scholarly journals Pyroelectric Properties of Bismuth Borate BZBO Single Crystals

Crystals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 64
Author(s):  
Feifei Chen ◽  
Chao Jiang ◽  
Xiufeng Cheng ◽  
Xian Zhao
Keyword(s):  
Single Crystals ◽  
Integration Method ◽  
High Current ◽  
Temperature Dependent ◽  
Pyroelectric Properties ◽  
Bismuth Borate ◽  
Charge Integration

Pyroelectric properties of orthorhombic Bi2ZnB2O7 (BZBO) crystals were investigated by using the charge integration method. The primary and the secondary pyroelectric coefficients of BZBO crystals were found to be 6.4 and −6.5 µC/(m2·°C), respectively. The pyroelectric performance was evaluated by different figure of merits (FOMs), where BZBO crystals possessed relatively high current responsivity Fi (10.38 pm/V), and detectivity Fd (11.31 × 10−5/Pa1/2). In addition, the temperature dependent behaviours of primary pyroelectric coefficients and FOMs were studied from 15 °C to 155 °C; the pyroelectric properties were found to decrease with increases in temperature.

Magnetic properties of undoped and Co-doped n-type β–FeSi2.5 single crystals

2002 ◽  
Vol 17 (11) ◽  
pp. 2960-2965 ◽  
Author(s):  
E. Arushanov ◽  
L. Ivanenko ◽  
D. Eckert ◽  
G. Behr ◽  
U. K. Rößler ◽  
...  
Keyword(s):  
Activation Energy ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
External Field ◽  
Single Crystals ◽  
Spin Glasses ◽  
Paramagnetic Centers ◽  
Temperature Dependent ◽  
Paramagnetic Curie Temperature ◽  
Co Doped

Results of magnetization and magnetic susceptibility measurements on undoped and Co-doped FeSi2.5 single crystals are presented. The temperature dependence of the magnetic susceptibility of the Co-doped sample in the range of 5–300 K can be explained by temperature-dependent contributions due to paramagnetic centers and the carriers excited thermally in the extrinsic conductivity region. The values of the paramagnetic Curie temperature and activation energy of the donor levels were estimated. It is also shown that the magnetic susceptibility of Co-doped samples cooled in zero external field and in a field are different. This resembles the properties of spin-glasses and indicates the presence of coupling between magnetic centers.

The mechanism of work-hardening and slip-band formation

1957 ◽  
Vol 242 (1229) ◽  
pp. 147-159 ◽  
Keyword(s):  
Single Crystals ◽  
Slip Band ◽  
Work Hardening ◽  
Stage I ◽  
Polycrystalline Materials ◽  
Temperature Dependent ◽  
Band Formation ◽  
Slip Bands ◽  
Three Stages ◽  
The Difference

A summary is given of some present ideas on the mechanism of work-hardening of single crystals and polycrystalline materials. In particular, the difference is stressed between the three stages of hardening: stage I, or easy glide; stage II, the region of rapid hardening accompanied by short slip lines; and stage III, the region of slow or parabolic hardening which is temperature-dependent and in which long slip bands are formed.

Temperature-dependent Raman scattering study of tin modified PbZrO3 and PbHfO3 single crystals

2015 ◽  
Vol 644 ◽  
pp. 854-861 ◽  
Author(s):  
I. Jankowska-Sumara ◽  
M. Ptak ◽  
M. Mączka ◽  
A. Majchrowski ◽  
T.H. Kim ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Temperature Dependent ◽  
Scattering Study

scholarly journals Temperature-Dependent As K-Edge EXAFS Studies of LaFe 1−x Co x AsO (x = 0.0 and 0.11) Single Crystals

2016 ◽  
Vol 29 (12) ◽  
pp. 3041-3047 ◽  
Author(s):  
Boby Joseph ◽  
Alessandro Ricci ◽  
Nicola Poccia ◽  
Valentin G. Ivanov ◽  
Andrey A. Ivanov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Temperature Dependent

Temperature dependent photoluminescence studies of ZnSe:I single crystals grown by chemical vapor transport

Pramana ◽  
1996 ◽  
Vol 47 (2) ◽  
pp. 133-143 ◽  
Author(s):  
Suruchi Anand ◽  
Prabhat Verma ◽  
S C Abbi ◽  
K P Jain ◽  
M J Tafreshi ◽  
...  
Keyword(s):  
Single Crystals ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Temperature Dependent ◽  
Photoluminescence Studies ◽  
Temperature Dependent Photoluminescence

The Temperature-Dependent Ideal Shear Strength of Solid Single Crystals

2018 ◽  
Vol 85 (3) ◽  
Author(s):  
Tianbao Cheng ◽  
Daining Fang ◽  
Yazheng Yang
Keyword(s):  
Shear Strength ◽  
Theoretical Model ◽  
Melting Point ◽  
Single Crystals ◽  
Elevated Temperatures ◽  
Absolute Zero ◽  
Temperature Dependent ◽  
Temperature Changes ◽  
First Time ◽  
The Ideal

Knowledge of the ideal shear strength of solid single crystals is of fundamental importance. However, it is very hard to determine this quantity at finite temperatures. In this work, a theoretical model for the temperature-dependent ideal shear strength of solid single crystals is established in the view of energy. To test the drawn model, the ideal shear properties of Al, Cu, and Ni single crystals are calculated and compared with that existing in the literature. The study shows that the ideal shear strength first remains approximately constant and then decreases almost linearly as temperature changes from absolute zero to melting point. As an example of application, the “brittleness parameter” of solids at elevated temperatures is quantitatively characterized for the first time.

Depth profiling of dopant concentration and pyroelectric properties of LiNbO3 single crystals treated at high-temperature in the presence of metal ions

2019 ◽  
Vol 539 (1) ◽  
pp. 146-152 ◽  
Author(s):  
G. Suchaneck ◽  
U. V. Yakhnevych ◽  
A. Eydam ◽  
D. Yu. Sugak ◽  
I. I. Syvorotka ◽  
...  
Keyword(s):  
High Temperature ◽  
Metal Ions ◽  
Single Crystals ◽  
Dopant Concentration ◽  
Depth Profiling ◽  
Pyroelectric Properties
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