Weak ferromagnetic response in PbZr1−xTixO3 single crystals

2019 ◽  
Vol 7 (36) ◽  
pp. 11085-11089
Author(s):  
Iwona Lazar ◽  
Monika Oboz ◽  
Jerzy Kubacki ◽  
Andrzej Majchrowski ◽  
Julita Piecha ◽  
...  
Keyword(s):  
Hysteresis Loop ◽  
Single Crystals ◽  
Room Temperature ◽  
Ferromagnetic Hysteresis ◽  
First Time ◽  
Ferromagnetic Hysteresis Loop ◽  
Weak Ferromagnetic

For the first time, a weak ferromagnetic hysteresis loop at room temperature has been observed in PbZr1−xTixO3 (PZT) single crystals.

Room temperature growth of CH3NH3PbCl3 single crystals by solvent evaporation method

CrystEngComm ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 656-661 ◽  
Author(s):  
Pronoy Nandi ◽  
Chandan Giri ◽  
Diptikanta Swain ◽  
U. Manju ◽  
Dinesh Topwal
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
Solvent Evaporation ◽  
Crystalline Quality ◽  
Solvent Evaporation Method ◽  
High Crystalline Quality ◽  
Temperature Growth ◽  
Evaporation Method ◽  
First Time

Rectangular shaped, high crystalline quality, defect free and colorless 3D perovskite single crystals of CH3NH3PbCl3 were grown using the solvent evaporation method at room temperature for the first time.

X-RAY-IRRADIATED KTiOPO4: ESR STUDIES

1992 ◽  
Vol 06 (03) ◽  
pp. 177-181 ◽  
Author(s):  
BORIS V. ANDREEV ◽  
VLADIMIR N. EFIMOV
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
X Ray ◽  
Temperature Range ◽  
First Time ◽  
Paramagnetic Centres

The study of radiation paramagnetic centres (RPC) arising in flux-grown KTiOPO 4 (KTP) single crystals at X-ray-irradiation at 300 K was conducted by the ESR-method in the temperature range of 3.7÷300 K . For the first time in X-ray-irradiated KTP there were found electron and hole RPC stable at room temperature and related to Ti 3+ and Al 3+ impurity, respectively.

scholarly journals 6,6′-[(3,3′-Di-tert-butyl-5,5′-dimethoxy-1,1′-biphenyl-2,2′-diyl)bis(oxy)]bis(dibenzo[d,f][1,3,2]dioxaphosphepine) benzene monosolvate

IUCrData ◽  
2019 ◽  
Vol 4 (12) ◽  
Author(s):  
Benedict N. Leidecker ◽  
Christoph Kubis ◽  
Anke Spannenberg ◽  
Robert Franke ◽  
Armin Börner
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Room Temperature ◽  
Benzene Solution ◽  
Specific Property ◽  
Stacking Interactions ◽  
Tert Butyl ◽  
Π Stacking ◽  
Centroid Distance ◽  
First Time

The crystal structure of the benzene monosolvate of the well known organic diphosphite ligand BIPHEPHOS, C46H44O8P2·C6H6, is reported for the first time. Single crystals of BIPHEPHOS were obtained from a benzene solution after layering with n-heptane at room temperature. One specific property of this type of diphosphite structure is the twisting of the biphenyl units. In the crystal, C—H...π contacts and π–π stacking interactions [centroid-to-centroid distance = 3.8941 (15) Å] are observed.

scholarly journals A Novel Method to Significantly Improve the Mechanical Properties of n-Type Bi(1−x)Sbx Thermoelectrics Due to Plastic Deformation

2021 ◽  
Vol 2 (4) ◽  
pp. 511-526
Author(s):  
Nikolay Sidorenko ◽  
Yaakov Unigovski ◽  
Zinovi Dashevsky ◽  
Roni Shneck
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Room Temperature ◽  
Boundary Surface ◽  
Hydrostatic Compression ◽  
Structural Defects ◽  
Temperature Range ◽  
Unique Method ◽  
Novel Method ◽  
First Time

A unique method was developed to significantly improve the strength of Bi(1−x)Sbx single crystals, the most effective thermoelectric (TE) materials in the temperature range from 100 to 200 K due to their plastic deformation by extrusion. After plastic deformation at room temperature under all-round hydrostatic compression in a liquid medium, n-type Bi–Sb polycrystalline solid solutions show a significant increase in mechanical strength compared to Bi–Sb single crystals in the temperature range from 300 to 80 K. The significantly higher strength of extruded alloys in comparison with Bi–Sb single crystals is associated with the development of numerous grains with a high boundary surface as well as structural defects, such as dislocations, that accumulate at grain boundaries. Significant stability of the structure of extruded samples is achieved due to the uniformity of crystal plastic deformation under all-round hydrostatic compression and the formation of the polycrystalline structure consisting of grains with the orientation of the main crystallographic directions close to the original single crystal. The strengthening of Bi–Sb single crystals after plastic deformation allows for the first time to create workable TE devices that cannot be created on the basis of single crystals that have excellent TE properties, but low strength.

Magnetism in a Spintronic Compound Zr0.8Cr0.2O2 of Small Crystallites

2014 ◽  
Vol 28 ◽  
pp. 101-108
Author(s):  
Arundhati Sengupta ◽  
Susmita Misra ◽  
Shanker Ram
Keyword(s):  
Surface Layer ◽  
Metal Ion ◽  
Room Temperature ◽  
Raman Band ◽  
Weak Ferromagnetism ◽  
Electrical And Optical Properties ◽  
Liquid Polymer ◽  
Transverse Optic ◽  
Ferromagnetic Hysteresis ◽  
Ferromagnetic Hysteresis Loop

A transition metal ion Cr4+(3d2 spins) doped ZrO2 of small crystallites presents tailored magnetic, electrical and optical properties useful for magnetodielectric and spintronic applications. A liquid polymer precursor gel (Cr4+ and Zr4+ complex with glycerol) when heated in an autoclave at a small pressure 0.6-0.7 atm at 420–470 K results in a compound Zr0.8Cr0.2O2 with an average 5 nm crystallite size of a stabilized cubic (c)-ZrO2-type phase (after 2 h annealing at 773 K in air). A broad Raman band is observed at ~300 cm-1 in acoustic and transverse optic phonons characteristic of the c-ZrO2-type structure, with a prominent O–Cr–O stretching band at 878 cm-1 in a ferromagnetic order. A CrO2/Cr2O3 surface layer exhibits two weak bands at ~1011 cm-1 and 1032 cm-1. The sample exhibits an ‘S’-shaped ferromagnetic hysteresis loop (does not saturate below 60 kOe fields) at 5 K, with a magnetization M = 85.79 emu/g (in the CrO2 part) at 60 kOe and coercivity Hc = 100 Oe. With warming above 5 K, the loop converges progressively with only a weak ferromagnetism at room temperature, M = 9.08 emu/g and Hc = 54.2 Oe. As a pinning barrier, the uncompensated spins in the surface layer supports coercivity at low temperature. A model magnetic structure describes the magnetic properties in correlation to the microstructure.

Isolation of single crystals of homoleptic UO22+- diglycolamide complex from a room temperature ionic liquid: X-ray crystallography and complexation studies

2022 ◽  
Author(s):  
Seraj A. Ansari ◽  
Amey Wadawale ◽  
Willem Verboom ◽  
Prasanta Kumar Mohapatra
Keyword(s):  
Ionic Liquid ◽  
Single Crystals ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid ◽  
Solid Complex ◽  
Structural Investigations ◽  
X Ray ◽  
X Ray Crystallography ◽  
Complexation Studies ◽  
First Time

Complexation and structural investigations of the solid complex of UO22+ ion and N,N,N’,N’-tetramethyl diglycolamide isolated from a room temperature ionic liquid, for the first time, revealed that the nature and...

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