- The Magnetic Genome of Two-Dimensional van der Waals.
- A synoptic review of MoS2: Synthesis to... - ScienceDirect.
- Phase diagram of a uniform two-dimensional Fermi gas with spin-orbit.
- Coexistence of topological and nontopological Fermi-superfluid phases.
- Simulating Chiral Magnetic and Separation Effects with Spin-Orbit.
- [PDF] Coexistence of topological and nontopological Fermi-superfluid.
- Bandgap engineering of two-dimensional semiconductor.
- Dynamical phases in quenched spin-orbit-coupled degenerate Fermi gas.
- Accurate projective two-band description of topological superfluidity.
- BCS-BEC crossover in 2D Fermi gases with Rashba spin-orbit coupling.
- Topological Fulde-Ferrel-Larkin-Ovchinnikov states in Spin-orbit.
- All topological bands of all nonmagnetic stoichiometric materials.
- Browse Articles | Nature Materials.
The Magnetic Genome of Two-Dimensional van der Waals.
The above two obstacles can be overcome using spin-orbit (SO) coupled degenerate Fermi gases with an in-plane Zeeman field. SO coupling is essential for many important phenomena in condensed matter. Coexistence of topological and nontopological Fermi-superfluid phases Abstract The two-dimensional spin-imbalanced Fermi gas subject to s -wave pairing and spin-orbit coupling is considered a promising platform for realizing a topological chiral- p -wave superfluid.
A synoptic review of MoS2: Synthesis to... - ScienceDirect.
The control and manipulation of spins in graphene may lead to a number of novel applications and to the design of new devices, such as spin-based memories 217 or spin logic chips. 218 Graphene is uniquely suitable for such applications, since it does not show sizeable spin–orbit coupling, 74 and is almost free of nuclear magnetic moments. 219.
Phase diagram of a uniform two-dimensional Fermi gas with spin-orbit.
Reflection spectroscopy showed two peaks namely A1 and B1 at 670 nm and 627 nm respectively, where-in the energy difference exists due to splitting of VBM at K point. Split in the peaks for multi layered MoS 2 can be attributed to combination of spin-orbit coupling and interlayer coupling. While single layer is due to spin-orbit coupling. For Co-intercalated SnS 2, the strong coupling hybridization among d orbitals of Co atoms, s orbitals of Sn atoms, and p orbitals of S atoms imports plenty of hybridized states around the Fermi. Dirac cones in transition metal trichalcogenides: effects of spin-orbit coupling and electron correlations, Y. Sugita, T. Miyake, and Y. Motome; Persistent spin helix and beyond in a Kondo lattice model with Rashba-Dresselhaus spin-orbit coupling, K. Okada, R. Ozawa, Y. Kato, and Y. Motome.
Coexistence of topological and nontopological Fermi-superfluid phases.
Fermi gases en route to clarifying some crucial issues for the experimental observation of MFs in such systems. Our main results are the following. (i) We show that, quite unexpectedly, the SO coupling reduces both T vortex and T BKT, despite enhancing the superfluid order parameter. (ii) In the pseudogap phase (T>T BKT), the Fermi gas lacks. Shaolong Wan University of Science and Technology of China Abstract We investigate the ground state of the two-dimensional polarized Fermi gas with spin-orbit coupling and construct the phase.
Simulating Chiral Magnetic and Separation Effects with Spin-Orbit.
Here, by doping equimolar Zr, Hf and Sn into Bi 4 Ti 3 O 12 thin films, a high-entropy stabilized Bi 2 Ti 2 O 7 pyrochlore phase forms with an energy density of 182 J cm −3 and 78% efficiency.
[PDF] Coexistence of topological and nontopological Fermi-superfluid.
A topological FFLO state can be stabilized in a two-dimensional Fermi gas with Rashba spin-orbit coupling and both in-plane and out-of-plane Zeeman elds. We characterize the topological FFLO state by a non-trivial Berry phase, and demonstrate the stability region of the state on the zero- temperature phase diagram.
Bandgap engineering of two-dimensional semiconductor.
Very recently, the Rashba spin-orbit coupling in a two-dimensional (2D) repulsive Fermi gas has been investigated in [23,24], where the density of states is quite simple and analytical results can. This T-breaking 2D quantum Hall topological phase is... Bianisotropy acts on photons in a similar way to how spin-orbit coupling... Shindou, R., Matsumoto, R. & Murakami, S. Topological chiral.
Dynamical phases in quenched spin-orbit-coupled degenerate Fermi gas.
Recent experimental breakthrough in realizing spin-orbit (SO) coupling for cold atoms has spurred considerable interest in the physics of 2D SO coupled Fermi superfluids, especially topological Majorana fermions (MFs) which were predicted to exist at zero temperature. However, it is well known that long-range superfluid order is destroyed in 2D by the phase fluctuation at finite temperature. Anomalous dynamical phase in quantum spin chains with long-range interactions Phys. Rev. B 96, 104436 (2017) abstract pdf; J. C. Halimeh and V. Zauner-Stauber: Dynamical phase diagram of spin chains with long-range interactions Phys. Rev. B 96, 134427 (2017) abstract pdf; J. Herbrych, A. Feiguin, E. Dagotto and F. Heidrich-Meisner.
Accurate projective two-band description of topological superfluidity.
Topological Fermi superfluids have played the central role in various fields of physics. However, all previous studies focus on the cases where Cooper pairs have zero center-of-mass momenta (i.e. normal superfluids). The topology of Fulde-Ferrell superfluids with nonzero momentum pairings have never been explored until recent findings that Fulde-Ferrell superfluids in a spin-orbit coupled. For a 2D Fermi gas without SOC, a temperature of T ~0.27 TF has recently been reported 48. With these, it is reasonable to expect that the tFF state can be prepared and probed in future.
BCS-BEC crossover in 2D Fermi gases with Rashba spin-orbit coupling.
Two-dimensional spin-orbit-coupled Fermi gases subject to s-wave pairing can be driven into a topological phase by increasing the Zeeman spin splitting beyond a critical value. In the topological regime, the system exhibits the hallmarks of chiral p-wave superfluidity, including exotic Majorana excitations. Previous theoretical studies of this realization of a two-dimensional topological Fermi. In this article, we study the quench dynamics and topological edge states in a spin-orbit (SO)-coupled superfluid Fermi gas in two dimensions (2D), motivated by the very recent realization of SO.
Topological Fulde-Ferrel-Larkin-Ovchinnikov states in Spin-orbit.
We would like to show you a description here but the site won’t allow us. Freestanding single-crystalline AlGaN/GaN two-dimensional electron gas heterostructure membranes are created from 8 in. foundry manufacturable AlGaN/GaN on insulator substrates. Based on the unconventional release strategy, we have demonstrated AlGaN/GaN-based flexible interdigitated photodetectors with ultrahigh performance. The device also exhibits significant piezo-phototronic behavior.
All topological bands of all nonmagnetic stoichiometric materials.
Weyl points usually arise when two bands of spin-polarized bands cross in semimetals. The challenge of realizing practical devices with topological semimetals is that their high carrier density makes it difficult to modulate the position of their Fermi level (E F) and chiral anomaly current, which also results in high static power consumption. The underlying physical reason for the persistence of the chiral p-wave super uid. I. INTRODUCTION AND OVERVIEW OF MAIN RESULTS One of the earliest proposed pathways towards real-ization of a twodimensional (2D) topological super uid (TSF) [1] is based on s-wave pairing of spin-1 2 fermions subject to spin-orbit coupling and Zeeman spin split. Yin the uniform topological-superfluid phase of a 2D Fermi gas withspin-orbitcoupling k (kxi ky)andZeemansplittingh. Inpanel(a), thedashedblue (red) curves are the spin-"(spin-#) dispersions in the absence ofs-wave pairing ( = 0) and spin-orbit coupling ( = 0) but with large Zeeman splittingh= 2E0. A finite couples spin-".
Browse Articles | Nature Materials.
The topological phasetransition between different phases can be accompaniedwith the band gap closing at (up to 2) points with cu-bic band touching through pairing and indirect spin cou-pling, yielding the largest Chern number change 6.
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