68 citations · 425 across the 24 of their papers we have counts for
21 papers · 1 filter
Spin Splitter without Spin-Split Bands: A Reconfigurable Altermagnetic Texture
Bin Xi, Jie Lu, Qiang Luo +4
The altermagnetic spin-splitter effect converts an electric field into a transverse pure spin current, with no net magnetization and no charge-Hall counterpart. In established mate…
Crossover and Changeover in Spin-1 Kitaev- Chain with Uniaxial Single-ion Anisotropy
Qiang Luo, Shijie Hu, Wang Yang +4
Recent advances in bond-directional spin chains have revealed extensive emergent phenomena and unconventional criticality. Here we investigate the spin-1 Kitaev- chain with unia…
Beyond-adiabatic flat Chern bands from a double-helix skyrmion crystal
Bin Xi, Ken Chen, Qiang Luo +4
A central challenge in flat-band engineering is suppressing kinetic energy without sacrificing Berry curvature. We show that a double-helix skyrmion crystal (DHSKX)--two sublattice…
Successive topological phase transitions in two distinct spin-flop phases on the honeycomb lattice
Xudong Li, Jize Zhao, Jinbin Li +1
The Kitaev magnets with bond-dependent interactions have garnered considerable attention in recent years for their ability to harbor exotic phases and nontrivial excitations. The t…
Chiral spin state and nematic ferromagnet in the spin-1 Kitaev- model
Qiang Luo, Jize Zhao, Jinbin Li +1
The higher-spin Kitaev magnets, in which the Kitaev interaction and off-diagonal exchange couplings are overwhelmingly large, have emerged as a fertile avenue to explore exotic pha…
Topological phase transitions and thermal Hall effect in a noncollinear spin texture
Ken Chen, Qiang Luo, Bin Xi +2
The noncollinear spin textures provide promising avenues to stabilize exotic magnetic phases and excitations. They have attracted vast attention owning to their nontrivial band top…
Beyond Kitaev physics in strong spin-orbit coupled magnets
Ioannis Rousochatzakis, Natalia B. Perkins, Qiang Luo +1
We review the recent advances and current challenges in the field of strong spin-orbit coupled Kitaev materials, with a particular emphasis on the physics beyond the exactly-solvab…
Spontaneous dimerization, spin-nematic order, and deconfined quantum critical point in a spin-1 Kitaev chain with tunable single-ion anisotropy
Qiang Luo, Shijie Hu, Jinbin Li +3
The Kitaev-type spin chains have been demonstrated to be fertile playgrounds in which exotic phases and unconventional phase transitions are ready to appear. In this work, we use t…
Evidence of Kitaev interaction in the monolayer 1T-CrTe
Can Huang, Bingjie Liu, LingZi Jiang +6
The two-dimensional 1T-CrTe has been an attractive room-temperature van der Waals magnet which has a potential application in spintronic devices. Although it was recognized as…
Interplay of magnetic field and trigonal distortion in the honeycomb model: Occurrence of a spin-flop phase
Qiang Luo, Hae-Young Kee
In candidate Kitaev materials, the off-diagonal and interactions are identified to come from the spin-orbit coupling and trigonal distortion, respectively. They have gener…
Analytical results for the unusual Grüneisen ratio in the quantum Ising model with Dzyaloshinskii-Moriya interaction
Qiang Luo
The Grüneisen ratio (GR) has emerged as a superb tool for the diagnosis of quantum phase transitions, which diverges algebraically upon approaching critical points of continuous ph…
Strain-induced phase diagram of the Kitaev material
Zongsheng Zhou, Ken Chen, Qiang Luo +2
The interplay among anisotropic magnetic terms, such as the bond-dependent Kitaev interactions and single-ion anisotropy, plays a key role in stabilizing the finite-temperature fer…
Extent of frustration in the classical Kitaev- model via bond anisotropy
Ahmed Rayyan, Qiang Luo, Hae-Young Kee
In the pseudospin- honeycomb Mott insulators with strong spin-orbit coupling, there are two types of bond-dependent exchange interactions, named Kitaev () and ,…
Unusual excitations and double-peak specific heat in a bond-alternating spin- - chain
Qiang Luo, Shijie Hu, Hae-Young Kee
One-dimensional gapped phases that avoid any symmetry breaking have drawn enduring attention. In this paper, we study such phases in a bond-alternating spin-1 - chain built o…
Unveiling the phase diagram of a bond-alternating spin- - chain
Qiang Luo, Jize Zhao, Xiaoqun Wang +1
The key to unraveling intriguing phenomena observed in various Kitaev materials lies in understanding the interplay of Kitaev () interaction and a symmetric off-diagonal int…
Spontaneous Chiral-Spin Ordering in Spin-Orbit Coupled Honeycomb Magnets
Qiang Luo, P. Peter Stavropoulos, Jacob S. Gordon +1
Frustrated magnets with highly degenerate ground states are at the heart of hunting exotic states of matter. Recent studies in spin-orbit coupled honeycomb magnets have generated i…
Gapless quantum spin liquid in a honeycomb magnet
Qiang Luo, Jize Zhao, Hae-Young Kee +1
A family of spin-orbit coupled honeycomb Mott insulators offers a playground to search for quantum spin liquids (QSLs) via bond-dependent interactions. In candidate materials, a sy…
Intrinsic Jump Character of the First-Order Quantum Phase Transitions
Qiang Luo, Jize Zhao, Xiaoqun Wang
We find that the first-order quantum phase transitions~(QPTs) are characterized by intrinsic jumps of relevant operators while the continuous ones are not. Based on such an observa…
Ground-state phase diagram of the frustrated spin-1/2 two-leg honeycomb ladder
Qiang Luo, Shijie Hu, Jize Zhao +3
We investigate a spin- two-leg honeycomb ladder with frustrating next-nearest-neighbor (NNN) coupling along the legs, which is equivalent to two - spin chains couple…
Ground-state phase diagram of an anisotropic spin- model on the triangular lattice
Qiang Luo, Shijie Hu, Bin Xi +2
Motivated by the recent experiment on a rare-earth material YbMgGaO [Y. Li \textit{et al.}, Phys. Rev. Lett. \textbf{115}, 167203 (2015)], which found that the ground state of…
Thermodynamics of a spin-1/2 XYZ Heisenberg chain with a Dzyaloshinskii-Moriya interaction
Bin Xi, Shijie Hu, Qiang Luo +2
We study the thermodynamics of an XYZ Heisenberg chain with Dzyaloshinskii-Moriya interaction, which describes the low-energy behaviors of a one-dimensional spin-orbit-coupled boso…