Pulsed EPR with Field Cycling and a Bridged Loop–Gap Resonator Made by Chemical Deposition of Silver

Sturm, G.; Lötz, Albert; Voitländer, J.

doi:10.1006/jmre.1997.1183

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The technique was first implemented by Krzystek et al [173]. An FFC instrument was recently developed at Munich [25,174]. Imaging applications have been developed by the group at Aberdeen in the last years [24].…”

Section: Field-cycled Endor Spectroscopymentioning

confidence: 99%

Fast-field-cycling NMR: Applications and instrumentation

Anoardo¹,

Galli²,

Ferrante³

2001

Appl. Magn. Reson.

195

136

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Magnetic field cycling in nuclear magnetic resonance (NMR) experiments has been used since the early days of NMR. Originally such time-dependent magnetic field experiments were motivated to study cross relaxation, spin system thermodynamics and indirect detection of quadrupolar resonance. The first apparatus used mechanical or pneumatic systems to shoot the sample between two magnets, the typical "flying time" being a few hundreds of milliseconds. As a natural evolution of the experimental technique and the need to extend its application to samples with higher relaxation rates, faster magnetic field switching devices were developed during the last years. Special electric networks combined with sophisticated air core magnets allowed one to switch magnetic fields between zero and fields of the order of 0.5 T in a few milliseconds. Today we refer to this new generation of instruments as "fast-field-cycling" devices. The technique has been successfully used during the last years to obtain information on the molecular dynamics and order in different materials, ranging from organic solids, metals, polymers, liquid crystals, porous media to biological systems. At present it is also turning to be an important tool for the design of contrast agents for magnetic resonance imaging. Fast field cycling was mainly oriented to T, relaxometry as a unique technique offering a dynamic window of several decades, ranging from few kilohertz to several megahertz. However, there exist less conventional applications of the technique that can also provide relevant information concerning molecular dynamics, structure and molecular order. In this article we will briefly deal with basic aspects of the technique, its evolution, present-day relevant applications and the last improvements concerning specialized instrumentation.

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Section: Field-cycled Endor Spectroscopymentioning

confidence: 99%

Fast-field-cycling NMR: Applications and instrumentation

Anoardo¹,

Galli²,

Ferrante³

2001

Appl. Magn. Reson.

195

136

View full text Add to dashboard Cite

show abstract

“…The first field-cycled ENDOR experiment was described in 1994 by Krzystek et al,(5), who used a CW detection of the electronic magnetization. The pulsed detection introduced by us (6,7) extends the general usability of fieldcycled ENDOR. Recently, we reported the first detection of hyperfine transitions using field-cycling techniques (8).…”

Section: Introductionmentioning

confidence: 98%

Detection of Anisotropic Hyperfine Transitions in Zero Magnetic Field Using Field-Cycling Techniques

Sturm

Kilian

Lötz

et al. 2000

Journal of Magnetic Resonance

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“…FC permits a great variety of applications: obtaining detailed information on the spectral density of fluctuating spin interactions (1-3), zero field spectroscopy (4-6), nuclear quadrupole double resonance spectroscopy (7), NQR imaging (8,9), field cycling EPR (10,11). Recently, the use of FC NMR has been shown to provide access to diffusion measurements under magic-angle field rotation conditions (12).…”

Section: Introductionmentioning

confidence: 99%