3 edition of Pulsed electron paramagnetic resonance in high magnetic fields using far infrared lasers found in the catalog.
Pulsed electron paramagnetic resonance in high magnetic fields using far infrared lasers
|Statement||vorgelegt von Christopher Kotter.|
|Series||Konstanzer Dissertationen -- 464|
|LC Classifications||TA1696 .K88 1995|
|The Physical Object|
|Pagination||iv, 119 p. :|
|Number of Pages||119|
The combination of a 60 T pulsed-field magnet and the continuous tunability of a high power, picosecond free-electron laser provides a powerful facility to study, e.g. cyclotron resonance . Electron paramagnetic resonance (EPR) = Electron spin resonance (ESR) spectroscopy Same underlying physical principles as in nuclear magnetic resonance (NMR) One unpaired (free) electron: Zeeman effect: ∆𝑈=𝑔 𝑒 𝑔= ℎ𝜈 𝑒 (resonance condition) g: g factor for free electron: g e = b e: Bohr magneton.
The Table of Contents for the book is as follows: * Resonant Polaron Effect of Shallow Indium Donors in CdTe * Magnetic Resonance of Dopants and Defects in GaN-Based Materials and Devices * Some Aspects of the Hydrogen-Dopant Interactions in Compound Semiconductors * Shallow Electronic Traps Associated with Hydrogen Complexes in Crystalline Silicon * Author: C. A. J. Ammerlaan, B. Pajot. EMR stands for electron magnetic resonance. EMR is very similar to the two other resonance techniques that take place here at the lab: nuclear magnetic resonance (NMR) and ion cyclotron resonance (ICR). The big difference is that EMR looks at electrons rather than nuclei (which is the case in NMR).
The pulsed high-magnetic-field facility is the first major science and technology infrastructure project that will be built by the Huazhong University of Science and Technology under the direct leadership of the Ministry of Education as part of the National Key Science and Technology Basic Establishment Project for high magnetic field. Magnetic and thermal diffusion in pulsed high-field magnets Liang Li and Fritz Herlach-Recent citations for a free electron with charge ein a magnetic induction ﬁeld B. At T this is nm and , leading to the ﬁrst experiments with far infrared resonance . In Western Europe, pulsed-ﬁeld laboratories were established.
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Principles of Pulse Electron Paramagnetic Resonance 1st Edition as a guide-book in this rapidly developing field of science. But this book will be extremely useful not only for beginners. Even experienced practitioners in the filed will gain a fresh look from the high-level experts at the opportunities for new applications and further Cited by: Magnetic Excitations in Random Systems in High Magnetic Fields Far Infrared Paramagnetic Resonances in Dyal Garnet Ferromagnetic Resonance in 3d Metals at High Magnetic Fields on the EPR of 3d4 and 3d6 Ions at High Magnetic Fields Submillimeter Wave ESR of CsFeCl3 in a Pulsed High Magnetic Field Chapter 9.
SemiconductorsBook Edition: 1. A free-electron laser is used to power a pulsed electron paramagnetic resonance spectrometer at GHz, demonstrating a range of experimental possibilities such as the manipulation of spin-1/2.
Here we present results from a pulsed EPR spectrometer powered by a free-electron laser (FEL). The spectrometer operates at T ( GHz), and can be powered either by a mW, GHz solid-state source or by UCSB’s millimetre-wave FEL (mm-FEL), with a maximum power of 1 kW.
The use of molecular gas lasers in the far-IR and IR ranges, as well as YAG and He-Ne lasers in the near-IR range, has led to the discovery of novel phenomena that are typical of extremely high magnetic fields (in the megagauss range) in semiconductors, semimetals, and magnetic Author: N.
Miura. Far-infrared and strong pulsed magnetic fields. Abstract. Experiments with FIR radiation in strong pulsed magnetic fields are reviewed. Different techniques for the generation of pulsed magnetic fields are described, mainly with capacitor discharges in the field ranges 20–60 T (nondestructive) and – T (destructive).Author: Fritz Herlach, Luc Van Bockstal.
Pulsed high-field / high-frequency EPR offers the possibility to detect coherences and relaxation properties in disordered samples in much detail. The reason is the spectrally resolved G-tensor, which allows to obtain orientation dependent information even in Cited by: 9.
High-field/high frequency EPR spectroscopy measurements are shown. Experiments were carried out at and GHz frequencies. The employed apparatus uses a novel combination of far infrared molecular lasers and of probehead exploiting dielectric resonators working in the whispering gallery modes.
The free electron laser Free electron Laser for Advanced spectroscopy and high Resolution Experiments (FLARE) at the FELIX Laboratory generates powerful radiation in the frequency range of –3 THz. This light, in combination with 33 T Bitter magnets at the High Field Magnet Laboratory, provides the unique opportunity to perform THz magneto spectroscopy with light Cited by: 5.
Schweiger, A., Jeschke, G.:Principles of Pulse Electron Paramagneticpp. Oxford University Press, Oxford Cited by: 1.
The performance of the THz spectrometer is measured via high-field electron spin resonance (ESR) in the paramagnetic benchmark system 2,2-diphenylpicrylhydrazyl (DPPH). The narrow ESR linewidth of DPPH allows us to resolve a fine structure with 3 GHz spacing, demonstrating a considerable coherence of the individual THz micropulses of by: 5.
During the past 2 years we have witnessed significant advances mainly in high-field multi-frequency EPR with applications to magnetic materials and systems with large zero-field splittings, in high-field electron nuclear double resonance (ENDOR), in the computation of g tensors and understanding of environmental effects on them, in the Cited by: A novel electron paramagnetic resonance (EPR) spectrometer is reported, which has been developed to allow pulsed EPR experiments with high sensitivity and time resolution at a microwave (MW) frequency of GHz (G-band) and wavelengths of approximately mm.
Pulse EPR (electron paramagnetic resonance) is one of the newest and most widely used techniques for examining the structure, function and dynamics of biological systems and synthetic materials. Until now, however, there has been no single text dedicated to this growing area of research. This text addresses the need for a comprehensive overview of Pulse EPR.
Pulsed high-field/high-frequency EPR ( T magnetic field, 95 GHz microwave frequency) is performed on the primary electron acceptor ubisemiquinone. Modern Developments and Prospects in Multi Frequency High Field EMR. A., and Brunel, L.-C.,High-Frequency and -Field Electron Paramagnetic Resonance of High-Spin Manganese(III) in Axially Transitions in a Paramagnetic Nickel(II) Complex Using Far-Infrared Magnetic Spectroscopy: a New Method for Studying.
A multifrequency high-ﬁeld pulsed electron paramagnetic resonance/ electron-nuclear double resonance spectrometer Gavin W. Morley,a Louis-Claude Brunel, and Johan van Tol Center for Interdisciplinary Magnetic Resonance, National High Magnetic Field.
Shubnikov-de Haas oscillation and cyclotron resonance were studied for high mobility p-type Ge channels in strained Ge/Si1−x Ge x quantum wells, using pulsed high magnetic fields. Late 50s: pioneering high-field ESR works of M. Date in Japan s: ESR in USSR, France and Germany 90s: ESR in UK, USA, Hungary, Italy, etc.
ESR = Electron Spin Resonance = EPR = Electron Paramagnetic Resonance = EMR = Electron Magnetic Resonance. Electromagnetic sources are the bottleneck in the development of high-power pulsed EPR at high magnetic ﬁelds. Most high-power pulsed EPR spectrometers in the world operate at T (f Larmor= GHz) or T (f Larmor=34 GHz) and are powered by vacuum electronic devices called traveling wave tube ampliﬁers .
This book provides an introduction to the underlying theory, fundamentals, and applications of EPR spectroscopy, as well as new developments in the area.
Knowledge of the topics presented will allow the reader to interpret of a wide range of EPR spectra, as well as help them to apply EPR techniques to problem solving in a wide range of areas: organic, inorganic. Static magnetic fields result from either fixed magnets or the magnetic flux resulting from the flow of direct current (DC).
Sources producing these fields include (but are not limited to) the following: Nuclear Magnetic Resonance (NMR) imaging and spectroscopy devices; Electron Paramagnetic Resonance (EPR, ESR, EMR) devices.Electron paramagnetic resonance (EPR), also called electron-spin resonance (ESR), selective absorption of weak radio-frequency electromagnetic radiation (in the microwave region) by unpaired electrons in the atomic structure of certain materials that simultaneously are subjected to a constant, strong magnetic unpaired electrons, because of their spin, behave like .