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The electronic structures of fcc Ce are calculated for large supercells with varying disorder by use of density-functional theory. Thermal disorder induces fluctuations of the amplitude of the magnetic moments and an increase the average…

Materials Science · Physics 2014-06-02 T. Jarlborg

We report results of low-temperature thermodynamic and transport measurements of Pb_{1-x}Tl_{x}Te single crystals for Tl concentrations up to the solubility limit of approximately x = 1.5%. For all doped samples, we observe a…

Strongly Correlated Electrons · Physics 2009-11-10 Y. Matsushita , H. Bluhm , T. H. Geballe , I. R. Fisher

Based on an improved U(1) slave-boson approach to the t-J Hamiltonian, we invest igate a relationship between the superfluid weight $n_s/m^*$(the superconducting charge carrier density/the effective mass of the charge carrier) and the…

Superconductivity · Physics 2007-05-23 Sung-Sik Lee , Sung-Ho Suck Salk

In the systems ferromagnet/superconductor ([Fe, Ni]/In), the temperature dependent transport has been investigated within the temperature range including superconducting transition temperature for Indium. It has been found that when Indium…

Superconductivity · Physics 2007-05-23 Yu. N. Chiang , O. G. Shevchenko , R. N. Kolenov

We have investigated the temperature dependence of the photoluminescence spectra and average photoluminescence decay rate of CdTe quantum dot monolayers of different sizes as a function of concentration in the range 77 K to 296 K. It is…

Mesoscale and Nanoscale Physics · Physics 2016-09-16 Graham P. Murphy , Xia Zhang , A. Louise Bradley

In order to explore the effect of external temperature $T$ in quantum correlation we compute thermal entanglement and thermal discord analytically in the Heisenberg $X$ $Y$ $Z$ model with Dzyaloshinskii-Moriya Interaction term ${\bm D}…

Quantum Physics · Physics 2019-04-24 DaeKil Park

Capitalizing on the two-dimensional nature of superconductivity in field-effect doped C60, we show that it should be possible to increase the transition temperature Tc by applying uniaxial stress perpendicular to the gate electrode. This…

Superconductivity · Physics 2009-11-07 Erik Koch

We argue that in a fluid, or magnet, confined by adsorbing walls which favour liquid, or (+) phase, the solvation (Casimir) force in the vicinity of the critical point is strongly influenced by capillary condensation which occurs below the…

Statistical Mechanics · Physics 2009-10-31 A. Drzewinski , A. Maciolek , R. Evans

The superconducting transition temperature (Tc) of a single layer graphene coupled to an Indium oxide (InO) film, a low carrier-density superconductor, is found to increase with decreasing carrier density and is largest close to the average…

Superconductivity · Physics 2022-05-20 Gopi Nath Daptary , Udit Khanna , Eyal Walach , Arnab Roy , Efrat Shimshoni , Aviad Frydman

The formation, growth, structure and cluster size distribution (CSD) properties in a two-dimensional system of particles interacting with Lennard-Jones (LJ) potential under controlled cooling condition have been studied using Monte-Carlo…

Soft Condensed Matter · Physics 2018-01-18 Barnana Pal

We calculate perturbatively the effect of a dipolar interaction upon the Bose-Einstein condensation temperature. This dipolar shift depends on the angle between the symmetry axes of the trap and the aligned atomic dipole moments, and is…

Statistical Mechanics · Physics 2007-05-23 Konstantin Glaum , Axel Pelster , Hagen Kleinert , Tilman Pfau

Using molecular dynamics simulations, it is demonstrated that monovalent counterions can induce aggregation of similarly charged rod-like polyelectrolyte chains. The critical value of the linear charge density for aggregation is shown to be…

Soft Condensed Matter · Physics 2014-05-06 Anoop Varghese , R. Rajesh , Satyavani Vemparala

On the basis of shear modulus measurements on a Pt-based glass, we calculated temperature dependence of the defect concentration c using the Interstitialcy theory. This temperature dependence is compared with temperature dependence of the…

Disordered Systems and Neural Networks · Physics 2023-05-29 A. S. Makarov , G. V. Afonin , R. A. Konchakov , J. C. Qiao , A. N. Vasiliev , N. P. Kobelev , V. A. Khonik

We investigate the dependence of the chiral condensate $<\bar qq>$ on the temperature and quark density using the soft-wall holographic model of QCD, adopting geometries with black holes at finite temperature and quark chemical potential…

High Energy Physics - Phenomenology · Physics 2012-08-28 Pietro Colangelo , Floriana Giannuzzi , Stefano Nicotri , Vincenzo Tangorra

We study pairing correlations in ultrasmall superconductor in the nanoscopic limit by means of a toy model where electrons are confined in a single, multiply degenerate energy level. We solve the model exactly to investigate the temperature…

Superconductivity · Physics 2009-11-07 O. Bozat , Z. Gedik

Self consistent renormalization theory of itinerant ferromagnets is used to calculate the Curie temperature of clusters down to approximately 100 atoms in size. In these clusters the electrons responsible for the magnetic properties are…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 L. Peters , M. I. Katsnelson , A. Kirilyuk

We present a time-resolved experimental study of the temperature effect on the coherence of traveling polariton condensates. The simultaneous detection of their emission both in real- and reciprocal-space allows us to fully monitor the…

Mesoscale and Nanoscale Physics · Physics 2020-04-23 E. Rozas , M. D. Martín , C. Tejedor , L. Viña , G. Deligeorgis , Z. Hatzopoulos , P. G. Savvidis

We analyse the impact of temperature on the diffusion coefficient of an inertial Brownian particle moving in a symmetric periodic potential and driven by a symmetric time-periodic force. Recent studies have revealed the low friction regime…

Statistical Mechanics · Physics 2023-06-28 I. G. Marchenko , V. Aksenova , I. I. Marchenko , J. Łuczka , J. Spiechowicz

We present an analysis of the temperature dependence of the optical response of small sodium clusters in a temperature range bracketing the melting phase transition. When the temperature increases, the mean excitation energy undergoes a red…

chem-ph · Physics 2009-10-28 Aurel Bulgac , Caio Lewenkopf

We discuss standard and tighter upper bounds on the critical temperature $T_c$ of two-dimensional superconductors and superfluids versus particle density n or filling factor $\nu$, under the assumption that the transition from the normal to…

Superconductivity · Physics 2022-03-11 Ting ting Shi , Wei Zhang , C. A. R. Sa de Melo
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