نتایج جستجو برای: jahn
تعداد نتایج: 1797 فیلتر نتایج به سال:
Ellen Heitzer ([email protected]) Sigurd Lax ([email protected]) Ingrid Lafer ([email protected]) Stephanie M Müller ([email protected]) Gunda Pristauz ([email protected]) Peter Ulz ([email protected]) Stephan Jahn ([email protected]) Christoph Högenauer ([email protected]) Edgar Petru ([email protected]) M...
In an attempt to find a method for the determination of iron that could be used for the clinical study of iron metabolism, certain calorimetric procedures (1, 2) were studied. Some difficulties were encountered with these techniques and especially in their adaptation to the measurement of minute amounts of iron in such diverse materials as blood, food, feces, and urine. This led to the investig...
An angle-swept high-frequency electron paramagnetic resonance HFEPR technique is described that facilitates efficient in situ alignment of single-crystal samples containing low-symmetry magnetic species such as single-molecule magnets SMMs . This cavity-based technique involves recording HFEPR spectra at fixed frequency and field, while sweeping the applied field orientation. The method is appl...
A series of mononuclear Mn(II), Mn(III), and Mn(IV) complexes was prepared using a single tripodal ligand (H(3)L). Addition of a cation (NH(4)(+), K(+), Na(+)) to [Mn(III)L] showed a pronounced effect on the redox potentials. Different variants of Jahn-Teller distortion, axial elongation and compression, were observed in the Mn(III) complexes.
Band Jahn-Teller type structural instabilities of cubic Mn(2)YZ Heusler compounds causing tetragonal distortions can be predicted by ab initio band-structure calculations. This allows for identification of new Heusler materials with tunable magnetic and structural properties that can satisfy the demands for spintronic applications, such as in spin-transfer torque-based devices.
1 Competence Centre for Functional Genomics, Institute for Microbiology, Ernst-Moritz-Arndt-University Greifswald, F.-L.-Jahn-Str. 15, 17487 Greifswald, Germany, [email protected] [email protected] 2 Institute for Biochemistry and Biology, University of Potsdam, c/o Max Planck Institute for Molecular Plant Physiology Am Mühlenberg 1, 14424 Potsdam, Germany, Selb...
In an attempt to find a method for the determination of iron that could be used for the clinical study of iron metabolism, certain calorimetric procedures (1, 2) were studied. Some difficulties were encountered with these techniques and especially in their adaptation to the measurement of minute amounts of iron in such diverse materials as blood, food, feces, and urine. This led to the investig...
and theoretical study of a Mn(III)-Cu(II) dimer containing a Jahn-Teller compressed Mn ion' Dalton Transactions, vol 42, no. 1, pp. 207-216. General rights Copyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal...
The stability of the charge-stacked structure vis-à-vis the charge-alternate structure in the half-doped manganites is studied with a model that includes electronic kinetic energy, onsite and intersite Coulomb interactions, the Jahn–Teller energy, and the antiferromagnetic superexchange between the manganese core spins. It is shown that for a single zigzag chain, the electronic kinetic energy s...
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