Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Zhu, Zhenyue"'
Publikováno v:
Phys. Rev. X 9, 021017 (2019). Erratum: Phys. Rev. X 12, 019902 (2022)
We present an extensive overview of the phase diagram, spin-wave excitations, and finite-temperature transitions of the anisotropic-exchange magnets on an ideal nearest-neighbor triangular lattice. We investigate transitions between five principal cl
Externí odkaz:
http://arxiv.org/abs/1811.05983
Publikováno v:
Phys. Rev. Lett. 120, 207203 (2018)
Spin systems with frustrated anisotropic interactions are of significant interest due to possible exotic ground states. We have explored their phase diagram on a nearest-neighbor triangular lattice using the density-matrix renormalization group and m
Externí odkaz:
http://arxiv.org/abs/1801.01130
The density matrix renormalization group is one of the most powerful numerical methods for computing ground-state properties of two-dimensional (2D) quantum lattice systems. Here we show its finite-temperature extensions are also viable for 2D, using
Externí odkaz:
http://arxiv.org/abs/1705.05578
Publikováno v:
Phys. Rev. Lett. 119, 157201 (2017)
We suggest that a randomization of the pseudo-dipolar interaction in the spin-orbit-generated low-energy Hamiltonian of YbMgGaO$_4$ due to an inhomogeneous charge environment from a natural mixing of Mg$^{2+}$ and Ga$^{3+}$ can give rise to orientati
Externí odkaz:
http://arxiv.org/abs/1703.02971
Publikováno v:
Phys. Rev. Lett. 116, 197203 (2016)
The anyonic excitations of a spin-liquid can feature fractional quantum numbers under space-group symmetries. Detecting these fractional quantum numbers, which are analogs of the fractional charge of Laughlin quasiparticles, may prove easier than the
Externí odkaz:
http://arxiv.org/abs/1511.01510
Autor:
LeBlanc, J. P. F., Antipov, Andrey E., Becca, Federico, Bulik, Ireneusz W., Chan, Garnet Kin-Lic, Chung, Chia-Min, Deng, Youjin, Ferrero, Michel, Henderson, Thomas M., Jiménez-Hoyos, Carlos A., Kozik, E., Liu, Xuan-Wen, Millis, Andrew J., Prokof'ev, N. V., Qin, Mingpu, Scuseria, Gustavo E., Shi, Hao, Svistunov, B. V., Tocchio, Luca F., Tupitsyn, I. S., White, Steven R., Zhang, Shiwei, Zheng, Bo-Xiao, Zhu, Zhenyue, Gull, Emanuel
Publikováno v:
Phys. Rev. X 5, 041041 (2015)
Numerical results for ground state and excited state properties (energies, double occupancies, and Matsubara-axis self energies) of the single-orbital Hubbard model on a two-dimensional square lattice are presented, in order to provide an assessment
Externí odkaz:
http://arxiv.org/abs/1505.02290
Autor:
Zhu, Zhenyue, White, Steven R.
Publikováno v:
Phys. Rev. B 92, 041105(R), 2015
We study the $S=1/2$ Heisenberg model on the triangular lattice with nearest neighbor interaction $J_1$ and next nearest neighbor interaction $J_2$ with the density matrix renormalization group. We are able to study long open cylinders with widths up
Externí odkaz:
http://arxiv.org/abs/1502.04831
Autor:
Zhu, Zhenyue, White, Steven R.
Publikováno v:
Mod. Phys. Lett. B, Vol. 28, No. 31 (2014) 1430016
Searching for spin liquid states has long been attracting both experimentalists and theorists. In this article, we review recent density matrix renormalization group studies of the spin-1/2 XY model on the honeycomb lattice, with first-neighbor ($J_1
Externí odkaz:
http://arxiv.org/abs/1412.4263
Autor:
Zhu, Zhenyue
Thesis (M. S.)--Oklahoma State University, 2007.
Vita. Includes bibliographical references.
Vita. Includes bibliographical references.
Externí odkaz:
http://digital.library.okstate.edu/etd/umi-okstate-2334.pdf
Chern Half Metals: A New Class of Topological Materials to Realize the Quantum Anomalous Hall Effect
Publikováno v:
Nano Lett., 2015, 15 (3), pp 2074-2078
The search of new topological insulators that demonstrate the quantum anomalous Hall effect (QAHE) is a cutting-edge research topic in condensed matter physics and materials science. So far, the QAHE has been observed only in Cr-doped (Bi,Sb)2Te3 at
Externí odkaz:
http://arxiv.org/abs/1401.5453