Results 1 to 10 of about 551,694 (368)

Acoustic higher-order topological insulator on a kagome lattice [PDF]

open access: greenNature Materials, 2018
Higher-order topological insulators1–5 are a family of recently predicted topological phases of matter that obey an extended topological bulk–boundary correspondence principle.
Haoran Xue, Fei Gao, Yidong Chong
exaly   +3 more sources

Room temperature electrically pumped topological insulator lasers [PDF]

open access: yesNature Communications, 2021
Topological insulator lasers offer robustness and efficiency due to their unique properties but usually require cryogenic temperatures or optical pumping.
Jae-Hyuck Choi   +6 more
doaj   +2 more sources

Hinge solitons in three-dimensional second-order topological insulators

open access: yesNew Journal of Physics, 2020
Higher-order topological insulators have recently witnessed rapid progress in various fields ranging from condensed matter physics to electric circuits.
Yu-Liang Tao   +4 more
doaj   +2 more sources

Mapping rules from nodal line semimetal to topological crystalline insulator in face centered cubic lattice

open access: yesPhysical Review Research, 2020
We study what kind of topological crystalline insulator phase emerges from nodal line semimetal phases in the face centered cubic system, which is not indicated by topological indices when spin-orbit coupling (SOC) is introduced.
Ikuma Tateishi
doaj   +2 more sources

Current-induced switching of proximity-induced ferromagnetic surface states in a topological insulator

open access: yesNature Communications, 2021
Electrical manipulation of magnetization in devices made of topological materials may be an essential route towards future spintronics technology. Here, Mogi et al.
Masataka Mogi   +9 more
doaj   +2 more sources

Measurement of a Topological Edge Invariant in a Microwave Network

open access: yesPhysical Review X, 2015
We report on the measurement of topological invariants in an electromagnetic topological insulator analog formed by a microwave network, consisting of the winding numbers of scattering matrix eigenvalues.
Wenchao Hu   +5 more
doaj   +3 more sources

Impact of barrier width on topological insulator phase in InN/InGaN quantum wells with moderate strain [PDF]

open access: yesScientific Reports
We present a theoretical study demonstrating that in InN/InGaN quantum wells, the topological insulator phase depends largely not only on the quantum well width, but also on the width of the barriers. We show that for structures with a large width of the
S. P. Łepkowski
doaj   +2 more sources

Time-Reversal Symmetric U(1) Quantum Spin Liquids [PDF]

open access: yesPhysical Review X, 2016
We study possible quantum U(1) spin liquids in three dimensions with time-reversal symmetry. We find a total of seven families of such U(1) spin liquids, distinguished by the properties of their emergent electric or magnetic charges.
Chong Wang, T. Senthil
doaj   +4 more sources

Realization of a one-dimensional topological insulator in ultrathin germanene nanoribbons [PDF]

open access: yesNature Communications
Realizing a one-dimensional (1D) topological insulator and identifying the lower-dimensional limit of two-dimensional (2D) behavior are crucial steps toward developing high-density quantum state networks, advancing topological quantum computing, and ...
Dennis J. Klaassen   +11 more
doaj   +2 more sources

Zeeman-field-induced valley-dependent topological phase transitions on the surface of a topological crystalline insulator SnTe

open access: goldNew Journal of Physics, 2016
Mirror-symmetric (001) surfaces of a topological crystalline insulator SnTe host an even number of Dirac cone structures of surface states. A Zeeman field generically gaps the surface states, leading to a 2D topological insulator.
Wei Luo, W Y Deng, L Sheng
doaj   +2 more sources

Home - About - Disclaimer - Privacy