Publications associées à Efficient DNP at high fields and fast MAS with antenna-sensitized dinitroxides

Publications associées (8)

Neurochemical characteristics of pathological tissues in epilepsy: A preliminary 1H MR spectroscopy study at 7 T

Background and purpose: This study aims to evaluate the neurochemical characteristics of pathological tissues by 1H magnetic resonance spectroscopy (MRS) in patient with pharmaco-resistant focal epilepsy at 7 T. Methods: Thirteen patients with drug-resista ...

2025

Magnon assisted magnetization reversal in NiFe-YIG hybrid nanostructures

Shreyas Sanjay Joglekar

Spin waves (SWs) are collective excitations of spins in magnetically ordered materials. The quantized form of a SW is known as a magnon. SWs excited in ferrimagnetic insulators such as yttrium iron garnet (YIG) can transmit angular momentum over distances ...

EPFL2025

Control of spin currents by magnon interference in a canted antiferromagnet

Jean-Philippe Ansermet, Dirk Grundler, Peng Chen, Keita Yamamoto, Junfeng Hu, Anna Duvakina

Controlling the spin current lies at the heart of spintronics and its applications. In ferromagnets, the sign of spin currents is fixed once the current direction is determined. However, spin currents in antiferromagnets can possess opposite polarizations, ...

Springer Science and Business Media LLC2025

Applications of semiclassical and mixed quantum-classical dynamics to study molecular systems with multiple electronic states

Alan Scheidegger

Computational simulations of quantum molecular dynamics are indispensable for understanding and predicting phenomena in physical chemistry. This thesis explores molecular processes where multiple electronic states play a role. A significant part of this wo ...

EPFL2025

Graphene-Templated Achiral Hybrid Perovskite for Circularly Polarized Light Sensing

Michael Graetzel, Anurag Krishna, Georgios Kakavelakis

This study points out the importance of the templating effect in hybrid organic-inorganic perovskite semiconductors grown on graphene. By combining two achiral materials, we report the formation of a chiral composite heterostructure with electronic band sp ...

2024

Broad-wave-vector spin pumping of flat-band magnons

Jean-Philippe Ansermet

We report the experimental observation of large spin -pumping signals in the YIG/Pt system driven by broad -wave -vector spin -wave spin current. 280-nm-wide microwave inductive antennas offer broad -wavevector excitation, which, in combination with the qu ...

American Physical Society (APS)2024

Heterogeneous Overhauser-DNP on H-1 dominated by scalar coupling in aqueous solution

Jean-Philippe Ansermet, Christophe Roussel, Jonas Milani, Felipe Andres Saenz Padilla

The Overhauser Dynamic Nuclear Polarization (O-DNP) of H-1 nuclei usually involves a dipolar coupling with the polarizing agent, whereas scalar coupling via hyperfine interactions are more common with C-13 nuclei. Here, we show a scalar-coupling dominated ...

WILEY2022

pH-Dependent Catalytic Reaction Pathway for Water Splitting at the BiVO4−Water Interface from the Band Alignment

Alfredo Pasquarello, Francesco Ambrosio, Julia Anna Wiktor

We align the band edges of BiVO4 at the interface with liquid water by combining advanced electronic-structure calculations, molecular dynamics simulations, and a computational hydrogen electrode. After accounting for spin–orbit coupling and thermal and nu ...

2018