Results 111 to 120 of about 386,226 (302)

Isotope Effect for the Penetration Depth in Superconductors

, 1998
We show that various factors can lead to an isotopic dependence of the penetration depth $\delta$. Non-adiabaticity (Jahn-Teller crossing) leads to the isotope effect of the charge carrier concentration $n$ and, consequently, of $\delta$ in doped ...
A. Abrikosov, A. Bill, A. Bill, A. Bill, A. Furrer, A. Jezowski, A. Junod, A.V. Mahajan, B. Büchner, B. Dabrowski, B. Dabrowski, D. Haskel, D. Zech, E.A. Lynton, G. Ruani, G. Soerensen, G.-M. Zhao, G.-M. Zhao, G.-M. Zhao, H. Alloul, H.J. Bornemann, J. Mesot, J. Mustre de Leon, J.M. Wade, J.P. Carbotte, J.P. Franck, K.H. Johnston, L.V. Gasparov, M.B. Maple, M.I. Salkola, M.K. Crawford, M.R. Norman, N. Phillips, N. Yamada, P.G. Radaelli, R.P. Sharma, S. A. Wolf, S. Skalski, S. Zagoulaev, S. Zagoulaev, S.P. Singh, T. Miyatake, T.F. O’Malley, V. Z. Kresin, V.Z. Kresin, V.Z. Kresin, V.Z. Kresin, V.Z. Kresin, V.Z. Kresin, W. McMillan   +49 more
core   +1 more source

isotope effect

, 2014
Citation: 'isotope effect' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03327 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Ultrathin, Stretchable, and 3D‐Printable Complementary Nanotubes–Polymer Composites for Multimodal Radiation Shielding in Extreme Environments

Advanced Materials, EarlyView.
A 3D‐printable dual‐mode radiation shielding material is introduced by combining boron nitride nanotubes and single‐walled carbon nanotubes in a stretchable PDMS matrix. The complementary nanotube network enables simultaneous attenuation of electromagnetic interference and neutron radiation while maintaining lightweight, mechanical resilience, and ...
Flandy, Kun Kim, Jaehyoung Ko, Daeun Kim, Daekwon Lee, Heesuk Rho, Sang Seok Lee, Dong Su Lee, Se Gyu Jang, Seokhoon Ahn, Seung‐Yeol Jeon, Dae‐Young Jeon, Yongho Joo   +12 more
wiley   +1 more source

Modification of the ground state in Sm-Sr manganites by oxygen isotope substitution

, 2002
The effect of $^{16}$O $\to$ $^{18}$O isotope substitution on electrical resistivity and magnetic susceptibility of Sm$_{1-x}$Sr$_x$MnO$_3$ manganites is analyzed.
A. Aliev, A. R. Kaul, A.I. Shames, A.M. Balagurov, C. Martin, C.N.R. Rao, C.P. Adams, D. I. Khomskii, D.I. Khomskii, D.M. Edwards, E. A. Chistotina, E. Saitoh, Guo-meng Zhao, H. Kuwahara, H. Kuwahara, H.Y. Hwang, I.D. Luzyanin, J. van den Brink, K. I. Kugel, K.H. Kim, N. A. Babushkina, N.A. Babushkina, N.A. Babushkina, N.A. Babushkina, O. Yu. Gorbenko, P. Dai, R. Kajimoto, R. Maezono, R.P. Borges, T. Akimoto, V. Kiryukhin, Y. Tokura   +31 more
core   +1 more source

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

Advanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Characterization of the Transition State of Functional Enzyme Dynamics [PDF]

, 2006
Through characterization of the solvent isotope effect on protein dynamics, we have examined determinants of the rate limitation to enzyme catalysis. A global conformational change in Ribonuclease A limits the overall rate of catalytic turnover.
Kovriguine, Evgueni, Loria, J. Patrick
core   +1 more source

Role of APS reductase in biogeochemical sulfur isotope fractionation

Nature Communications, 2019
Changes in S-isotope ratios over time provide clues to understanding the co-evolution of Earth and its biosphere. Here the authors determine the isotope effect of the first reductive enzyme in the sulfate respiration pathway and reinterpret sedimentary S-
Min Sub Sim, Hideaki Ogata, Wolfgang Lubitz, Jess F. Adkins, Alex L. Sessions, Victoria J. Orphan, Shawn E. McGlynn   +6 more
doaj   +1 more source

Single‐Atom Photocatalyst as Floatable Artificial Leaf for Upcycling Oceanic Plastic Waste

Advanced Materials, EarlyView.
To resolve the catastrophic disaster of oceanic plastic pollution, the novel Ru single atom loaded ZnIn2S4 photocatalysts, in the forms of powder or floatable artificial leaf, were prepared for direct conversion of raw polypropylene plastic into valuable chemicals. The optimized catalyst exhibits exceptional performance, with a total formic/acetic acid
Amin Talebian‐Kiakalaieh, Xin Xu, Wenzhong Ji, Yun Liu, Bingquan Xia, Jingrun Ran, Shi‐Zhang Qiao   +6 more
wiley   +1 more source

Kinetic Isotope Effect

, 2014
Molecules with different isotopic compositions generally react with other molecules in the same manner, but their reaction rates show differences due to their mass differences and sometimes also due to the lower natural abundance of certain isotopes. For example, CO2 is heavier than CO2 by about 2.3 %, and the abundance ratio of CO2/ CO2 is about 1.1 %.
openaire   +2 more sources