1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Influence of uniaxial stress on the ferroelectric-to-paraelectric phase change in barium titanate
Rent:
Rent this article for
USD
10.1063/1.4799581
/content/aip/journal/jap/113/17/10.1063/1.4799581
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4799581

Figures

Image of FIG. 1.
FIG. 1.

Dielectric permittivity of polycrystalline BaTiO as a function of temperature. The Curie point was determined from the maximum in the permittivity curve. The Curie-Weiss temperature and the Curie constant were obtained from linear regression fits to plots of the inverse dielectric permittivity temperature at 170 °C < < 200 °C.

Image of FIG. 2.
FIG. 2.

Dielectric permittivity of single crystal (a) and polycrystalline (b) BaTiO as a function of compressive stress measured during heating. A constant uniaxial compressive stress between −0.8 and −30 MPa (single crystal) and −0.8 and−300 MPa (polycrystalline) was applied. Small signal dielectric measurements were performed at 1 kHz.

Image of FIG. 3.
FIG. 3.

Schematic showing the polarization direction in stressed and unstressed 〈001〉 single crystal BaTiO during permittivity-temperature measurements. The permittivity was measured parallel to the dashed line, which is also parallel to the direction of applied compressive stress, .

Image of FIG. 4.
FIG. 4.

Measured exponent γ in Eq. (2) of single crystal (a) and polycrystalline (b) BaTiO. In the case of the polycrystalline samples (b), five measurements were carried out at each load step.

Image of FIG. 5.
FIG. 5.

Shift of Curie point and Curie-Weiss temperature of single crystal (a) and polycrystalline (b) BaTiO due to uniaxial mechanical compressive stress. For polycrystalline BaTiO, five measurements were carried out at each load step to ensure repeatability.

Image of FIG. 6.
FIG. 6.

The Curie constant as a function of uniaxial stress for single crystal (a) and polycrystalline (b) BaTiO.

Image of FIG. 7.
FIG. 7.

Comparison between experimental Curie point (black squares) and Curie-Weiss temperature (red circles) data and model predictions for single crystal (a) and polycrystalline (b) samples. For comparison, predictions from both high and low stress relations are shown.

Tables

Generic image for table
Table I.

Material parameters for single crystal BaTiO.

Generic image for table
Table II.

The parameters and for single crystal and polycrystalline BaTiO

Loading

Article metrics loading...

/content/aip/journal/jap/113/17/10.1063/1.4799581
2013-05-01
2014-04-18
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of uniaxial stress on the ferroelectric-to-paraelectric phase change in barium titanate
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4799581
10.1063/1.4799581
SEARCH_EXPAND_ITEM