Results 21 to 30 of about 110,450 (295)

Possible pairing mechanism switching driven by structural symmetry breaking in BiS2-based layered superconductors

Scientific Reports, 2021
Investigation of isotope effects on superconducting transition temperature (T c) is one of the useful methods to examine whether electron–phonon interaction is essential for pairing mechanisms. The layered BiCh2-based (Ch: S, Se) superconductor family is
Aichi Yamashita, Hidetomo Usui, Kazuhisa Hoshi, Yosuke Goto, Kazuhiko Kuroki, Yoshikazu Mizuguchi   +5 more
doaj   +1 more source

Bose-Einstein Condensation of $^{88}$Sr Through Sympathetic Cooling with $^{87}$Sr [PDF]

, 2010
We report Bose-Einstein condensation of $^{88}$Sr, which has a small, negative s-wave scattering length ($a_{88}=-2$\,$a_0$). We overcome the poor evaporative cooling characteristics of this isotope by sympathetic cooling with $^{87}$Sr atoms.
de Escobar, Y. N. Martinez, DeSalvo, B. J., Killian, T. C., Mickelson, P. G., Yan, M.   +4 more
core   +2 more sources

Ground state properties of exotic nuclei near Z=40 in the relativistic mean-field theory, [PDF]

, 1995
Study of the ground-state properties of Kr, Sr and Zr isotopes has been performed in the framework of the relativistic mean field (RMF) theory using the recently proposed relativistic parameter set NL-SH.
Aboussir, Audi, Boguta, Bonche, Bonche, Boyd, Buchinger, Eastham, G.A. Lalazissis, Gambhir, Heenen, Hirata, Lalazissis, Lee, M.M. Sharma, Maharana, Mueller, Otten, Otto, Quentin, Raman, Reinhard, Sagawa, Serot, Serot, Sharma, Sharma, Sharma, Sharma, Sheikh, Tajima, Tanihata, Vautherin   +32 more
core   +2 more sources

C- and Sr-isotope stratigraphy of the São Caetano complex, Northeastern Brazil: a contribution to the study of the Meso-Neoproterozoic seawater geochemistry

Anais da Academia Brasileira de Ciências, 2005
C-isotope and 87Sr/86Sr values for five carbonate successions from the São Caetano Complex, northeastern Brazil, were used to constrain their depositional age and to determine large variations in the C- and Sr-isotopic composition of seawater under the ...
Juan C. Silva, Alcides N. Sial, Valderez P. Ferreira, Márcio M. Pimentel   +3 more
doaj   +1 more source

Geochemistry, S and Sr isotopes and origin of the Shahneshin barite deposit, NW Kurdistan Province, Iran

Journal of Economic Geology, 2021
Introduction The lenticular Shahneshin barite deposit (N: 35°39'36'' and E: 46°36'11'') is located 80 km northeast of Marivan, Kurdistan Province; north Sanandaj-Sirjan Zone (Stöcklin, 1968).
Hadi Amin-Rasouli, Mehdi Moradi, Zahra Sadat Baleshabadi   +2 more
doaj   +1 more source

Bioavailable soil and rock strontium isotope data from Israel [PDF]

Earth System Science Data, 2020
Strontium isotope ratios (87Sr ∕ 86Sr) of biogenic material such as bones and teeth reflect the local sources of strontium ingested as food and drink during their formation. This has led to the use of strontium isotope ratios as a geochemical tracer in a
I. Moffat, I. Moffat, R. Rudd, M. Willmes, M. Willmes, G. Mortimer, L. Kinsley, L. McMorrow, R. Armstrong, M. Aubert, M. Aubert, M. Aubert, R. Grün, R. Grün   +13 more
doaj   +1 more source

Inclusion of a suite of weathering tracers in the cGENIE Earth system model – muffin release v.0.9.23 [PDF]

Geoscientific Model Development, 2021
The metals strontium (Sr), lithium (Li), osmium (Os) and calcium (Ca), together with their isotopes, are important tracers of weathering and volcanism – primary processes which shape the long-term cycling of carbon and other biogeochemically important ...
M. Adloff, M. Adloff, A. Ridgwell, A. Ridgwell, F. M. Monteiro, I. J. Parkinson, A. J. Dickson, P. A. E. Pogge von Strandmann, P. A. E. Pogge von Strandmann, M. S. Fantle, S. E. Greene   +10 more
doaj   +1 more source

Isotope-shift spectroscopy of the ^{1}S_{0}→^{3}P_{1} and ^{1}S_{0}→^{3}P_{0} transitions in strontium

Physical Review Research, 2019
Isotope-shift spectroscopy with narrow optical transitions provides a benchmark for atomic structure calculations and has also been proposed as a way to constrain theories predicting physics beyond the standard model.
Hirokazu Miyake, Neal C. Pisenti, Peter K. Elgee, Ananya Sitaram, Gretchen K. Campbell   +4 more
doaj   +1 more source

C, O, and Sr isotopic variations in Neoproterozoic-Cambrian carbonate rocks from Sete Lagoas Formation (Bambuí Group), in the Southern São Francisco Basin, Brazil

Brazilian Journal of Geology, 2017
: High-resolution chemostratigraphic data of carbonates from the Sete Lagoas Formation (Bambuí Group) show large variations on the C, O, and Sr isotope compositions.
Cristian Guacaneme, Marly Babinski, Gustavo Macedo de Paula-Santos, Antonio Carlos Pedrosa-Soares   +3 more
doaj   +1 more source

Rapid Purification of Sr and Nd for Isotope Analysis with Multiple-column Method

Yankuang ceshi, 2020
BACKGROUND The Sr and Nd isotopic compositions of a sample depend on its initial isotopic ratios, the ratios between the parent nuclide and daughter product, and the decay time.
ZHU Zhi-yong, PAN Chen-xu, ZHU Xiang-kun
doaj   +1 more source