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A new approach is presented to obtain candidate structures from atomic pair distribution function (PDF) data in a highly automated way. It fetches, from web-based structural databases, all the structures meeting the experimenter's search…

材料科学 · 物理学 2020-05-07 Long Yang , Pavol Juhás , Maxwell W. Terban , Matthew G. Tucker , Simon J. L. Billinge

The static diffraction intensity distribution from large material system conceived as perfectly homogeneous system made inhomogeneous, though substitution of groups of atoms, small particles, by other groups of atoms, is explicitly…

材料科学 · 物理学 2020-10-21 Noureddine Hadji

Transition-metal perovskite oxides exhibit a wide range of extraordinary but imperfectly understood phenomena. Charge, spin, orbital, and lattice degrees of freedom all undergo order-disorder transitions in regimes not far from where the…

强关联电子 · 物理学 2009-11-07 Ch. Renner , G. Aeppli , B-G. Kim , Yeong-Ah Soh , S. -W. Cheong

The presence of shell structure and the accompanying high level degeneracy leads to a strengthening of the pairing interaction in some metallic nanoclusters and ions. It is predicted that for some specific systems one can expect a large…

超导电性 · 物理学 2009-11-11 Y. N. Ovchinnikov , V. Z. Kresin

We have examined extended structures, bridges and arches, in computer generated, non-sequentially stabilized, hard sphere deposits. The bridges and arches have well defined distributions of sizes and shapes. The distribution functions…

统计力学 · 物理学 2016-11-23 Luis A. Pugnaloni , G. C. Barker , Anita Mehta

Recent experiments showed that the robust charge-ordering in manganites can be weakened by reducing the grain size down to nanoscale. Weak ferromagnetism was evidenced in both nanoparticles and nanowires of charge-ordered manganites. To…

材料科学 · 物理学 2007-05-23 S. Dong , F. Gao , Z. Q. Wang , J. -M. Liu , Z. F. Ren

Nanoscale phase separation (NPS) characterized by particular types of correlated disorder plays an important role in the functionality of high temperature superconductors (HTS). Our results show that multiscale heterogeneity is an essential…

材料科学 · 物理学 2021-11-23 Gaetano Campi , Antonio Bianconi

The structural investigations of nanomaterials motivated by their large variety and diverse set of applications have attracted considerable attention. In particular, the ever-improving machinery, both in laboratory and at large scale…

材料科学 · 物理学 2020-04-07 Dominik Kriegner , Milan Dopita

The optical properties of photonic structures made with more than two materials are very interesting for optical filtering and lighting applications. Herein, we compared the transmission properties of one-dimensional photonic crystals made…

光学 · 物理学 2014-12-16 Ilka Kriegel , Francesco Scotognella

Miniaturized and rationally assembled nanostructures exhibit extraordinarily distinct physical properties beyond their individual units. This review will focus on structured small-scale optical cavities that show unique electromagnetic near…

光学 · 物理学 2023-07-25 Danqing Wang , Ankun Yang

The role of elastic interactions between Jahn-Teller ions in formation of various orbital- and charge-ordered structures in manganites and related compounds is analyzed. It is shown that such interactions alone are often sufficient to…

强关联电子 · 物理学 2009-11-07 D. I. Khomskii , K. I. Kugel

One of the breakthrough areas of physical science over the past decade has been research in the field of nanostructured materials of various substances, almost all of the properties of which differ sharply from the properties of macroscopic…

介观与纳米尺度物理 · 物理学 2010-08-05 Omar Khazamov , Magomed Ramadanov

We demonstrate that the form and location (not the size or spacing) of the energetically preferred geometrical structure of the crystalline quark-hadron mixed phase in a neutron star is very sensitive to finite size terms beyond the surface…

天体物理学 · 物理学 2008-11-26 Michael B. Christiansen , Norman K. Glendenning

The complexity of condensed matter arises from emergent behaviors that cannot be understood by analyzing individual constituents in isolation. While traditional condensed-matter approaches-developed primarily for ideal crystalline…

材料科学 · 物理学 2025-09-30 Elisabetta Nocerino

In view of promising applications of fractal nanostructures, we analyze the spectra of quantum particles in the Sierpinski carpet and study the non-correlated electron gas in this geometry. We show that the spectrum exhibits scale…

介观与纳米尺度物理 · 物理学 2015-03-27 Alberto Hernando , Miroslav Sulc , Jiri Vanicek

This is a critical review of MAX-phase carbides and nitrides from an electronic-structure and chemical bonding perspective. This large group of nanolaminated materials is of great scientific and technological interest and exhibit a…

材料科学 · 物理学 2016-12-15 Martin Magnuson , Maurizio Mattesini

We show that the information gained in spectroscopic experiments regarding the number and distribution of atomic environments can be used as a valuable constraint in the refinement of the atomic-scale structures of nanostructured or…

材料科学 · 物理学 2015-05-14 Matthew J Cliffe , Martin T. Dove , D. A. Drabold , Andrew L. Goodwin

We derive stability conditions of Asymmetric Nuclear Matter ($ANM$) and discuss the relation to mechanical and chemical instabilities of general two-component systems. We show that the chemical instability may appear as an instability of…

核理论 · 物理学 2009-11-06 V. Baran , M. Colonna , M. Di Toro , V. Greco

In this review, the present status of theories for manganites is discussed. The complex phase diagrams of these materials, with a variety of spin-charge-orbital ordering tendencies, is addressed using mean-field and Monte Carlo simulation…

强关联电子 · 物理学 2007-05-23 Takashi Hotta , Elbio Dagotto

We examine the interdependence of structural and electronic properties of two substituted pyrene crystals by means of combined spectroscopic probes and density-functional theory calculations. One derivative features n-hexyl side groups,…