نتایج جستجو برای: extended nernst

تعداد نتایج: 221528  

2017
Asaph Zylbertal Yosef Yarom Shlomo Wagner

Changes in intracellular Na+ concentration ([Na+]i) are rarely taken into account when neuronal activity is examined. As opposed to Ca2+, [Na+]i dynamics are strongly affected by longitudinal diffusion, and therefore they are governed by the morphological structure of the neurons, in addition to the localization of influx and efflux mechanisms. Here, we examined [Na+]i dynamics and their effect...

2004
Hamza Balci Richard L. Greene Bryan Eichhorn Christopher J. Lobb

Title of Dissertation: SPECIFIC HEAT AND NERNST EFFECT OF ELECTRON-DOPED CUPRATE SUPERCONDUCTORS Hamza Balci, Doctor of Philosophy, 2004 Dissertation directed by: Professor Richard L. Greene Department of Physics This thesis consists of two separate studies on Pr2−xCexCuO4 (PCCO), a member of the electron-doped high temperature cuprate superconductor family: specific heat and the Nernst effect....

Journal: :Physical review letters 2012
H Schultheiss J E Pearson S D Bader A Hoffmann

We report on the thermoelectric detection of spin waves in Permalloy stripes via the anomalous Nernst effect. Spin waves are locally excited by a dynamic magnetic field generated from a microwave current flowing in a coplanar waveguide placed on top of a Permalloy stripe, which acts as a waveguide for spin waves. Electric contacts at the ends of the Permalloy stripe measure a dc voltage generat...

2015
Sylvain D. Brechet Jean-Philippe Ansermet J.-P. Ansermet

The thermodynamics of irreversible processes in continuous media predicts the existence of a magnetic Nernst effect that results from a magnetic analog to the Seebeck effect in a ferromagnet and magnetophoresis occurring in a paramagnetic electrode in contact with the ferromagnet. Thus, a voltage that has DC and AC components is expected across a Pt electrode as a response to the inhomogeneous ...

Journal: :Science 1898

Journal: :Physical Review Letters 2023

We describe the direct measurement of expulsion a magnetic field from plasma driven by heat flow. Using laser to column gas within an applied field, we isolate Nernst advection and show how it changes over nanosecond timescale. Reconstruction map proton radiographs demonstrates that is advected flow in advance expansion with velocity ${v}_{N}=(6\ifmmode\pm\else\textpm\fi{}2)\ifmmode\times\else\...

Journal: :physical chemistry research 2015
maryam hosseini bahram ghalami-choobar mohammad ali zanjanchi

in this work, the results concerning to the mean activity coefficient measurements for nacl in the (glycerol + water) system using the potentiometric method are reported. the potentiometric measurements were performed on the galvanic cells without liquid junction of the type: ag|agcl|nacl (m), glycerol (wt%), h2o (1 - wt)%|na-ise, in various mixed solvent systems containing 0, 5, 10, 20 and 30 ...

2007
Mordecai B. Rubin

In his 1884 book on the principles of mobile equilibria, van’t Hoff (2) presented the generalization that, in an equilibrium system, an elevation of temperature would favor the endothermic reaction. Twenty years later, Nernst, as part of his efforts in developing the third law of thermodynamics (3), derived an expression for calculating the equilibrium constant for a reaction at any temperature...

Journal: :Nature 2009
Olivier Cyr-Choinière R Daou Francis Laliberté David LeBoeuf Nicolas Doiron-Leyraud J Chang J-Q Yan J-G Cheng J-S Zhou J B Goodenough S Pyon T Takayama H Takagi Y Tanaka Louis Taillefer

The Nernst effect in metals is highly sensitive to two kinds of phase transition: superconductivity and density-wave order. The large, positive Nernst signal observed in hole-doped high-T(c) superconductors above their transition temperature (T(c)) has so far been attributed to fluctuating superconductivity. Here we report that in some of these materials the large Nernst signal is in fact the r...

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