Phase Diagram of the Low-Density Two-Dimensional Homogeneous Electron Gas

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Phase diagram of the low-density two-dimensional homogeneous electron gas.

We use quantum Monte Carlo methods to calculate the zero-temperature phase diagram of the two-dimensional homogeneous electron gas. We find a transition from a paramagnetic fluid to an antiferromagnetic triangular Wigner crystal at density parameter r(s)=31(1) a.u. and a transition to a ferromagnetic crystal at r(s)=38(5) a.u. The fully spin-polarized fluid is never stable. We search for, but d...

متن کامل

Phase diagram of the two-dimensional lattice Coulomb gas

The nature of phase transitions in the two-dimensional ~2D! neutral Coulomb gas ~CG! has remained a topic of considerable interest. The CG can be related via duality transformation to the 2D XY model, and thus to superfluid and superconducting films. The pioneering work of Kosterlitz and Thouless ~KT! showed that, at low charge density, there is a second order transition from an insulating to a...

متن کامل

Phase diagram of the screened two-dimensional electron crystal

The melting tine of the two-dimenrional cry~tal formed by rurface electrons above liquid helium film5 a d ~ o r k d nn PMMh has hccn mapped out by means ola m~crowave cavity technique a t tcrnpxiturcs above 1 K. The ~nfl uence of the dielectric substrate nn such a transifion ha5 k e n measured af diffcrcnt tcmycraiures and at various hcl~z~rn film thicknesses. The recults are found to be in goo...

متن کامل

Spin polarization of the low-density three-dimensional electron gas.

To determine the state of spin polarization of the three-dimensional electron gas at very low densities and zero temperature, we calculate the energy versus spin polarization using diffusion quantum Monte Carlo methods with backflow wave functions and twist averaged boundary conditions. We find a second-order phase transition to a partially polarized phase at r(s) approximately 50+/-2. The magn...

متن کامل

Two-dimensional Bose gas at low density

We propose a new method to describe the interacting bose gas at zero temperature. For three-dimensional system the correction to the groundstate energy in density is reproduced. For two-dimensional dilute bose gas the groundstate energy in the leading order in the parameter | ln α2ρ|−1 where α is a scattering length is obtained.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2009

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.102.126402