Results 81 to 90 of about 208,920 (196)

Nonlinear detection of secondary isotopic chemical shifts in NMR through spin noise

open access: yesNature Communications, 2017
Nuclear spin noise allows passive monitoring of magnetization using the sole NMR detection circuit. Here, the authors report spectroscopic signatures of low abundance molecules and of weak magnetic field gradients which are nonlinearly amplified by ...
Maria Theresia Pöschko   +4 more
doaj   +1 more source

Hyperpolarized NMR Probes for Biological Assays

open access: yesSensors, 2014
During the last decade, the development of nuclear spin polarization enhanced (hyperpolarized) molecular probes has opened up new opportunities for studying the inner workings of living cells in real time.
Sebastian Meier   +3 more
doaj   +1 more source

Electrical Probes of the Non-Abelian Spin Liquid in Kitaev Materials

open access: yesPhysical Review X, 2020
Recent thermal-conductivity measurements evidence a magnetic-field-induced non-Abelian spin-liquid phase in the Kitaev material α-RuCl_{3}. Although the platform is a good Mott insulator, we propose experiments that electrically probe the spin liquid’s ...
David Aasen   +4 more
doaj   +1 more source

Spin polarization in half-metals probed by femtosecond spin excitation

open access: yesNature Materials, 2008
Knowledge of the spin polarization is of fundamental importance for the use of a material in spintronics applications. Here, we used femtosecond optical excitation of half-metals to distinguish between half-metallic and metallic properties. Because the direct energy transfer by Elliot-Yafet scattering is blocked in a half-metal, the demagnetization ...
Müller, Georg M.   +14 more
openaire   +3 more sources

Hot electron driven enhancement of spin-lattice coupling in 4f ferromagnets observed by femtosecond x-ray magnetic circular dichroism

open access: yes, 2011
Femtosecond x-ray magnetic circular dichroism was used to study the time-dependent magnetic moment of 4 fs electrons in the ferromagnets Gd and Tb, which are known for their different spin-lattice coupling.
Alexey Melnikov   +13 more
core   +1 more source

Non-linear Coulomb blockade microscopy of a correlated one-dimensional quantum dot

open access: yes, 2012
We evaluate the chemical potential of a one-dimensional quantum dot, coupled to an atomic force microscope tip. The dot is described within the Luttinger liquid framework and the conductance peaks positions as a function of the tip location are ...
Cavaliere, F.   +2 more
core   +1 more source

Probing chiral Kitaev spin liquids via dangling boundary fermions

open access: yesnpj Quantum Materials
Identifying experimental probes capable of diagnosing extreme quantum behavior is widely regarded as one of the foremost challenges in modern condensed matter physics.
Shang-Shun Zhang   +2 more
doaj   +1 more source

Hierarchy of exchange interactions in the triangular-lattice spin-liquid YbMgGaO$_{4}$

open access: yes, 2018
The spin-1/2 triangular lattice antiferromagnet YbMgGaO$_{4}$ has attracted recent attention as a quantum spin-liquid candidate with the possible presence of off-diagonal anisotropic exchange interactions induced by spin-orbit coupling. Whether a quantum
Armitage, N. P.   +9 more
core   +1 more source

Pump-Driven Opto-Magnetic Properties in Semiconducting Transition-Metal Dichalcogenides: An Analytical Model

open access: yesNanomaterials
Single-layer transition-metal dichalcogenides provide an unique intrinsic entanglement between the spin/valley/orbital degrees of freedom and the polarization of scattered photons.
Habib Rostami   +2 more
doaj   +1 more source

Spin Transport in a Mott Insulator of Ultracold Fermions

open access: yes, 2019
Strongly correlated materials are expected to feature unconventional transport properties, such that charge, spin, and heat conduction are potentially independent probes of the dynamics.
Cheuk, Lawrence W.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy