Results 201 to 210 of about 2,285,311 (372)

The relationship between CM and CO chondrites: Insights from combined analyses of titanium, chromium, and oxygen isotopes in CM, CO, and ungrouped chondrites. [PDF]

Geochim Cosmochim Acta, 2021
Torrano ZA, Schrader DL, Davidson J, Greenwood RC, Dunlap DR, Wadhwa M.   +5 more
europepmc   +1 more source

Nuclear Spin‐Free 70Ge/28Si70Ge Quantum Well Heterostructures Grown on Industrial SiGe‐Buffered Wafers

Advanced Science, EarlyView.
Hyperfine coupling to 29Si$^{29}{\rm Si}$ and 73Ge$^{73}{\rm Ge}$ nuclear spins limits hole spin‐qubit coherence in Ge heterostructures. We demonstrate device‐grade, nuclear‐spin‐free 70Ge$^{70}{\rm Ge}$/28Si70Ge$^{28}{\rm Si}^{70}{\rm Ge}$ quantum wells grown on industrial SiGe buffers with minimal use of enriched precursors.
Patrick Daoust, Nicolas Rotaru, Debojyoti Biswas, Sebastian Koelling, Eloise Rahier, Alexis Dubé‐Valade, Patrick Del Vecchio, Marcus S. Edwards, Mukhlasur Tanvir, Ebrahim Sajadi, Joe Salfi, Oussama Moutanabbir   +11 more
wiley   +1 more source

Climate and Livestock Management in Ancient India: Insights From Carbon and Oxygen Isotopes

Bhavna Ahlawat, Rashmi Rashmi, Aparna Dwivedi, Niraj Rai, See PDF   +4 more
openalex   +1 more source

Carbon and oxygen isotope measurements on Globigerina bulloides, Cibicides wuellerstorfi and Uvigerina peregrina, bulk density, carbonate and organic carbon contents in DSDP 594, Bounty Trough, Southwest Pacific

, 1983
Kyaw Winn
openalex   +1 more source

Atomic Precision CoCu Heterodimers with Pseudo‐D3h Symmetry Enable Tandem Nitrate Reduction

Advanced Science, EarlyView.
The Co─Cu heterodimer anchored on nitrogen‐doped graphene oxide substrate facilitates electrochemical nitrate reduction in alkaline medium. Co site promotes water dissociation to supply a proton, while Cu sites enhance nitrate adsorption and activation.
Akash Prabhu Sundar Rajan, Jayaraman Theerthagiri, Piyapa Junmon, Wanwisa Limphirat, Nuttapon Yodsin, Myong Yong Choi   +5 more
wiley   +1 more source

Mass-independent fractionation of oxygen isotopes during high-temperature condensation in cosmochemical plasmas. [PDF]

Proc Natl Acad Sci U S A
Asset N, Chaussidon M, Lombardi G, Villeneuve J, Tartèse R, Mostefaoui S, Robert F.   +6 more
europepmc   +1 more source

(Table 1) Stable carbon and oxygen isotope composition of secondary carbonates of ODP Hole 104-642E

, 1989
David A. Love, Shaun K. Frape, Ian L. Gibson, M G Jones   +3 more
openalex   +1 more source

Nonreciprocal Charge Transport in an Iron‐Based Superconductor with Broken Inversion Symmetry Engineered by a Hydrogen‐Concentration Gradient

Advanced Science, EarlyView.
Concentration gradients can serve as a universal platform for breaking spatial inversion symmetry. We demonstrate this concept by observing nonreciprocal electrical transport—a sensitive probe of inversion‐symmetry breaking—in the iron‐based superconductor Sm1111 with an engineered hydrogen gradient.
Takayuki Nagai, Yukito Nishio, Jumpei Matsumoto, Kota Hanzawa, Hidenori Hiramatsu, Hideo Hosono, Tsuyoshi Kimura   +6 more
wiley   +1 more source

Opposing seasonal trends in source water and sugar dampen intra-annual variability in tree rings oxygen isotopes. [PDF]

New Phytol
Szejner P, Tang Y, Angove C, Schiestl-Aalto P, Sahlstedt E, Young G, Nelson DB, Kahmen A, Saurer M, Rinne-Garmston KT.   +9 more
europepmc   +1 more source

An empirical calibration of the serpentine-water oxygen isotope fractionation at T = 25–100 °C

, 2023
Maria Rosa Scicchitano, Juan Carlos de Obeso, Tyler Blum, John W. Valley, P. B. Kelemen, William O. Nachlas, W. Schneider, Michael J. Spicuzza, Franziska Wilke, Vladimir Roddatis   +9 more
openalex   +2 more sources