Magneto-Transport Properties in Layered Manganite Crystals

1997 ◽  
Vol 494 ◽  
Author(s):  
T. Kimura ◽  
Y. Tomioka ◽  
T. Okudat ◽  
H. Kuwahara ◽  
A. Asamitsu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Fields ◽  
Charge Transport ◽  
Transport Properties ◽  
Single Crystals ◽  
Magnetic Structure ◽  
Temperature Region ◽  
Doping Level ◽  
Magnetic Coupling ◽  
Tunneling Magnetoresistance

ABSTRACTAnisotropie charge transport and magnetic properties have been investigated for single crystals of the layered manganite, La2–2xMn2O7 (0.3≤x≤0.5). Remarkable variations in the magnetic structure as well as in the charge-transport properties are observed with changing doping-level x. A crystal with x=0.3 behaves like a 2-dimensional ferromagnetic metal in the temperature region between ∼90 K and ∼270 K, and shows the interplane tunneling magnetoresistance at lower temperatures. These characteristic charge-transport properties are attributed to the interplane magnetic coupling between the adjacent MnO2 bilayers, and are strongly affected by the application of pressure as well as low magnetic fields through the change in magnetic structure. With increase of the carrier concentration toward x=0.5, the charge-ordered phase is stabilized and dominates the charge transport and magnetic properties.

scholarly journals Investigation of charge transport properties of [1]Benzothieno[3,2-b][1]-benzothiophene single-crystals in field-effect transistor configuration

2020 ◽  
Vol 78 ◽  
pp. 105605 ◽  
Author(s):  
Xiao Liu ◽  
Xiaolu Su ◽  
Clément Livache ◽  
Lise-Marie Chamoreau ◽  
Sébastien Sanaur ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Single Crystals ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Effect Transistor

scholarly journals Superconductivity in Cu Co-Doped SrxBi2Se3 Single Crystals

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3899 ◽  
Author(s):  
Aleksandr Yu. Kuntsevich ◽  
Victor P. Martovitskii ◽  
George V. Rybalchenko ◽  
Yuri G. Selivanov ◽  
Mikhail I. Bannikov ◽  
...  
Keyword(s):  
Critical Temperature ◽  
Transport Properties ◽  
Single Crystals ◽  
Electron Density ◽  
Doping Level ◽  
Carrier Density ◽  
Host Matrix ◽  
Topological Superconductor ◽  
Co Doping ◽  
Co Doped

In this study, we grew Cu co-doped single crystals of a topological superconductor candidate Sr x Bi 2 Se 3 , and studied their structural and transport properties. We reveal that the addition of even as small an amount of Cu co-dopant as 0.6 atomic %, completely suppresses superconductivity in Sr x Bi 2 Se 3 . Critical temperature (∼2.7 K) is rather robust with respect to co-doping. We show that Cu systematically increases the electron density and lattice parameters a and c. Our results demonstrate that superconductivity in Sr x Bi 2 Se 3 -based materials is induced by significantly lower Sr doping level x < 0.02 than commonly accepted x ∼ 0.06 , and it strongly depends on the specific arrangement of Sr atoms in the host matrix. The critical temperature in superconductive Sr-doped Bi 2 Se 3 is shown to be insensitive to carrier density.

scholarly journals MAGNETIC PROPERTIES OF SINGLE CRYSTALS (MnIn2S4)1–х–(AgIn5S8)х SOLID SOLUTIONS

Doklady BGUIR ◽  
2019 ◽  
pp. 95-99
Author(s):  
I. V. Bodnar ◽  
Bin Tkhan Chan
Keyword(s):  
Magnetic Properties ◽  
Magnetic Fields ◽  
Single Crystals ◽  
Solid Solutions ◽  
Magnetic Moment ◽  
Temperature Range ◽  
Bridgeman Method ◽  
The Given ◽  
Specific Magnetic Moment

Single crystals of solid solutions (MnIn2S4)1-х–(AgIn5S8)х have been grown with the Bridgeman method in the whole range of temperatures. The crystals structure and composition were determined. The study of the given single crystals in the temperature range 2–300 К and magnetic fields to 10 T was carried out. It is set that the given crystals are paramagnetic in the whole studied range. The specific magnetic moment increases with the temperature.  

MAGNETORESISTANCE IN TOPOLOGICAL INSULATOR MnxBi2-xSe3 CRYSTALS

2013 ◽  
Vol 27 (15) ◽  
pp. 1362036 ◽  
Author(s):  
LI LV ◽  
MIN ZHANG ◽  
ZHANTAO WEI ◽  
LINQIN YANG ◽  
XISHENG YANG ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Temperature Dependence ◽  
Transport Properties ◽  
Single Crystals ◽  
Topological Insulator ◽  
Magnetic Impurities ◽  
High Concentration ◽  
Similar Temperature Dependence ◽  
Similar Temperature ◽  
Mr Effect

The transport properties of magnetic-atoms doped Mn x Bi 2-x Se 3 single crystals are studied. The samples exhibit approximately similar temperature dependence of resistivity behavior under various applied magnetic fields from zero to 9 T. Magnetoresistance (MR) is modified significantly by high concentration of Mn dopants. The scatterings mechanism between the magnetic impurities and electrons plays an important role in both transport properties and MR effect.

Highly-emissive solution-grown furan/phenylene co-oligomer single crystals

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92325-92329 ◽  
Author(s):  
Maxim S. Kazantsev ◽  
Ekaterina S. Frantseva ◽  
Liudmila G. Kudriashova ◽  
Vladislav G. Konstantinov ◽  
Artur A. Mannanov ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Single Crystals ◽  
Fluorescence Efficiency ◽  
Efficient Charge ◽  
High Fluorescence

Solution-grown single crystals of furan/phenylene co-oligomer combine efficient charge transport properties and high fluorescence efficiency.

scholarly journals [60]PCBM single crystals: remarkably enhanced band-like charge transport, broadband UV-visible-NIR photo-responsivity and improved long-term air-stability

2018 ◽  
Vol 6 (20) ◽  
pp. 5489-5496 ◽  
Author(s):  
Xiaoming Zhao ◽  
Tianjun Liu ◽  
Xueyan Hou ◽  
Zilu Liu ◽  
Wenda Shi ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Single Crystals ◽  
Uv Visible

[60]PCBM single crystals were prepared to understand their intrinsic photo-responsivity, stability, and charge transport properties.

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