Results 61 to 70 of about 187,197 (266)

Carrier distribution in multi-band materials and its effect on thermoelectric properties

Journal of Materiomics, 2016
Band convergence is one of the most interesting topics in recent studies of thermoelectrics. However, its effect on thermoelectric properties is only simply stated as improving band degeneracy.
Jun Mao, Weishu Liu, Zhifeng Ren
doaj   +1 more source

Superlattice platform for chiral superconductivity with tuneable and high Chern numbers

, 2017
Finding concrete realizations for topologically nontrivial chiral superconductivity has been a long-standing goal in quantum matter research. Here we propose a route to a systematic realization of chiral superconductivity with nonzero Chern numbers. This
Ojanen, Teemu, Pöyhönen, Kim
core   +1 more source

Oxygen Evolution Reaction by Ni‐Hexacyanoferrates Nanocubes Integrated with Trigonal Selenium: Effect, Properties and Performances

Advanced Functional Materials, EarlyView.
This work describes a novel approach to obtain composite submicrometric structures of nickel hexacyanoferrate integrating trigonal selenium with the aim of enhancing the catalytic efficiency in oxygen evolution reaction (OER). Interestingly, the nanostructures undergo a cube‐to‐sphere transition that optimizes surface properties, leading to superior ...
Edlind Lushaj, Tofik Ahmed Shifa, Kassa Belay Ibrahim, Alessio Bertocco, Kamran Akbar, Isabel Barroso‐Martín, Antonia Infantes‐Molina, Enrique Rodríguez‐Castellón, Alberto Vomiero, Elisa Moretti, Federico Polo   +10 more
wiley   +1 more source

Fabrication of superconducting nanowires from ultrathin MgB2 films via focused ion beam milling

AIP Advances, 2015
High quality superconducting nanowires were fabricated from ultrathin MgB2 films by a focused ion beam milling technique. The precursor MgB2 films in 10 nm thick were grown on MgO substrates by using a hybrid physical-chemical vapor deposition method ...
Chen Zhang, Da Wang, Zheng-Hao Liu, Yan Zhang, Ping Ma, Qing-Rong Feng, Yue Wang, Zi-Zhao Gan   +7 more
doaj   +1 more source

Competition between Electron-Phonon coupling and Spin Fluctuations in superconducting hole-doped BiOCuS

, 2010
BiOCuS is a band insulator that becomes metallic upon hole doping. Superconductivity was recently reported in doped BiOCu$_{1-x}$S and attributed to spin fluctuations as a pairing mechanism.
I. I. Mazin, I. I. Mazin, Lilia Boeri, Luciano Ortenzi, Ole Krogh Andersen, Silke Biermann   +5 more
core   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

Magnetoresistance in the superconducting state at the (111) LaAlO$_3$/SrTiO$_3$ interface

, 2017
Condensed matter systems that simultaneously exhibit superconductivity and ferromagnetism are rare due the antagonistic relationship between conventional spin-singlet superconductivity and ferromagnetic order.
Ariando, Chandrasekhar, V., Davis, S., Han, K., Huang, Z., Venkatesan, T.   +5 more
core   +1 more source

Locking Metastable Topological Domains in Nematic Liquid Crystal Pi Cells

Advanced Functional Materials, EarlyView.
Selective photopolymerization in the presence of a controlled voltage defines permanent director walls that lock‐in metastable bend and twist configurations within nematic liquid crystal Pi cells. Q‐tensor simulations corroborate the experiments, demonstrating the topological state stabilization.
Adithya Pradeep, Urban Mur, Junseok Ma, Nathan Spiller, Yihan Jin, Waqas Kamal, Steve J. Elston, Stephen M. Morris   +7 more
wiley   +1 more source

Magnetism and Superconductivity in (RE)Ni2B2C: The Case of TmNi2B2C

, 1997
The recently reported coexistence of an oscillatory magnetic order with the wave vector Q=0.241 \AA^{-1} and superconductivity in TmNi2B2C is analyzed theoretically.
A.I. Buzdin, Blount, Bulaevskii, Bulaevskii, Bulaevskii, Bulaevskii, Bulaevskii, Bulaevskii, Buzdin, Chang, Cho, Eisaki, Ginzburg, Hammaker, Ishikawa, L.N. Bulaevskii, Lyn, M.L. Kulić, Maple, Mattheiss, McCallum, Ng, Rehmann, Rhee, Zaretsky   +24 more
core   +2 more sources

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source