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Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 3: Dielectric, Elastic and Electromechanical Properties

KFM 3.2: Talk

Monday, March 16, 2020, 12:20–12:40, HSZ 105

Glass ceramics with magnetic crystalline phases for high frequency applications — •Moritz Maximilian Benjamin Krämer1,2, Martin Letz1, Martun Hovhannisyan1, and Martin Jourdan21SCHOTT AG, Mainz, Germany — 2Johannes Gutenberg University, Mainz, Germany

New generations of mobile data transmittance use higher frequencies to enable significantly higher data rates. The steady frequency increase and especially the step to 5G requires new manufacturing accuracies of high frequency electronic devices. For higher frequencies and smaller wavelengths the requirements to geometric tolerances and material homogeneity increase. Substantially higher accuracies are only accessible by better material homogeneity. Conventional ceramics have a restricted material homogeneity due to pores, thus a new glass ceramic obtained from a true amorphous glassy state possibly enables to reach new applications in the field of mobile data electronic devices. We investigate glass forming regions in the field of crystallization of ferrimagnetic phases. The talk will report on the latest progress in stabilizing the glass as a bulk sample of several cm in order to obtain controlled crystallization.

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