Relaxation of the normal electrical resistivity induced by high-pressure in strongly underdoped YBa2Cu3O7–δ single crystals

2012 ◽  
Vol 407 (22) ◽  
pp. 4470-4472 ◽  
Author(s):  
R.V. Vovk ◽  
G.Ya. Khadzhai ◽  
Z.F. Nazyrov ◽  
I.L. Goulatis ◽  
A. Chroneos
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Single Crystals

Effect of high pressure on various diffusion mechanisms in oxygen-deficient ReBa2Cu3O7−x (Re = Y, Ho) single crystals

2019 ◽  
Vol 33 (04) ◽  
pp. 1950039
Author(s):  
G. Ya. Khadzhai ◽  
N. R. Vovk ◽  
R. V. Vovk ◽  
I. L. Goulatis ◽  
O. V. Dobrovolskiy
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Hydrostatic Pressure ◽  
Single Crystals ◽  
High Hydrostatic Pressure ◽  
Room Temperature ◽  
Diffusion Mechanisms ◽  
Diffusion Coalescence

The effect of high hydrostatic pressure on the relaxation of the electrical resistivity at room temperature of oxygen-nonstoichiometric [Formula: see text] (Re = Y, Ho) single crystals is investigated. The application of hydrostatic pressure has been revealed to significantly intensify the process of diffusion coalescence in the oxygen subsystem. At the same time, the intensity of the redistribution of labile oxygen is significantly changed when yttrium is replaced by holmium.

CRYSTAL GROWTH OF MULTI-LAYERED Ba2Ca4Cu5O10(O,F)2 (F-0245) SUPERCONDUCTOR UNDER HIGH PRESSURE

2005 ◽  
Vol 19 (01n03) ◽  
pp. 263-266 ◽  
Author(s):  
K. TOKIWA ◽  
H. OKUMOTO ◽  
S. KONO ◽  
S. IGA ◽  
K. TAKEMURA ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Crystal Growth ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Cuprate Superconductors ◽  
Resistivity Measurements ◽  
Starting Mixture

Single crystals of multi-layered Ba 2 Ca 4 Cu 5 O 10( O , F )2 superconductor(F-0245) have been grown under a high pressure of 4.5 GPa . Single crystals with in-plane length of 500μm were typically obtained and flat shiny areas with more than 1 mm 2 were also observed on the surface of fractured samples. Tc values for these samples were determined by electrical resistivity measurements. These values were found to change from 70 K to 85 K by change of oxygen and fluorine contents in the starting mixture. The temperature dependence of resistivity showed characteristic of under-doped cuprate superconductors.

Influence of high pressure on the temperature dependence of electrical resistivity of Y1-xPrxBa2Cu3O7-δ single crystals

2021 ◽  
Vol 327 ◽  
pp. 114205
Author(s):  
G. Ya Khadzhaj ◽  
A.V. Matsepulin ◽  
A. Chroneos ◽  
Ι.L. Goulatis ◽  
R.V. Vovk
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Single Crystals

scholarly journals Single Crystal Growth and Physical Properties of Pyroxene CoGeO3

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 378
Author(s):  
Li Zhao ◽  
Zhiwei Hu ◽  
Hanjie Guo ◽  
Christoph Geibel ◽  
Hong-Ji Lin ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Crystal Growth ◽  
Physical Properties ◽  
Single Crystal ◽  
Single Crystals ◽  
Magnetic Moments ◽  
Single Crystal Growth ◽  
The Impact

We report on the synthesis and physical properties of cm-sized CoGeO3 single crystals grown in a high pressure mirror furnace at pressures of 80 bar. Direction dependent magnetic susceptibility measurements on our single crystals reveal highly anisotropic magnetic properties that we attribute to the impact of strong single ion anisotropy appearing in this system with TN∼33.5 K. Furthermore, we observe effective magnetic moments that are exceeding the spin only values of the Co ions, which reveals the presence of sizable orbital moments in CoGeO3.

High Pressure effects on electrical resistivity and dielectric properties of nanocrystalline SnO2

2005 ◽  
Vol 66 (10) ◽  
pp. 1621-1627 ◽  
Author(s):  
P. Thangadurai ◽  
A. Chandra Bose ◽  
S. Ramasamy ◽  
R. Kesavamoorthy ◽  
T.R. Ravindran
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Dielectric Properties ◽  
Pressure Effects ◽  
High Pressure Effects

Femtosecond pump-probe characterization of high-pressure grown Al x Ga 1-x N single crystals

2009 ◽  
Author(s):  
Jie Zhang ◽  
A. Belousov ◽  
S. Katrych ◽  
J. Jun ◽  
J. Karpinski ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystals ◽  
Pump Probe

Crystal Field Analysis of the Magnetization Curves of HoFe11Ti under High Pressure

2013 ◽  
Vol 818 ◽  
pp. 72-76 ◽  
Author(s):  
Gang Su
Keyword(s):  
High Pressure ◽  
Hydrogen Atom ◽  
Electric Field ◽  
Single Crystals ◽  
High Pressures ◽  
Field Analysis ◽  
Magnetization Curves ◽  
Crystalline Electric Field ◽  
Crystalline Anisotropy ◽  
Magneto Crystalline Anisotropy

The crystalline electric field parameters Anmfor HoFe11Ti under different pressures were evaluated by fitting calculations to the magnetization curves measured on the single crystals at several temperatures. It was found that magneto-crystalline anisotropy has been changed by high pressure and the Anmfor HoFe11Ti under high pressures are strikingly different from Anmfor the corresponding HoFe11Ti H with interstitial hydrogen atom.

Integrated microcircuit on a diamond anvil for high-pressure electrical resistivity measurement

2005 ◽  
Vol 86 (6) ◽  
pp. 064104 ◽  
Author(s):  
Yonghao Han ◽  
Chunxiao Gao ◽  
Yanzhang Ma ◽  
Hongwu Liu ◽  
Yuewu Pan ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Resistivity Measurement ◽  
Electrical Resistivity Measurement ◽  
Diamond Anvil
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