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Increasing power densities in integrated circuits has led to an increased prevalence of thermal hotspots in integrated circuits. Tracking these thermal hotspots is imperative to prevent circuit failures. In 3D integrated circuits,…

Applied Physics · Physics 2022-09-22 Darshan Chalise , Peter Kenesei , Sarvjit D. Shastri , David G. Cahill

We measured the temperature dependence of low-frequency Raman spectra in Li$_2$RuO$_3$, and observed multipeak quasielastic scattering in the Ru honeycomb polarizations below and above the magnetostructural transition temperature. We…

Strongly Correlated Electrons · Physics 2020-07-15 Yu. S. Ponosov , S. V. Streltsov

We investigate the effect that the temperature dependence of the crystal structure of a two dimensional organic charge-transfer salt has on the low-energy Hamiltonian representation of the electronic structure. For that, we determine the…

Strongly Correlated Electrons · Physics 2012-08-23 Harald O. Jeschke , Mariano de Souza , Roser Valenti , Rudra Sekhar Manna , Michael Lang , John A. Schlueter

Temperature dependence of the electron spin $g$ factors in bulk CdTe and InP are calculated and compared with experiment. It is assumed that the only modification of the band structure related to temperature is a dilatation change in the…

Materials Science · Physics 2015-05-30 Pawel Pfeffer , Wlodek Zawadzki

The investigation of temperature dependence of damping and period of vibrations of HTSC superconductive cylinder of Bi-Pb-Sr-Ca-Cu-O system suspended by a thin elastic thread and performing axial-torsional vibrations in a magnetic field at…

Superconductivity · Physics 2008-10-31 J. G. Chigvinadze , J. V. Acrivos , S. M. Ashimov , D. D. Gulamova , T. V. Machaidze , D. Uskenbaev

Nematic superconductors are characterized by an apparent crystal symmetry breaking that results in the anisotropy of the in-plane upper critical magnetic field $H_{c2}$. The symmetry breaking is usually attributed to the strain of the…

We investigate the temperature dependence of quasiparticle interference in the high $T_c$-cuprates using an Exact-Diagonalization + Monte-Carlo based scheme to simulate the $d$-wave superconducting order parameter. The quasiparticle…

Superconductivity · Physics 2022-12-19 Harun Al Rashid , Garima Goyal , Alireza Akbari , Dheeraj Kumar Singh

Further development of nuclear power plant technology relies heavily on materials durability under operating conditions. Estimating the materials performance in the operando tests is crucial. In this paper, the mechanical behavior of thin…

Pressure-dependent, low temperature inelastic light (Raman) scattering measurements of KCuF$_3$ show that applied pressure above $P^{*} \sim$ 7 kbar suppresses a previously observed structural phase transition temperature to zero…

Strongly Correlated Electrons · Physics 2015-05-28 S. Yuan , M. Kim , J. Seeley , S. Lal , P. Abbamonte , S. L. Cooper

Using the Ginzburg-Landau theory in very general terms, we develop a simple scaling procedure which allows to establish the temperature dependence of the upper critical field and the value of the superconducting critical temperature Tc of…

Superconductivity · Physics 2009-11-07 I. L. Landau , H. R. Ott

Normally, understanding the temperature dependent transport properties of strongly correlated electron systems remains challenging task due to complex electronic structure and its variations (around E$_{F}$) with temperature. Here, we…

Strongly Correlated Electrons · Physics 2017-03-21 Saurabh Singh , Devendra Kumar , Sudhir K. Pandey

In a recent experiment, Ma et al. measured the temperature dependence of the gap anisotropy of oxygen-annealed Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+x}$. Their measurements were taken along the two directions $\Gamma - M$ and $\Gamma - X$. They…

Condensed Matter · Physics 2016-08-31 J. Betouras , R. Joynt

Atomic vibrational dynamics in cuprite, Cu2O, was studied by inelastic neutron scattering and molecular dynamics (MD) simulations from 10 K to 900 K. Above 300 K, a diffuse inelastic intensity (DII) appeared, obscuring the high-energy…

We study a diffuse-interface model for thermally driven phase separation in viscous incompressible mixtures. The system couples a convective Cahn-Hilliard equation for the order parameter with a Stokes subsystem for the velocity-pressure…

Analysis of PDEs · Mathematics 2026-04-24 Maria Deliyianni , Boris Muha , Andrej Novak

We develop a temperature dependent empirical pseudopotential theory to study the electronic and optical properties of self-assembled quantum dots (QDs) at finite temperature. The theory takes the effects of both lattice expansion and…

Materials Science · Physics 2015-06-04 Jianping Wang , Ming Gong , Guang-Can Guo , Lixin He

Resistivity and Hall effect measurements have been carried out on a micro-fabricated bridge of Bi2201 single crystal at low temperatures down to 0.4 K under high magnetic fields. When superconductivity is crashed by a high magnetic field,…

Superconductivity · Physics 2023-02-23 Qihao Zang , Zhengyan Zhu , Zuyu Xu , Shichao Qi , Haoran Ji , Yiwen Li , Jian Wang , Huiqian Luo , Hua-Bing Wang , Hai-Hu Wen

We examine the temperature dependence of the optical sum rule in the normal state due to interactions. To be concrete we adopt a weak coupling approach which uses an electron-boson exchange model to describe inelastic scattering of the…

Strongly Correlated Electrons · Physics 2007-05-23 L. Benfatto , J. P. Carbotte , F. Marsiglio

Neutron scattering measurements on a large single crystal of CuGeO$_3$ have been used to determine the temperature-dependence of the spin-Peierls energy gap. While the power law behavior of the intensity of structural superlattice peaks is…

Condensed Matter · Physics 2009-10-28 Michael C. Martin , G. Shirane , Y. Fujii , M. Nishi , O. Fujita , J. Akimitsu , M. Hase , K. Uchinokura

Local structure of NdFeAsO$_{1-x}$F$_{x}$ ($x$=0.0, 0.05, 0.15 and 0.18) high temperature iron pnictide superconductor system is studied using arsenic $K$-edge extended x-ray absorption fine structure measurements as a function of…

Superconductivity · Physics 2011-06-15 Boby Joseph , Antonella Iadecola , Lorenzo Malavasi , Naurang L. Saini

The ``S-shape'' (decrease-increase-decrease) temperature dependence of luminescence peak shift from semiconductors is considered. A luminescence model for localized state ensemble was employed to interpret this anomalous temperature…

Materials Science · Physics 2009-11-11 Q. Li , S. J. Xu , M. H. Xie , S. Y. Tong