163 citations · 1.3k across the 58 of their papers we have counts for
9 papers · 1 filter
Nonlinear 2D Spin Susceptibility in a Finite Magnetic Field: Spin-Polarization Dependence
Ying Zhang, S. Das Sarma
By theoretically calculating the interacting spin susceptibility of a two-dimensional electron system in the presence of finite spin polarization, we show that the extensively empl…
Exchange instabilities in electron systems: Bloch versus Stoner Ferromagnetism
Ying Zhang, S. Das Sarma
We show that 2D and 3D electron systems with the long-range Coulomb electron-electron interaction could develop ferromagnetic instabilities due to strong exchange effects at low de…
Dispersion Instability in Strongly Interacting Electron Liquids
Ying Zhang, V. M. Yakovenko, S. Das Sarma
We show that the low-density strongly interacting electron liquid, interacting via the long-range Coulomb interaction, could develop a dispersion instability at a critical density…
Density dependent spin susceptibility and effective mass in interacting quasi-two dimensional electron systems
Ying Zhang, S. Das Sarma
Motivated by recent experimental reports, we carry out a Fermi liquid many-body calculation of the interaction induced renormalization of the spin susceptibility and effective mass…
Temperature dependent effective mass renormalization in a Coulomb Fermi liquid
Ying Zhang, S. Das Sarma
We calculate numerically the quasiparticle effective mass (m*) renormalization as a function of temperature and electron density in two- and three-dimensional electron systems with…
Quasiparticle effective mass divergence in two dimensional electron systems
Ying Zhang, S. Das Sarma
Within the infinite series of ring (or bubble) diagram approximation for the electronic self-energy as appropriate for the long-range Coulomb interaction, we calculate the density-…
Competing orders in a magnetic field: spin and charge order in the cuprate superconductors
Ying Zhang, Eugene Demler, Subir Sachdev
We describe two-dimensional quantum spin fluctuations in a superconducting Abrikosov flux lattice induced by a magnetic field applied to a doped Mott insulator. Complete numerical…
Renormalization group analysis of quantum critical points in d-wave superconductors
Matthias Vojta, Ying Zhang, Subir Sachdev
We describe a search for renormalization group fixed points which control a second-order quantum phase transition between a d_{x^2-y^2} superconductor and some other superconductin…
Competing orders and quantum criticality in doped antiferromagnets
Matthias Vojta, Ying Zhang, Subir Sachdev
We use a number of large-N limits to explore the competition between ground states of square lattice doped antiferromagnets which break electromagnetic U(1), time-reversal, or squa…