Concept

J-coupling

Related publications (529)

Spin excitations in a single La2CuO4 layer

Henrik Moodysson Rønnow, Thorsten Schmitt, Bastien Dalla Piazza, Ivan Bozovic

Cuprates and other high-temperature superconductors consist of two-dimensional layers that are crucial to their properties. The dynamics of the quantum spins in these layers lie at the heart of the mystery of the cuprates(1-7). In bulk cuprates such as La2 ...

Nature Publishing Group2012

Ultrahigh-Resolution Magnetic Resonance in Inhomogeneous Magnetic Fields: Two-Dimensional Long-Lived-Coherence Correlation Spectroscopy

Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin, Riddhiman Sarkar, Srinivas Chinthalapalli

A half-century quest for improving resolution in Nuclear Magnetic Resonance (NMR) and Magnetic Resonance Imaging (MRI) has enabled the study of molecular structures, biological interactions, and fine details of anatomy. This progress largely relied on the ...

2012

Modeling of temperature and turbidity in a natural lake and a reservoir connected by pumped-storage operations

Alfred Johny Wüest, Martin Schmid

Pumped-storage (PS) systems are used to store electric energy as potential energy for release during peak demand. We investigate the impacts of a planned 1000 MW PS scheme connecting Lago Bianco with Lago di Poschiavo (Switzerland) on temperature and parti ...

Amer Geophysical Union2012

Anticollinear magnetic order induced by impurities in the frustrated Heisenberg model of pnictides

Frédéric Mila, Cédric Weber

We present Monte Carlo simulations for a classical antiferromagnetic Heisenberg model with both nearest (J(1)) and next-nearest (J(2)) exchange couplings on the square lattice in the presence of nonmagnetic impurities. We show that the order-by-disorder en ...

2012

Field- and geometry-controlled avoided crossings of spin-wave modes in reprogrammable magnonic crystals

Dirk Grundler

We study the spin dynamics in arrays of densely packed submicron Ni80Fe20 wires which form one-dimensional magnonic crystals. They are subject to an in-plane magnetic field H being collinear with the wires. In the case when neighboring wires are magnetized ...

2011

Extending Timescales and Narrowing Linewidths in NMR

Geoffrey Bodenhausen, Aurélien Bornet, Pascal Miéville, Sami Jannin, Diego Carnevale, Paul Romeo Vasos, Simone Ulzega, Marc Anthony Caporini, Nicola Salvi, Martial Rey

Among the different fields of research in nuclear magnetic resonance (NMR) which are currently investigated in the Laboratory of Biomolecular Magnetic Resonance (LRMB), two subjects that are closely related to each other are presented in this article. On t ...

Schweizerische Chemische Gesellschaft2011

Fast and accurate algorithm for the simulation of NMR spectra of large spin systems

Luc Patiny, Julien Wist, Andrés Mauricio Castillo Robles

The computational cost for the simulation of NMR spectra grows exponentially with the number of nuclei. Today, the memory available to store the Hamiltonian limits the size of the system that can be studied. Modern computers enable to tackle systems contai ...

2011

Strong coupling of Sm and Fe magnetism in SmFeAsO as revealed by magnetic x-ray scattering

Henrik Moodysson Rønnow, Xiao Wang

The magnetic structures adopted by the Fe and Sm sublattices in SmFeAsO have been investigated using element-specific x-ray resonant and nonresonant magnetic scattering techniques. Between 110 and 5 K, the Sm and Fe moments are aligned along the c and a di ...

2011

Vibrational Relaxation and Intersystem Crossing of Binuclear Metal Complexes in Solution

Majed Chergui, Frank van Mourik, Andrea Cannizzo, Renske Marjan van der Veen

The ultrafast vibrational-electronic relaxation upon excitation into the singlet (1)A(2u) (d sigma*-> p sigma) excited state of the d(8)-d(8) binuclear complex Pt-2(P2O5H2)(4) has been investigated in different solvents by femtosecond polychromatic f ...

2011

Ultra High-Resolution NMR: Sustained Induction Decays of Long-Lived Coherences

Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin

Long-lived coherences (LLCs) in homonuclear pairs of chemically inequivalent spins can be excited and sustained during protracted radio frequency irradiation periods that alternate with brief windows for signal observation. Fourier transformation of the su ...

2011

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