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Thermal fluctuations constantly and evenly excite all vibrational modes in an equilibrium crystal. As the temperature rises, these fluctuations promote the formation of defects and eventually melting. In active solids, the self-propulsion…

Soft Condensed Matter · Physics 2024-09-25 Helena Massana-Cid , Claudio Maggi , Nicoletta Gnan , Giacomo Frangipane , Roberto Di Leonardo

Diblock copolymers by virtue of the chemical dissimilarity between the constituting blocks exhibit microphase separation in the melt state. The phase separated melt can successfully be exploited to control the morphology of the final semi…

Soft Condensed Matter · Physics 2018-02-19 Chitrita Kundu , Nikhil S. Joshi , Ashok Kumar Dasmahapatra

We show that the formation of a gel by conducting colloidal particles leads to a dramatic enhancement in bulk conductivity, due to inter-particle electron tunneling, combining predictions from molecular dynamics simulations with structural…

Soft Condensed Matter · Physics 2013-06-24 Biagio Nigro , Claudio Grimaldi , Peter Ryser , Francesco Varrato , Giuseppe Foffi , Peter J. Lu

Open many-body quantum systems can exhibit intriguing nonequilibrium phases of matter, such as time crystals. In these phases, the state of the system spontaneously breaks the time-translation symmetry of the dynamical generator, which…

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

Electrical resistivity, magnetic susceptibility, and specific heat measurements on single crystals of La$Tr_2$Al$_{20}$ with $Tr$ = Mo and W revealed that these compounds exhibit superconductivity with transition temperatures $T_c$ = 3.22…

Superconductivity · Physics 2020-09-30 Rumika Miyawaki , Naoki Nakamura , Ryuji Higashinaka , Tatsuma D. Matsuda , Yuji Aoki

We present an original method to estimate the conductivity of a single molecule anchored to nanometric-sized metallic electrodes, using a Mechanically Controlled Break Junction (MCBJ) operated at room temperature in liquid. We record the…

Mesoscale and Nanoscale Physics · Physics 2018-03-16 M. Gil , T. Malinowski , M. Iazykov , H. Klein

We study the electrostatic energy of binary ionic mixtures (BIMs) in the form of Coulomb crystals with the main focus on ordered crystals. We consider 15 different binary bcc-like lattices, accurately calculate their electrostatic energies…

High Energy Astrophysical Phenomena · Physics 2024-11-07 A. A. Kozhberov

General expressions are derived for the electrical resisitivity and thermal conductivity of a twinned single crystal. Particular attention is paid to the effect of the structure of the twin domains on these transport coefficients. Edge…

Condensed Matter · Physics 2007-05-23 V. W. Wittorff

The crystal and magnetic structures of AlFe2B2 have been studied with a combination of X-ray and neutron diffraction and electronic structure calculations. The magnetic and magnetocaloric properties have been investigated by magnetisation…

Mixed-anion compounds, which incorporate multiple types of anions into materials, displays tailored crystal structures and physical/chemical properties, garnering immense interests in various applications such as batteries, catalysis,…

A new effect, gas amplification of electron energy is reported here; namely when a cylindrical pyroelectric crystal such as (LiNbO3) is contained in a concentric cylindrical chamber and is heated and then allowed to cool in a dilute gas the…

Atomic Physics · Physics 2007-05-23 James D. Brownridge , Stephen M. Shafroth

We show that sustainably harvesting 'blue' energy from the spontaneous mixing process of fresh and salty water can be boosted by varying the water temperature during a capacitive mixing process. Our modified Poisson-Boltzmann calculations…

Statistical Mechanics · Physics 2015-01-09 Mathijs Janssen , Andreas Härtel , René van Roij

A strong increase of the thermal conductivity is observed at the phase transition (Tc =18.2 K) in Cu2Te2O5Cl2 single crystal. This behavior is compared with that of spin- Peierls system NaV2O5, where similar experimental observation has…

Strongly Correlated Electrons · Physics 2007-05-23 A. Smontara , A. Bilusic , Z. Jaglicic , J. Dolinsek , H. Berger

Recent work [1] demonstrated high coercivity and magnetic moment in cobalt carbide nanoparticle assemblies and explained the high coercivity from first principles in terms of the high magnetocrystalline anisotropy of the cobalt carbide…

Mesoscale and Nanoscale Physics · Physics 2018-09-26 Pallabi Sutradhar , Shiv N. Khanna , Jayasimha Atulasimha

We have performed high-pressure, electrical resistivity, and specific heat measurements on CeTe3 single crystals. Two magnetic phases with nonparallel magnetic easy axes were detected in electrical resistivity and specific heat at low…

Strongly Correlated Electrons · Physics 2009-05-02 D. A. Zocco , J. J. Hamlin , T. A. Sayles , M. B. Maple , J. -H. Chu , I. R. Fisher

We have measured the bending-induced polarization of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals with compositions at the relaxor-ferroelectric phase boundary. The crystals display very large flexoelectricity, with flexocoupling coefficients an…

Materials Science · Physics 2015-06-18 Jackeline Narvaez , Gustau Catalan

High quality hexagon plate-like Na3Bi crystals with large (001) plane surfaces were grown from a molten Na flux. The freshly cleaved crystals were analyzed by low temperature scanning tunneling microscopy (STM) and angle-resolved…

The temperature dependent dielectric properties revealed re-entrant relaxor behaviour (Tm ~130 K and 210 K for 1 kHz) below a high temperature diffused phase transition, Tc ~270 K in lead cobalt niobate (PCN). Multiple positive/negative…

Materials Science · Physics 2018-10-30 Adityanarayan H. Pandey , Surya Mohan Gupta

Luttinger liquid behavior was observed in a crossed junction formed with two metallic multi-wall carbon nanotubes whose differential conductance vanished with the power of bias voltage and temperature. With applying constant voltage or…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jinhee Kim , Kicheon Kang , Jeong-O Lee , Kyung-Hwa Yoo , Jae-Ryoung Kim , Jong Wan Park , Hye Mi So , Ju-Jin Kim
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