Unusual electromechanical response in rubrene single crystals

2018 ◽  
Vol 5 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Micaela Matta ◽  
Marco José Pereira ◽  
Sai Manoj Gali ◽  
Damien Thuau ◽  
Yoann Olivier ◽  
...  
Keyword(s):  
Mechanical Stress ◽  
Single Crystals ◽  
Strong Coupling ◽  
Multiscale Modeling ◽  
Experimental Measurements

Multiscale modeling and experimental measurements highlight the strong coupling between mechanical stress and mobility along the two in-plane orthogonal crystalline directions in rubrene FETs.

scholarly journals The Stability of Icosahedral Cd-Yb

2003 ◽  
Vol 805 ◽  
Author(s):  
Günter Krauss ◽  
Sofia Deloudi ◽  
Andrea Steiner ◽  
Walter Steurer ◽  
Amy R. Ross ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ambient Temperature ◽  
Mechanical Stress ◽  
Single Crystals ◽  
High Temperatures ◽  
Low Temperatures ◽  
Ambient Pressure ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Stability

ABSTRACTThe stability of single-crystalline icosahedral Cd-Yb was investigated using X-ray diffraction methods in the temperature range 20 K ≤ T ≤ 900 K at ambient pressure and from ambient temperature to 873 K at about 9 GPa. Single-crystals remain stable at low temperatures and in the investigated HP-HT-regime. At high temperatures and ambient pressure, the quasicrystal decomposes. The application of mechanical stress at low temperatures yields to the same decomposition, the formation of Cd. A reaction of icosahedral Cd-Yb with traces of oxygen or water causing the decomposition seems reasonable, but a low-temperature instability of this binary quasi-crystal cannot be ruled out totally.

WEAK FIELD MAGNETIZATION AND SUSCEPTIBILITY FLUCTUATION IN Bi2Sr2CaCu2Oy SINGLE CRYSTALS

1989 ◽  
Vol 03 (14) ◽  
pp. 1045-1051 ◽  
Author(s):  
G. H. CHEN ◽  
G. YANG ◽  
Y. F. YAN ◽  
S. L. JIA ◽  
Y. M. NI ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystals ◽  
Temperature Increase ◽  
Weak Field ◽  
Experimental Measurements ◽  
Zero Field ◽  
Two Dimensional ◽  
Magnetization Curves ◽  
Field Limit ◽  
Low Magnetic Field

Some magnetization curves of single crystal of Bi 2 Sr 2 CaCu 2 O y in low magnetic field H ‖ c axis are given. The magnetization loop is getting smaller with the temperature increase and then disappears at temperature even higher than T c . The experimental measurements of the susceptibility in zero-field limit show that the results can be treated with two-dimensional thermo-fluctuation theory.

A theoretical determination of the elastic constants of ice

1948 ◽  
Vol 44 (3) ◽  
pp. 423-439 ◽  
Author(s):  
Angela H. A. Penny
Keyword(s):  
Single Crystals ◽  
Elastic Constants ◽  
Symmetry Transformation ◽  
Simplified Model ◽  
Experimental Measurements ◽  
Dynamical Matrix ◽  
Ice Crystal ◽  
Theoretical Determination ◽  
Symmetry Operations

A simplified model of the ice crystal, equivalent to Barnes's, was used. By applying the symmetry operations of this model to the dynamical matrix, it was made to depend on six arbitrary constants. By assuming that the tetrahedra of oxygen atoms which form the lattice are regular, and hence applying a further symmetry transformation to a smaller unit of the crystal, the number of arbitrary constants was reduced to two. The elastic constants were then found in terms of these two atomic constants. Two of the experimental measurements of the elastic constants of polycrystalline (quasiamorphous) ice were used to calculate the atomic constants and hence the elastic constants for single crystals.

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