scholarly journals Magnetic minor hysteresis loops of compressively deformed transition-metal single crystals

2006 ◽  
Vol 99 (8) ◽  
pp. 08H908 ◽  
Author(s):  
Satoru Kobayashi ◽  
Seiki Takahashi ◽  
Yasuhiro Kamada ◽  
Hiroaki Kikuchi ◽  
Katsuyuki Ara
Keyword(s):  
Transition Metal ◽  
Single Crystals ◽  
Hysteresis Loops ◽  
Metal Single Crystals ◽  
Minor Hysteresis Loops

Field-Driven Phase Transformations in Relaxor Ferroelectric Single Crystals

2013 ◽  
Author(s):  
John A. Gallagher ◽  
Christopher S. Lynch
Keyword(s):  
Phase Transformation ◽  
Phase Transformations ◽  
Single Crystals ◽  
Driving Force ◽  
Gaussian Model ◽  
Hysteresis Loops ◽  
Relaxor Ferroelectric ◽  
Material Behavior ◽  
Minor Hysteresis Loops ◽  
Good Agreement

Relaxor ferroelectric single crystals such as PMN-PT and PIN-PMN-PT undergo field driven phase transformations when electrically or mechanically loaded in crystallographic directions that provide a positive driving force for the transformation. The observed behavior in certain compositions is a phase transformation distributed over a range of field levels without a distinct forward or reverse coercive field. This work focuses on the material behavior that is observed when the crystals are loaded sufficiently to drive a partial transformation and then unloaded as might occur when driving a transducer to achieve high power levels. A set of experiments was conducted to characterize the minor hysteresis loops that occur with the partial transformations. Distributed transformations have been modeled using a Gaussian distribution of transformation thresholds. In this work the Gaussian model is extended to include the partial transformations that occur when the field is reversed before the transformation is complete. The resulting minor hysteresis loops produced by the model are in good agreement with the experimental results.

Ion-induced emission of excited atoms from (100) surfaces of transition metal single crystals

Vacuum ◽  
1995 ◽  
Vol 46 (5-6) ◽  
pp. 605-608
Author(s):  
Z Postawa ◽  
Chun He ◽  
M El-Maazawi ◽  
R Chatterjee ◽  
BJ Garrison ◽  
...  
Keyword(s):  
Transition Metal ◽  
Single Crystals ◽  
Excited Atoms ◽  
Metal Single Crystals

Investigation of the effect of stress direction and temperature on minor hysteresis loops in nickel single crystals

2007 ◽  
Vol 310 (2) ◽  
pp. 2638-2640 ◽  
Author(s):  
S. Kobayashi ◽  
T. Fujiwara ◽  
M. Tsunoda ◽  
S. Takahashi ◽  
H. Kikuchi ◽  
...  
Keyword(s):  
Single Crystals ◽  
Hysteresis Loops ◽  
Stress Direction ◽  
Minor Hysteresis Loops

LOW-TEMPERATURE TRANSITION METAL-SEMICONDUCTOR IN CdCr2Se4 SINGLE CRYSTALS DOPED WITH INDIUM AND GALLIUM

1980 ◽  
Vol 41 (C5) ◽  
pp. C5-155-C5-156 ◽  
Author(s):  
T. G. Aminov ◽  
K. P. Below ◽  
V. T. Kalinnikov ◽  
L. I. Koroleva ◽  
L. N. Tovmasjan
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Single Crystals ◽  
Temperature Transition

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.

scholarly journals Investigations on Crystalline Perfection, Raman Spectra and Optical Characteristics of Transition Metal (Ru) Co-Doped Mg:LiNbO3 Single Crystals

ACS Omega ◽  
2021 ◽  
Author(s):  
M. K. Raseel Rahman ◽  
B. Riscob ◽  
Rajeev Bhatt ◽  
Indranil Bhaumik ◽  
Sarveswaran Ganesamoorthy ◽  
...  
Keyword(s):  
Transition Metal ◽  
Single Crystals ◽  
Raman Spectra ◽  
Optical Characteristics ◽  
Crystalline Perfection ◽  
Co Doped
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