Y3-xBa3+xCu6O14+δ system: A new family of superconductors

Compounds of the Y3-x Ba3+x Cu6O14+δ system, which YBa2Cu3O7-δ (x = 1) is member, have been prepared. A relatively low temperature nitrate decomposition method gives almost single phase compounds with tetragonal structure. The phases are metastable and show superconducting transitions (zero-resistance) around 50K.

Patrick and Susan Matthiesen playing chess at Aenny Catzenstein nee Gottschalk's 80th birthday; London Portraits Family

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Family and guests at Aenny Catzenstein nee Gottschalk's 80th birthday; London.

Front row l-r: Beatrice Durand, Francine Durand and Aenny Catzenstein, the boys are Ara-Serge Donabedian and Patrick Matthiesen and the adults are Susan Prior, Francis Matthiesen, Maren Matthiesen, Nino Fabri and Olga Matthiesen,

Interatomic Auger transitions in transition-metal oxides

Interatomic L3(M)M23(M)V(O) and L3(M)V(O)V(O) Auger transitions of some transition-metal oxides are reported for the first time. The interatomic mode of decay becomes progressively more dominant (relative to the intra-atomic mode) as the metal d level gets depleted or as the oxidation state of the metal increases. The usefulness of interatomic Auger transitions in studying oxidation of metals has been examined.

Family and guests at Aenny Catzenstein nee Gottschalk's 80th birthday party; London.

Dinner scene with Franz Mattheisen left, daughter Susan Mattheisen next to him, next daughter Maren Matthiesen, his wife Olga Matthiesen at the end of the table. Beatrice Durand is facing the camera

Gottschalk family on vacation; Norderney, Germany.

Left to right: two unidentified women, Kurt Gottschalk, Therese Gottschalk nee Molling, Fritz Gottschalk, unidentified woman (the maid?), and Elizabeth Gottschalk

Gottschalk family on vacation in front of Kurhaus Brunig; Norderney, Germany.

From left to right: man with camera: Karl Gottschalk; sitting on stairs: Fritz Gottschalk, unidentified woman, Therese Gottschalk nee Molling, Hans Ludwig, Kurt Gottschalk, unidentified woman (maid?) and Elizabeth Gottschalk

Family of Dr. Max and Helen Bejach portraits family

unidentified family members

Lola and George Gruenthal in Neu-Ulm Portraits Family

"When will you come back?" (written in German on verso)