Ferroic Properties in Individual and Multi-Component Nanostructures: The Influence of Size, Shape, and Interfacial Coupling

2021 ◽  
Author(s):  
Stephanie Howell Johnson
Keyword(s):  
Interfacial Coupling ◽  
Ferroic Properties

scholarly journals Using Amorphous CoB Alloy as Transducer to Detect Acoustic Propagation and Heat Transport at Interface

2021 ◽  
Vol 11 (11) ◽  
pp. 5155
Author(s):  
Liu Jian ◽  
Gyung-Min Choi
Keyword(s):  
Heat Transport ◽  
Sapphire Substrate ◽  
Intermediate Layer ◽  
Thermal Conductance ◽  
Acoustic Oscillation ◽  
Acoustic Propagation ◽  
Acoustic Oscillations ◽  
Interfacial Coupling ◽  
Soft Layer ◽  
Substrate Interface

Acoustic oscillation provides useful information regarding the interfacial coupling between metal transducer layers and substrate materials. The interfacial coupling can be significantly reduced by a mechanically soft layer between the transducer and substrate. However, preserving a thin, soft layer at the interface during fabrication is often challenging. In this study, we demonstrate that an amorphous CoB alloy on top of a sapphire substrate can substantially amplify acoustic oscillations. By analyzing the attenuation of acoustic oscillations, we show that a thin, soft layer with a thickness of >2 ± 1 Å exists at the interface. The intermediate layer at the interface is further verified by investigating heat transport. By analyzing the slow decrease of the temperature of the transducer layer, we determine a thermal conductance of 35 ± 5 MW m−2 K−1 at the transducer/substrate interface. This low value supports the existence of a thin, soft layer at the interface. Our results demonstrate that an amorphous metal with B alloying effectively preserves the soft nature at the interface and detects the acoustic propagation and heat transport across it.

Secondary ferroic properties of ferroelectric crystals

2009 ◽  
Vol 51 (7) ◽  
pp. 1420-1425 ◽  
Author(s):  
S. V. Akimov ◽  
E. F. Dudnik
Keyword(s):  
Ferroelectric Crystals ◽  
Ferroic Properties

Porous Metal Oxides and Composites with Ferroic Properties

2012 ◽  
Vol 638 (10) ◽  
pp. 1577-1577 ◽  
Author(s):  
Stefanie Haffer ◽  
Christian Lüder ◽  
Stefan Ebbinghaus ◽  
Roberto Köferstein ◽  
Till Walther ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Porous Metal ◽  
Porous Metal Oxides ◽  
Ferroic Properties

scholarly journals Superconductivity induced by interfacial coupling to magnons

2018 ◽  
Vol 97 (11) ◽  
Author(s):  
Niklas Rohling ◽  
Eirik Løhaugen Fjærbu ◽  
Arne Brataas
Keyword(s):  
Interfacial Coupling
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