Flux-lattice melting, anisotropy, and the role of interlayer coupling in Bi-Sr-Ca-Cu-O single crystals

1991 ◽  
Vol 44 (14) ◽  
pp. 7737-7740 ◽  
Author(s):  
C. Duran ◽  
J. Yazyi ◽  
F. de la Cruz ◽  
D. J. Bishop ◽  
D. B. Mitzi ◽  
...  
Keyword(s):  
Single Crystals ◽  
Interlayer Coupling ◽  
Flux Lattice

Flux Lattice Melting and Dimensional Crossover in Bi-2212 Single Crystals

1996 ◽  
Vol 6 (12) ◽  
pp. 2327-2354 ◽  
Author(s):  
P. H. Kes ◽  
H. Pastoriza ◽  
T. W. Li ◽  
R. Cubitt ◽  
E. M. Forgan ◽  
...  
Keyword(s):  
Single Crystals ◽  
Dimensional Crossover ◽  
Flux Lattice

scholarly journals Modeling of magneto-conductivity of bismuth selenide: a topological insulator

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Yogesh Kumar ◽  
Rabia Sultana ◽  
Prince Sharma ◽  
V. P. S. Awana
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Single Crystal ◽  
Single Crystals ◽  
X Ray Diffraction ◽  
Field Range ◽  
X Ray ◽  
Bulk Carriers ◽  
Different Temperatures

AbstractWe report the magneto-conductivity analysis of Bi2Se3 single crystal at different temperatures in a magnetic field range of ± 14 T. The single crystals are grown by the self-flux method and characterized through X-ray diffraction, Scanning Electron Microscopy, and Raman Spectroscopy. The single crystals show magnetoresistance (MR%) of around 380% at a magnetic field of 14 T and a temperature of 5 K. The Hikami–Larkin–Nagaoka (HLN) equation has been used to fit the magneto-conductivity (MC) data. However, the HLN fitted curve deviates at higher magnetic fields above 1 T, suggesting that the role of surface-driven conductivity suppresses with an increasing magnetic field. This article proposes a speculative model comprising of surface-driven HLN and added quantum diffusive and bulk carriers-driven classical terms. The model successfully explains the MC of the Bi2Se3 single crystal at various temperatures (5–200 K) and applied magnetic fields (up to 14 T).

scholarly journals Internal melt figures in ice by rapid adiabatic compression

1994 ◽  
Vol 40 (134) ◽  
pp. 132-134
Author(s):  
R.E. Gagnon ◽  
C. Tulk ◽  
H. Kiefte
Keyword(s):  
Phase Transformations ◽  
Grain Boundaries ◽  
Single Crystals ◽  
Adiabatic Compression ◽  
Air Bubbles ◽  
Water Ice ◽  
Deep Focus ◽  
And Behavior ◽  
First Time

AbstractSingle crystals and bicrystals of water ice have been adiabatically pressurized to produce, and clearly illustrate, two types of internal melt figures: (1) dendritic figures that grow from nucleation imperfections on the specimen’s surface, or from air bubbles at grain boundaries, into the ice as pressure is elevated; and (2) compression melt fractures, flat liquid-filled disks, that nucleate at imperfections in the crystal and grow with the application of pressure eventually to sprout dendritic fingers at the periphery. The transparency of the ice permitted visualization of the growth and behavior of the figures, and this could be an important tool in understanding the role of phase transformations in deep-focus earthquakes. Correlation between figure size and pressure is noted for the first time.

Spin-Lattice Coupling and Peculiarities of Magnetic Behavior of Ferrimagnetic Ludwigites Mn0.52+M1.52+Mn3+BO5(M=Cu, Ni)

2015 ◽  
Vol 233-234 ◽  
pp. 133-136 ◽  
Author(s):  
Leonard Bezmaternykh ◽  
Evgeniya Moshkina ◽  
Evgeniy Eremin ◽  
Maxim Molokeev ◽  
Nikita Volkov ◽  
...  
Keyword(s):  
Temperature Field ◽  
Low Temperature ◽  
Magnetic Anisotropy ◽  
Single Crystals ◽  
Magnetic Behavior ◽  
Temperature Hysteresis ◽  
Spin Lattice ◽  
Field Magnetization ◽  
Lattice Coupling

Temperature-field and orientational magnetization dependences of single crystals were measured. Both samples demonstrate significant field-depending temperature hysteresis and low-temperature counter field magnetization. The correlation of orientational dependences of these effects and magnetic anisotropy is analyzed; the role of spin-lattice interactions is discussed.

Role of complexing agents on the etching characteristics of Bi-Sb alloy single crystals

1980 ◽  
Vol 48 (3) ◽  
pp. 483-485
Author(s):  
V.P. Bhatt ◽  
A.R. Vyas ◽  
G.R. Pandya
Keyword(s):  
Single Crystals ◽  
Complexing Agents

Interlayer coupling in Pb-substituted Bi2Sr2CaCu2O8+δ single crystals

1996 ◽  
Vol 265 (3-4) ◽  
pp. 194-200 ◽  
Author(s):  
L. Winkeler ◽  
S. Sadewasser ◽  
B. Beschoten ◽  
H. Frank ◽  
F. Nouvertné ◽  
...  
Keyword(s):  
Single Crystals ◽  
Interlayer Coupling

scholarly journals О природе красного сдвига G-пика раман-спектра в эпитаксиальном двумерном слое

2021 ◽  
Vol 63 (4) ◽  
pp. 550
Author(s):  
С.Ю. Давыдов ◽  
О.В. Посредник
Keyword(s):  
Interlayer Coupling ◽  
External Pressure

With the use of the model excluded any deformation at the contact of monolayer and substrate role of the interlayer coupling is considered. It is shown that this coupling leads to the increase of the phonons frequencies values. Role of the external pressure and temperature is shortly discussed.

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