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Magnetostrictive, magnetic, and transport properties of correlated electron systems

Magnetostrictive, magnetic, and transport properties of correlated electron systems

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Prüfsumme: MD5:9c6ccabc36c944694d382f31e99cb489

SCHLESER, Roland, 2002. Magnetostrictive, magnetic, and transport properties of correlated electron systems [Dissertation]. Konstanz: University of Konstanz. Konstanz : Hartung-Gorre. ISBN 3-89649-774-X

@phdthesis{Schleser2002Magne-8924, title={Magnetostrictive, magnetic, and transport properties of correlated electron systems}, year={2002}, author={Schleser, Roland}, address={Konstanz}, school={Universität Konstanz} }

Schleser, Roland Magnetostrictive, magnetic, and transport properties of correlated electron systems Schleser, Roland 3-89649-774-X The main objective of the present work is the investigation of the vortex state in type II superconductors using the magnetostriction technique as a tool together with other, complementary methods.<br />In this context, the possibilities of magnetostriction as well as its limitations have been intensively studied. Its staticity and its resolution especially at high magnetic fields have proven to be extremely useful in the study of the 'peak effect' region and thermomagnetic history dependence effects.<br />Measurements on both polycristalline NbTi and single crystalline 2H-NbSe2 samples have been performed. A comparative study of scaling in the peak region and at intermediate magnetic fields shows that the non-applicability of scaling laws at high fields does not have to be considered as a hallmark of an anomalous peak effect. Geometrical scaling of the field range of coexistence of the stable ordered and the disordered vortex phases evidence against a first order thermodynamic phase transition into the peak region. A new type of magnetic history dependence at low and intermediate magnetic fields has been found and tentatively ascribed to the propagation of metastable vortex structures. Magnetostriktive, magnetische und Transport-Eigenschaften korrelierter Elektronensysteme 2002 Konstanz : Hartung-Gorre deposit-license 2011-03-24T17:51:42Z eng 2011-03-24T17:51:42Z application/pdf

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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