Results 51 to 60 of about 322,835 (189)

Probing Quantum Hall Pseudospin Ferromagnet by Resistively Detected NMR

open access: yes, 2009
Resistively Detected Nuclear Magnetic Resonance (RD-NMR) has been used to investigate a two-subband electron system in a regime where quantum Hall pseudo-spin ferromagnetic (QHPF) states are prominently developed. It reveals that the easy-axis QHPF state
C. Zhou   +9 more
core   +1 more source

Optically tunable nuclear magnetic resonance in a single quantum dot

open access: yes, 2010
We report optically detected nuclear magnetic resonance (ODNMR) measurements on small ensembles of nuclear spins in single GaAs quantum dots. Using ODNMR we make direct measurements of the inhomogeneous Knight field from a photoexcited electron which ...
A. Abragam   +7 more
core   +2 more sources

Augmenting microwave irradiation in MAS DNP NMR samples at 263 GHz

open access: yesEPJ Web of Conferences, 2018
The magnetic microwave field strength and its detailed spatial distribution in magic-angle spinning (MAS) nuclear magnetic resonance (NMR) probes capable of dynamic nuclear polarization (DNP) is investigated by numerical simulations with the objective to
Purea Armin   +4 more
doaj   +1 more source

Spectral Analysis and Structural Elucidation of Besifloxacin Hydrochloride

open access: yesChinese Journal of Magnetic Resonance, 2018
The ultraviolet spectra (UV), infrared spectra (IR), mass spectra (MS) and nuclear magnetic resonance (NMR) spectra (i.e., 1H NMR, 13C NMR, DEPT, HSQC, HMBC, COSY and NOESY) of besifloxacin hydrochloride were acquired and interpreted.
ZHANG Ming-guang   +4 more
doaj   +1 more source

Atomic coexistence of superconductivity and incommensurate magnetic order in the Ba(Fe1-xCox)2As2 pnictide

open access: yes, 2009
75As NMR and susceptiblity were measured in a Ba(Fe1-xCox)2As2 single crystal for x=6%. Nuclear Magnetic Resonance (NMR) spectra and relaxation rates allow to show that all Fe sites experience an incommensurate magnetic ordering below T=31K.
Bobroff, J.   +4 more
core   +1 more source

Ex vivo NMR metabolomics approach using cerebrospinal fluid for the diagnosis of primary CNS lymphoma: Correlation with MR imaging characteristics

open access: yesCancer Medicine, 2023
Purpose Primary central nervous system lymphoma (PCNSL) is an uncommon extranodal non‐Hodgkin's lymphoma. Here, the feasibility of nuclear magnetic resonance (NMR) metabolomics for the diagnosis and prognosis prediction of PCNSL, as well as its ...
Jae Hyun Kim   +5 more
doaj   +1 more source

NMR Probing Spin Excitations in the Ring-Like Structure of a Two-Subband System

open access: yes, 2006
Resistively detected nuclear magnetic resonance (NMR) is observed inside the ring-like structure, with a quantized Hall conductance of 6e^2/h, in the phase diagram of a two subband electron system.
Jiang, H. W., Scott, G., Zhang, X. C.
core   +1 more source

Spin-modulated quasi-1D antiferromagnet LiCuVO_4

open access: yes, 2007
We report on magnetic resonance studies within the magnetically ordered phase of the quasi-1D antiferromagnet LiCuVO_4. Our studies reveal a spin reorientational transition at a magnetic field H_c1 ~ 25 kOe applied within the crystallographical (ab ...
Assmus, W.   +5 more
core   +1 more source

Spectral Analyses of Ecabet Sodium

open access: yesChinese Journal of Magnetic Resonance, 2018
Ultraviolet (UV) spectrum, infrared (IR) spectrum, high resolution-mass spectrum (HR-MS), nuclear magnetic resonance (NMR) spectra (i.e., 1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-13C HSQC and 1H-13C HMBC) of ecabet sodium were collected and analyzed to ...
JI Xiao-long, YU Shui-tao, CHEN Zai-xin
doaj   +1 more source

Colloidal Assemblies of Oriented Maghemite Nanocrystals and their NMR Relaxometric Properties

open access: yes, 2014
Elevated-temperature polyol-based colloidal-chemistry approach allows for the development of size-tunable (50 and 86 nm) assemblies of maghemite iso-oriented nanocrystals, with enhanced magnetization.
Bordonali, L.   +9 more
core   +1 more source

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