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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 2 of 2 (0.051 seconds)

Spelling suggestions: "subject:"molekulare magnete""

1

Tunable High-Field/ High-Frequency ESR and High-Field Magnetization on Single-Molecule Clusters / Abstimmbare Hochfeld/ Hochfrequenz ESR und Hochfeldmagnetisierung von Einzelmolekül-Clustern

Golze, Christian 07 January 2008 (has links) (PDF)
In this work, low dimensional iron group clusters have been studied by application of high magnetic fields. The magnetization has been probed with an MPMS as function of temperature and field. The combination with pulse field measurements up to 52\,T allowed determination of the magnetic exchange coupling parameters, and to probing the effective spin of the ground state. The main focus was on tunable high-field/high-frequency (tHF) ESR in static fields < 17 T and pulse field ESR up to 36 T. This magnetic resonance method has been used for the characterization of the local magnetic properties: The detailed analysis of the field dependence of dedicated spin states allowed to determine the magnetic anisotropy and g-factors. The results were analyzed in the framework of the appropriate effective spin Hamiltonians in terms of magnetization fits and ESR spectrum simulations.
molecular magnetism
single molecule magnets
SMM
magnetic anisotropy
magnetic clusters
nanomagnets
HF ESR
ESR
magnetic field
pulse field
pulsed field
magnetic resonance
electron paramagnetic resonance
g-factor
exchange coupled systems
molekulare magneten
einzelmolekülmagnet
SMM
magnetische anisotropie
magnetische cluster
nanomagnete
HF ESR
Hochfeld ESR
Elektronenspinresonanz
magnetische Resonanz
Pulsfeld
gepulste Felder
magnetischer Austausch
austauschgekoppelte Systeme
ddc:530
rvk:UP 6900
2

Tunable High-Field/ High-Frequency ESR and High-Field Magnetization on Single-Molecule Clusters

Golze, Christian 06 December 2007 (has links)
In this work, low dimensional iron group clusters have been studied by application of high magnetic fields. The magnetization has been probed with an MPMS as function of temperature and field. The combination with pulse field measurements up to 52\,T allowed determination of the magnetic exchange coupling parameters, and to probing the effective spin of the ground state. The main focus was on tunable high-field/high-frequency (tHF) ESR in static fields < 17 T and pulse field ESR up to 36 T. This magnetic resonance method has been used for the characterization of the local magnetic properties: The detailed analysis of the field dependence of dedicated spin states allowed to determine the magnetic anisotropy and g-factors. The results were analyzed in the framework of the appropriate effective spin Hamiltonians in terms of magnetization fits and ESR spectrum simulations.
info:eu-repo/classification/ddc/530
ddc:530

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