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Magnetic and thermal properties of Ferromagnetic (FM) Ce_{2.15}(Pd_{1-x}Ag_x)_{1.95}In_{0.9} alloys were studied in order to determine the Quantum Critical Point (QCP) at T_C => 0. The increase of band electrons produced by Pd/Ag…

Strongly Correlated Electrons · Physics 2015-07-17 J. G. Sereni , M. Giovannini , M. Gomez Berisso , F. Gastaldo

We investigate the thermoelectric properties of PbTe doped with a small concentration $x$ of Tl impurities acting as acceptors and described by Anderson impurities with negative on-site (effective) interaction. The resulting charge Kondo…

Strongly Correlated Electrons · Physics 2013-04-11 T. A. Costi , V. Zlatić

A theory of strongly correlated electron or hole liquids with the fermion condensate is presented and applied to the consideration of quasiparticle excitations in high temperature superconductors, in their superconducting and normal states.…

Strongly Correlated Electrons · Physics 2007-05-23 V. R. Shaginyan

We report the effect on the superconducting transition temperature (Tc) of a Nb film proximity coupled to the synthetic antiferromagnet Fe/{Cr/Fe}_(N-1). We find that there is a parity dependence of Tc on the total number of Fe layers, N;…

Superconductivity · Physics 2008-08-04 J. W. A. Robinson , Gabor Halasz , M. G. Blamire

LaCrGe$_3$ has attracted attention as a potential candidate for studies of quantum phase transitions in a ferromagnetic material. The application of pressure avoids a quantum critical point by developing a new magnetic phase. It was…

Strongly Correlated Electrons · Physics 2024-11-12 E. H. Krenkel , M. A. Tanatar , M. Konczykowski , R. Grasset , Lin-Lin Wang , S. L. Bud'ko , P. C. Canfield , R. Prozorov

We studied the temperature dependence of resistivity in a single crystalline Nd2Fe14B using a newly developed high temperature probe. This novel probe uses mechanical pin connectors instead of conducting glue/paste. From warming and cooling…

Materials Science · Physics 2022-02-22 Kyuil Cho , S. L. Bud'ko , P. C. Canfield

Typically, Hall coefficient of materials near magnetic instabilities exhibits pronounced temperature dependence. To explore the reasons involved, we studied the temperature dependence of Hall coefficient in $Cr_{1-x}V_x$, $V_{2-y}O_3$ and…

Strongly Correlated Electrons · Physics 2024-07-08 Jalaja Pandya , Navinder Singh

Extensive Monte Carlo simulations and scaling arguments are used to study the colloidal charge reversal. The critical colloidal surface charge density $\sigma_c$ at which the reversal first appears is found to depend strongly on the ionic…

Soft Condensed Matter · Physics 2008-10-03 Alexandre Diehl , Yan Levin

We have studied the temperature effect on collective excitations in biased bilayer graphene within random-phase approximation. From the zeros of temperature dynamical dielectric function of the system we have found one weakly damped plasmon…

Mesoscale and Nanoscale Physics · Physics 2021-03-09 Nguyen Van Men , Nguyen Quoc Khanh , Dong Thi Kim Phuong

We examine possibility of enhancement of superconductive critical temperature in two-dimensions. The weak coupling BCS theory is applied, especially when the Fermi level is near the edges of the electronic bands. The attractive interaction…

Superconductivity · Physics 2015-06-24 Mahito Kohmoto , Iksoo Chang , Jacques Friedel

The Curie temperature TC is investigated as a function of the hole concentration p in thin films of ferromagnetic semiconductor (Ga,Mn)As. The magnetic properties are probed by transport measurements and p is varied by the application of an…

Materials Science · Physics 2015-05-18 Y. Nishitani , D. Chiba , M. Endo , M. Sawicki , F. Matsukura , T. Dietl , H. Ohno

Within the framework of the Drude dispersive model, we predict an unusual non-monotonous temperature dependence of the Casimir force for thin metal films. For certain conditions, this force decreases with temperature due to the decrease of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 V. A. Yampol'skii , Sergey Savel'ev , Z. A. Mayselis , S. S. Apostolov , Franco Nori

Heat-to-charge conversion efficiency of thermoelectric materials is closely linked to the entropy per charge carrier. Thus, magnetic materials are promising building blocks for highly efficient energy harvesters, as their carrier entropy is…

Rates of aggregation of dodecane-in-water (d/w) nanoemulsions stabilized with 7.5 mM sodium dodecylsulfate (SDS) are evaluated beyond 500 mM NaCl. As in the case of hexadecane-in-water (h/w) emulsions, it is found that flocculation rates…

Soft Condensed Matter · Physics 2020-07-15 Daniela Diaz , Kareem Rahn-Chique , Neyda Garcia-Valera , German Urbina-Villalba

By developing a two-dimensional (2D) full quantum simulation, the attributes of carbon nanotube field-effect transistors (CNTFETs) in different temperatures have been comprehensively investigated. Simulations have been performed by…

Materials Science · Physics 2017-02-07 Ali Naderi , S. Mohammad Noorbakhsh , Hossein Elahipanah

We consider a regular random network where each node has exactly three neighbours. Ising spins at the network nodes interact antiferromagnetically along the links. The clustering coefficient $C$ is tuned from zero to 1/3 by adding new…

Disordered Systems and Neural Networks · Physics 2009-06-17 Anna Manka-Krason , Krzysztof Kulakowski

It is widely comprehended that temperature may cause phonon-exciton scattering, enhancing the energy level's linewidth and leading to some spectrum shifts. However, in the present paper, we suggest a different mechanism that allows the…

Mesoscale and Nanoscale Physics · Physics 2023-04-11 Duy-Nhat Ly , Dai-Nam Le , Ngoc-Hung Phan , Van-Hoang Le

The pressure dependence, up to 11.3 kbar, of basic parameters of the superconducting state, such as the critical temperature (Tc), the lower and the upper critical fields, the coherence length, the penetration depth, and their anisotropy,…

Superconductivity · Physics 2016-11-11 J Pietosa , D J Gawryluk , R Puzniak , A Wisniewski , J Fink-Finowicki , M Kozlowski , M Berkowski

We calculate the effects of induced interactions on the transition temperature to the BCS state in dilute Fermi gases. For a pure Fermi system with 2 species having equal densities, the transition temperature is suppressed by a factor…

Condensed Matter · Physics 2009-10-31 H. Heiselberg , C. J. Pethick , H. Smith , L. Viverit

Significant temperature effects on the electrokinetic transport in a nanochannel with a slab geometry are demonstrated using a molecular dynamics (MD) model. A system consisting of Na+ and Cl- ions dissolved in water and confined between…

Soft Condensed Matter · Physics 2010-07-01 B. Jelinek , S. D. Felicelli , P. F. Mlakar , J. F. Peters
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