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In a recent paper [R. Soto-Garrido and E. Mu\~noz, J. Phys. Condens. Matter 30, 195302 (2018)], we studied the electronic transport properties in Weyl semimetals (WSMs) submitted to the combined effects of torsional mechanical strain and…

Mesoscale and Nanoscale Physics · Physics 2018-12-07 Enrique Muñoz , Rodrigo Soto-Garrido

RPdBi (R = Er, Ho, Gd, Dy, Y, Nd) compounds were studied by means of x-ray diffraction, magnetic susceptibility, electrical resistivity, magnetoresistivity, thermoelectric power and Hall effect measurements, performed in the temperature…

Materials Science · Physics 2011-08-01 K. Gofryk , D. Kaczorowski , T. Plackowski , A. Leithe-Jasper , Yu. Grin

We report the electrical resistivity, Hall coefficient, thermoelectric power, specific heat, and thermal conductivity on single crystals of the type-VIII clathrate Ba8Ga16Sn30 grown from Sn-flux. Negative S and R_H over a wide temperature…

Strongly Correlated Electrons · Physics 2009-11-10 D. Huo , T. Sakata , T. Sasakawa , M. A. Avila , M. Tsubota , F. Iga , H. Fukuoka , S. Yamanaka , S. Aoyagi , T. Takabatake

We stabilize resistance of melt-quenched amorphous Ge2Sb2Te5 (a-GST) phase change memory (PCM) line cells by substantially accelerating resistance drift and bringing it to a stop within a few minutes with application of high electric field…

The fundamental aspects of spin-dependent transport processes and their interplay with temperature gradients, as given by the spin Seebeck coefficient, are still largely unexplored and a multitude of contributing factors must be considered.…

Materials Science · Physics 2014-04-23 Roman Kováčik , Phivos Mavropoulos , Daniel Wortmann , Stefan Blügel

The potential of bulk black-phosphorus for thermoelectric applications has been experimentally studied. The Seebeck Coefficient (S) has been measured in the temperature range from 300 K to 385 K, finding a value of S = +335 +- 10 uV/K at…

Within the Coulomb blockade regime, our study delves into the charge, spin, and thermoelectric transport characteristics in a benzene-based molecular nano-junction using the Pauli master equation and linear response theory. The charge- and…

Mesoscale and Nanoscale Physics · Physics 2024-01-17 Parbati Senapati , Prakash Parida

We calculate the charge and heat current associate with electrons, generated by a temperature gradient and chemical potential difference between two ends of a tubular nanowire of 30 nm radius in the presence of an external magnetic field…

Mesoscale and Nanoscale Physics · Physics 2020-12-15 Hadi Rezaie Heris , Movaffaq Kateb , Sigurdur I. Erlingsson , Andrei Manolescu

We study numerically transport and thermoelectric properties of electrons placed in a two-dimensional (2D) periodic potential. Our results show that the transition from sliding to pinned phase takes place at a certain critical amplitude of…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 Mikhail Y. Zakharov , Denis Demidov , Dima L. Shepelyansky

The effects of electronic correlations and orbital degeneracy on thermoelectric properties are studied within the context of multi-orbital Hubbard models on different lattices. We use dynamical mean field theory with iterative perturbation…

Strongly Correlated Electrons · Physics 2015-06-16 Mehdi Kargarian , Gregory A. Fiete

The description of transport phenomena in devices consisting of arrays of tunnel junctions, and the experimental confirmation of these predictions is one of the great successes of mesoscopic physics. The aim of this paper is to give a…

Mesoscale and Nanoscale Physics · Physics 2011-12-16 T. Kuhn , G. S. Paraoanu

By invoking the microscopic response method in conjunction with a reasonable set of approximations, we obtain new explicit expressions for the electrical conductivity and temperature coefficient of resistivity (TCR) in amorphous…

Statistical Mechanics · Physics 2011-12-13 Ming-Liang Zhang , David A. Drabold

We address the fundamental question of crossover from localized to itinerant state of a paradigmatic heavy fermionmaterial CeIrIn5. The temperature evolution of the one electron spectra and the optical conductivity is predicted from first…

Strongly Correlated Electrons · Physics 2009-11-13 J. H. Shim , K. Haule , G. Kotliar

Half Heusler (HH) alloys with 18 valence electron count have attracted significant interest in the area of research related to thermoelectrics. Understanding the novel transport properties exhibited by these systems with semiconducting…

Materials Science · Physics 2022-02-15 Kavita Yadav , Saurabh Singh , Tsunehiro Takeuchi , K. Mukherjee

The Seebeck effect describes the generation of an electric potential in a conducting solid exposed to a temperature gradient. Besides fundamental relevance in solid state physics, it serves as a key quantity to determine the performance of…

Near-room-temperature electronic transport of annealing induced semiconducting crystallites embedded within its amorphous counterpart is treated within the effective-medium approach. As such, the mixtures transport coefficients become…

Mesoscale and Nanoscale Physics · Physics 2019-04-23 David Emin

We study heat transport in a Weyl semimetal with broken time-reversal symmetry in the hydrodynamic regime. At the neutrality point, the longitudinal heat conductivity is governed by the momentum relaxation (elastic) time, while longitudinal…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Yonatan Messica , Pavel M. Ostrovsky , Dmitri B. Gutman

We have conducted temperature and frequency dependent transport measurements in amorphous Nb_x Si_{1-x} samples in the insulating regime. We find a temperature dependent dc conductivity consistent with variable range hopping in a Coulomb…

Strongly Correlated Electrons · Physics 2009-11-07 Erik Helgren , George Grüner , Martin Ciofalo , David V. Baxter , John P. Carini

We study the thermoelectric properties of bulk $MoSe_2$ within relaxation time approximation including electron-phonon and ionized impurity interactions using first-principles calculations at room temperatures. The anisotropy of this…

Materials Science · Physics 2022-08-30 Md Golam Rosul , Mona Zebarjadi

The thermoelectric transport properties of CaMg2Bi2, EuMg2Bi2, and YbMg2Bi2 were characterized between 2 and 650K. As synthesized, the polycrystalline samples are found to have lower p-type carrier concentrations than single-crystalline…

Materials Science · Physics 2012-01-13 A. F. May , M. A. McGuire , J. Ma , O. Delaire , A. Huq , D. J. Singh , W. Cai , H. Wang