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pro vyhledávání: '"Ernst, Matthias"'
Dynamic nuclear polarization (DNP) involves a polarization transfer from unpaired electrons to hyperfine coupled nuclei and can increase the sensitivity of nuclear magnetic resonance (NMR) signals by several orders of magnitude. The hyperfine couplin
Externí odkaz:
http://arxiv.org/abs/2407.10319
Autor:
Chávez, Matías, Ernst, Matthias
This article presents the application of continuous Floquet theory in solid-state NMR. Continuous Floquet theory extends traditional Floquet theory to non-continuous Hamiltonians, enabling the description of observable effects not fully captured by t
Externí odkaz:
http://arxiv.org/abs/2404.06300
Autor:
von Witte, Gevin, Himmler, Aaron, Hyppönen, Viivi, Jäntti, Jiri, Albannay, Mohammed M., Moilanen, Jani O., Ernst, Matthias, Lehto, Vesa-Pekka, Riikonen, Joakim, Kozerke, Sebastian, Kettunen, Mikko I., Tamarov, Konstantin
Si nanoparticles (NPs) have been actively developed as a hyperpolarized magnetic resonance imaging (MRI) contrast agent with an imaging window close to one hour. However, the progress in the development of NPs has been hampered by the incomplete unde
Externí odkaz:
http://arxiv.org/abs/2401.08320
Dynamic nuclear polarization enables the hyperpolarization of nuclear spins beyond the thermal-equilibrium Boltzmann distribution. However, it is often unclear why the experimentally measured hyperpolarization is below the theoretical achievable maxi
Externí odkaz:
http://arxiv.org/abs/2312.07244
Autor:
Thomas, Luzian1 (AUTHOR) lthomas@student.ethz.ch, Ernst, Matthias1 (AUTHOR) maer@ethz.ch
Publikováno v:
Magnetic Resonance. 9/2/2024, p1-19. 19p.
Autor:
Chávez, Matías, Ernst, Matthias
We present a framework that uses a continuous frequency space to describe and design solid-state NMR experiments. The approach is similar to the well established Floquet treatment for NMR, but is not restricted to periodic Hamiltonians and allows the
Externí odkaz:
http://arxiv.org/abs/2207.05522
Interaction frames in solid-state NMR: A case study for chemical-shift-selective irradiation schemes
Autor:
Chávez, Matías, Ernst, Matthias
Interaction frames play an important role in describing and understanding experimental schemes in magnetic resonance. They are often used to eliminate dominating parts of the spin Hamiltonian, e.g., the Zeeman Hamiltonian in the usual (Zeeman) rotati
Externí odkaz:
http://arxiv.org/abs/2207.05458