagonal disorder on the topological surface (drumhead) states of a Weyl nodal loop semimetal (SM) is addressed. Since diagonal disorder breaks chiral symmetry, a winding number cannot be defined. Seen as a perturbation, the weak...

21h