Thermoelectrics Near the Mott Localization–Delocalization Transition

نویسندگان

  • K. Haule
  • G. Kotliar
چکیده

Density functional theory based approaches give reliable estimates of the total energy, and are an excellent starting point for computing excited state properties of weakly correlated electron systems. These approaches allows the evaluation of transport coefficients using very limited, or no empirical information, and are beginning to be used in conjunction with data mining techniques and combinatorial searches.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Mott Transition and F Electron Physics

The Mott transition, namely the metal–insulator transition (MIT) driven by electron–electron interactions, is a fascinating phenomenon realized experimentally in many compounds such as V2O3 and Ni(Se,S)2. It was suggested many years ago by Johansson that the Mott transition concept is also relevant to elements in the lanthanide and actinide series. The development of dynamical mean–field method...

متن کامل

Effective low-energy model for f-electron delocalization.

We consider a periodic Anderson model (PAM) with a momentum-dependent interband hybridization that is strongly suppressed near the Fermi level. Under these conditions, we reduce the PAM to an effective low-energy Hamiltonian, H(eff), by expanding in the small parameter V0/t (V0 is the maximum interband hybridization amplitude and t is the hopping integral of the broadband). The resulting model ...

متن کامل

Magnetic-field-induced Mott transition in a quasi-two-dimensional organic conductor.

We investigated the effect of magnetic field on the highly correlated metal near the Mott transition in the quasi-two-dimensional layered organic conductor, kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl, by the resistance measurements under control of temperature, pressure, and magnetic field. It was demonstrated that the marginal metallic phase near the Mott transition is susceptible to the field-induced ...

متن کامل

Delocalization and conductance quantization in one-dimensional systems

We investigate the delocalization and conductance quantization in finite onedimensional chains with only off-diagonal disorder coupled to leads. It is shown that the appearence of delocalized states at the middle of the band under correlated disorder is strongly dependent upon the even-odd parity of the number of sites in the system. In samples with inversion symmetry the conductance equals 2e/...

متن کامل

Observation of a Structurally-Driven Mott Transition

We report a first-order structurally-driven Mott transition a t T=357 K in single crystal Ca2RuO4, an isomorph to the superconductor Sr2RuO4. A discontinuous jump in electrical resistivity with a concomitant change in magnetic moment is triggered by a pronounced structural transition from a high temperature tetragonal phase to a low temperature orthorhombic phase. We argue that t h e elastic en...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009