Crystal Growth and Superconducting Properties of Bi2Sr2Ca2Cu3Oy (Bi2223) Single Crystals

2001 ◽  
Vol 689 ◽  
Author(s):  
K. Shimizu ◽  
T. Okabe ◽  
S. Horii ◽  
K. Otzschi ◽  
J. Shimoyama ◽  
...  
Keyword(s):  
Single Crystals ◽  
Flux Line ◽  
Hysteresis Loops ◽  
Magnetic Phase Diagram ◽  
Zone Method ◽  
Line Lattice ◽  
Slow Growth Rate ◽  
First Order Phase Transition ◽  
Wide Range ◽  
Carrier Doping

ABSTRACTBi2223 single crystals were grown by the floating zone method with an extremely slow growth rate of 0.05 mm / h. The largest size of the plate-like single crystal was approximately 3 × 2 × 0.1 mm3. The X-ray diffraction analysis and DC susceptibility measurements revealed that the grown crystals were almost single phase of Bi2223 with a very small percentage of Bi2212 intergrowth. Then carrier doping was systematically controlled in a wide range from underdoping to overdoping by post annealing under various conditions. Tc of the crystals was found to vary from 98 K (underdoped) to 108 K (overdoped) with Tc = 110 K for optimally-doped. In the optimally-doped phase the electromagnetic anisotropy factor, γ2 of Bi2223 was smaller than that of Bi2212. Abrupt resistivity drop was observed under fields below the second peak field of the magnetization hysteresis loops, suggesting a first order phase transition of the flux line lattice. Magnetic phase diagram of Bi2223 single crystals for H // c was found to be similar to that of Bi2212.

Observation of the flux line lattice in (La1−xSrx)2CuO4 single crystals

1998 ◽  
Vol 107 (6) ◽  
pp. 291-293 ◽  
Author(s):  
A. Vostner ◽  
G. Brandstätter ◽  
Tapan Chatterji ◽  
H.W. Weber ◽  
T. Sasagawa ◽  
...  
Keyword(s):  
Single Crystals ◽  
Flux Line ◽  
Line Lattice ◽  
Flux Line Lattice

Observation of the flux line lattice in high Tc-superconductor Bi2.2Sr2CaCu2OX and Ti2Ba2CaCu2OX single crystals

1989 ◽  
Vol 70 (12) ◽  
pp. 1145-1146 ◽  
Author(s):  
L.Ya. Vinnikov ◽  
L.A. Gurevich ◽  
G.A. Emelchenko ◽  
G.A. Kazaryan ◽  
N.N. Kolesnikov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Flux Line ◽  
Line Lattice ◽  
High Tc ◽  
Flux Line Lattice ◽  
High Tc Superconductor

Observation of the flux line lattice and crystal defects in Bi–Sr–Ca–Cu–O single crystals

2003 ◽  
Vol 392-396 ◽  
pp. 353-358 ◽  
Author(s):  
K. Furusawa ◽  
Y. Zhao ◽  
N. Chikumoto ◽  
K. Kishio ◽  
T. Nagatomo ◽  
...  
Keyword(s):  
Single Crystals ◽  
Flux Line ◽  
Crystal Defects ◽  
Line Lattice ◽  
Flux Line Lattice

scholarly journals Low-energy optical switching of SO2 linkage isomerisation in single crystals of a ruthenium-based coordination complex

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13183-13192
Author(s):  
Jacqueline M. Cole ◽  
David J. Gosztola ◽  
Sven O. Sylvester
Keyword(s):  
Single Crystals ◽  
Optical Sensors ◽  
Optical Switching ◽  
Optical Switches ◽  
Low Energy ◽  
Coordination Complex ◽  
Wide Range

Single crystals that behave as optical switches are desirable for a wide range of applications, from optical sensors to read–write memory media.

scholarly journals Tunable magnetization steps in mixed valent ferromagnet Eu2CoMnO6

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nara Lee ◽  
Jong Hyuk Kim ◽  
Dong Gun Oh ◽  
Hyun Jun Shin ◽  
Hwan Young Choi ◽  
...  
Keyword(s):  
Material Processing ◽  
Magnetic Properties ◽  
Single Crystals ◽  
Magnetic State ◽  
Hysteresis Loops ◽  
Double Perovskite ◽  
Processing Parameters ◽  
Perovskite Oxides ◽  
Efficient Approach ◽  
Isothermal Magnetization

AbstractMagnetic properties can be manipulated to enhance certain functionalities by tuning different material processing parameters. Here, we present the controllable magnetization steps of hysteresis loops in double-perovskite single crystals of Eu2CoMnO6. Ferromagnetic order emerges below TC ≈ 122 K along the crystallographic c axis. The difficulty in altering Co2+ and Mn4+ ions naturally induces additional antiferromagnetic clusters in this system. Annealing the crystals in different gas environments modifies the mixed magnetic state, and results in the retardation (after O2-annealing) and bifurcation (after Ar-annealing) of the magnetization steps of isothermal magnetization. This remarkable variation offers an efficient approach for improving the magnetic properties of double-perovskite oxides.

Suppression of Ferromagnetism in EuxCa1-xB6

2012 ◽  
Vol 190 ◽  
pp. 97-100 ◽  
Author(s):  
V.V. Glushkov ◽  
A.V. Kuznetsov ◽  
I. Sannikov ◽  
A.V. Bogach ◽  
S.V. Demishev ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Curie Temperature ◽  
Single Crystals ◽  
Effective Magnetic Moment ◽  
Paramagnetic State ◽  
Low Field ◽  
Wide Range ◽  
Free Ion ◽  
The Eu

We report the magnetic properties of EuxCa1-xB6 single crystals (0.756x1) studied in the wide range of temperatures (1.8-300 K) and magnetic fields (up to 50 kOe). It was found that low field magnetic susceptibility χ (T) follows the Curie-Weiss law χ~(T-Θp)-1 at high temperatures for all the concentrations studied. The effective magnetic moment of the Eu2+ ion estimated from the data diminishes from the free ion value μeff7.93μB (μB - Bohr magneton) for x=1 to μeff7.3μB for x=0.756. A universal behavior of magnetic susceptibility χ~(T-Θ)-α (α=1.5) is detected close to the Curie temperature TC in the paramagnetic state at both metallic (x>xC~0.8) and dielectric (xC.

Observation of the flux line lattice in an amorphous superconductor

2000 ◽  
Vol 276-278 ◽  
pp. 818-819
Author(s):  
P. Manuel ◽  
A.D. Hillier ◽  
S.H. Kilcoyne
Keyword(s):  
Flux Line ◽  
Line Lattice ◽  
Flux Line Lattice
Sign in / Sign up

Export Citation Format

Share Document