Results 31 to 40 of about 4,129 (201)

On the Possible “Supersolid” Character of Parahydrogen Clusters [PDF]

open access: yesThe Journal of Physical Chemistry A, 2011
We present results of a theoretical study of structural and superfluid properties of parahydrogen clusters comprising 25, 26 and 27 molecules at low temperature. The microscopic model utilized here is based on the Silvera-Goldman pair potential. Numerical results are obtained by means of Quantum Monte Carlo simulations, making use of the continuous ...
Mezzacapo, F., Boninsegni, M.
openaire   +4 more sources

Adsorption of parahydrogen on graphene [PDF]

open access: yesPhysical Review B, 2018
Replaced with published ...
Dusseault, Marisa, Boninsegni, Massimo
openaire   +2 more sources

Hyperpolarization of Nitrile Compounds Using Signal Amplification by Reversible Exchange

open access: yesMolecules, 2020
Signal Amplification by Reversible Exchange (SABRE), a hyperpolarization technique, has been harnessed as a powerful tool to achieve useful hyperpolarized materials by polarization transfer from parahydrogen.
Sarah Kim   +6 more
doaj   +1 more source

Parahydrogen-induced polarization enables the single-scan NMR detection of a 236 kDa biopolymer at nanomolar concentrations

open access: yesScientific Reports, 2023
Nuclear magnetic resonance (NMR) experiments utilizing parahydrogen-induced polarization (PHIP) were performed to elucidate the PHIP activity of the synthetic 236 kDa biopolymer poly-γ-(4-propargyloxy)-benzyl-L-glutamate) (PPOBLG).
Franziska Theiss   +5 more
doaj   +1 more source

1, 3-Butadienen Hydrogenation on Supported Pd-Sn Bimetallic Catalysts Investigated by Parahydrogen-induced Polarization

open access: yesChinese Journal of Magnetic Resonance, 2022
The selective hydrogenation of 1, 3-butadiene over Pd-Sn/Al2O3 bimetallic catalysts was investigated by heterogeneous parahydrogen-induced polarization (PHIP). A series of Pd1-Snx/Al2O3 bimetallic catalysts with different Pd/Sn ratios were synthesized by
Han HU, Wei-yu WANG, Jun XU, Feng DENG
doaj   +1 more source

Muonium hydride: The lowest density crystal

open access: yesPhysical Review Research, 2021
A muonium hydride molecule is a bound state of muonium and hydrogen atoms. It has half the mass of a parahydrogen molecule and very similar electronic properties in its ground state.
Youssef Kora   +3 more
doaj   +1 more source

Parahydrogen-induced polarization and spin order transfer in ethyl pyruvate at high magnetic fields

open access: yesScientific Reports, 2022
Nuclear magnetic resonance has experienced great advances in developing and translating hyperpolarization methods into procedures for fundamental and clinical studies. Here, we propose the use of a wide-bore NMR for large-scale (volume- and concentration-
Andrey N. Pravdivtsev   +5 more
doaj   +1 more source

Slow Light Propagation in a Thin Optical Fiber via Electromagnetically Induced Transparency [PDF]

open access: yes, 2002
We propose a novel configuration that utilizes electromagnetically induced transparency (EIT) to tailor a fiber mode propagating inside a thin optical fiber and coherently control its dispersion properties to drastically reduce the group velocity of the ...
A. B. Matsko   +50 more
core   +2 more sources

Representation of population exchange at level anti-crossings [PDF]

open access: yesMagnetic Resonance, 2020
A theoretical framework is proposed to describe the spin dynamics driven by coherent spin mixing at level anti-crossings (LACs). We briefly introduce the LAC concept and propose to describe the spin dynamics using a vector of populations of the diabatic ...
B. A. Rodin   +3 more
doaj   +1 more source

Generating and sustaining long-lived spin states in 15N,15N′-azobenzene [PDF]

open access: yes, 2019
Long-Lived spin States (LLSs) hold a great promise for sustaining non-thermal spin order and investigating various slow processes by Nuclear Magnetic Resonance (NMR) spectroscopy.
Ivanov, Konstantin L.   +6 more
core   +1 more source

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