Large out-of-plane ferroelectric polarization in flat epitaxial BaTiO3 on CoFe2O4 heterostructures

2013 ◽  
Vol 102 (17) ◽  
pp. 172907 ◽  
Author(s):  
N. Dix ◽  
I. Fina ◽  
R. Bachelet ◽  
L. Fàbrega ◽  
C. Kanamadi ◽  
...  
Keyword(s):  
Ferroelectric Polarization ◽  
Out Of Plane

scholarly journals Resistive switching behavior in α-In2Se3 nanoflakes modulated by ferroelectric polarization and interface defects

RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30565-30569 ◽  
Author(s):  
Pengfei Hou ◽  
Siwei Xing ◽  
Xin Liu ◽  
Cheng Chen ◽  
Xiangli Zhong ◽  
...  
Keyword(s):  
Resistive Switching ◽  
Oxygen Vacancies ◽  
Switching Behavior ◽  
Ferroelectric Polarization ◽  
Resistive Switching Behavior ◽  
Free Carriers ◽  
Interface Defects ◽  
Out Of Plane ◽  
Planar Device

A planar device based on an α-In2Se3 nanoflake, in which the in-plane/out-of-plane polarization, free carriers and oxygen vacancies in SiO2 contribute to the resistive switching behavior of the device.

Giant tunneling electroresistance in two-dimensional ferroelectric tunnel junctions with out-of-plane ferroelectric polarization

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Lili Kang ◽  
Peng Jiang ◽  
Hua Hao ◽  
Yanhong Zhou ◽  
Xiaohong Zheng ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Ferroelectric Polarization ◽  
Two Dimensional ◽  
Out Of Plane

Grain separation enhanced magnetic coercivity in Pt/Co multilayers.

1993 ◽  
Vol 51 ◽  
pp. 1038-1039 ◽  
Author(s):  
G.A. Bertero ◽  
R. Sinclair
Keyword(s):  
Remanent Magnetization ◽  
Strong Influence ◽  
Uniaxial Anisotropy ◽  
Magnetic Coupling ◽  
Recording Media ◽  
Magnetic Media ◽  
Signal To Noise ◽  
Out Of Plane ◽  
Longitudinal Recording ◽  
The Relationship

Pt/Co multilayers displaying perpendicular (out-of-plane) magnetic anisotropy and 100% perpendicular remanent magnetization are strong candidates as magnetic media for the next generation of magneto-optic recording devices. The magnetic coercivity, Hc, and uniaxial anisotropy energy, Ku, are two important materials parameters, among others, in the quest to achieving higher recording densities with acceptable signal to noise ratios (SNR). The relationship between Ku and Hc in these films is not a simple one since features such as grain boundaries, for example, can have a strong influence on Hc but affect Ku only in a secondary manner. In this regard grain boundary separation provides a way to minimize the grain-to-grain magnetic coupling which is known to result in larger coercivities and improved SNR as has been discussed extensively in the literature for conventional longitudinal recording media.We present here results from the deposition of two Pt/Co/Tb multilayers (A and B) which show significant differences in their coercive fields.

Anisotropy of Nanoindentation – a tool for the determination of nanocrystal orientation ?

2003 ◽  
Vol 779 ◽  
Author(s):  
David Christopher ◽  
Steven Kenny ◽  
Roger Smith ◽  
Asta Richter ◽  
Bodo Wolf ◽  
...  
Keyword(s):  
Crystal Surface ◽  
Scanning Force Microscopy ◽  
Depth Range ◽  
Dislocation Loops ◽  
Force Microscopy ◽  
Pile Up ◽  
Out Of Plane ◽  
Scanning Force ◽  
Dynamics Simulations

AbstractThe pile up patterns arising in nanoindentation are shown to be indicative of the sample crystal symmetry. To explain and interpret these patterns, complementary molecular dynamics simulations and experiments have been performed to determine the atomistic mechanisms of the nanoindentation process in single crystal Fe{110}. The simulations show that dislocation loops start from the tip and end on the crystal surface propagating outwards along the four in-plane <111> directions. These loops carry material away from the indenter and form bumps on the surface along these directions separated from the piled-up material around the indenter hole. Atoms also move in the two out-of-plane <111> directions causing propagation of subsurface defects and pile-up around the hole. This finding is confirmed by scanning force microscopy mapping of the imprint, the piling-up pattern proving a suitable indicator of the surface crystallography. Experimental force-depth curves over the depth range of a few nanometers do not appear smooth and show distinct pop-ins. On the sub-nanometer scale these pop-ins are also visible in the simulation curves and occur as a result of the initiation of the dislocation loops from the tip.

Sign in / Sign up

Export Citation Format

Share Document