Modulation of the acidity of niobic acid by ion-doping: Effects of nature and amount of the dopant ions

2013 ◽  
Vol 567 ◽  
pp. 51-56 ◽  
Author(s):  
Paolo Carniti ◽  
Antonella Gervasini ◽  
Matteo Marzo ◽  
Aline Auroux
Keyword(s):  
Doping Effects ◽  
Ion Doping ◽  
Niobic Acid

Cr6+ ion doping effects in layered Ca3Co4O9 system

2014 ◽  
Vol 613 ◽  
pp. 87-92 ◽  
Author(s):  
Yankun Fu ◽  
Shuai Lin ◽  
Yanan Huang ◽  
Renbin Shi ◽  
Bangchuan Zhao
Keyword(s):  
Doping Effects ◽  
Ion Doping

ION DOPING EFFECTS ON THE DIELECTRIC AND PHONON PROPERTIES OF (Ba, Sr)TiO3 THIN FILMS

2011 ◽  
Vol 25 (25) ◽  
pp. 3289-3301 ◽  
Author(s):  
J. M. WESSELINOWA
Keyword(s):  
Thin Films ◽  
Dielectric Constant ◽  
Ising Model ◽  
Exchange Interactions ◽  
Function Technique ◽  
Transverse Ising Model ◽  
Bst Thin Films ◽  
Doping Effects ◽  
Ion Doping ◽  
Phonon Properties

The exact mechanism by which doping ions change the properties in (BST) thin films is not fully understood. We have shown based ( Ba , Sr ) TiO 3 on the transverse Ising model including anharmonic spin–phonon interactions and using a Green's function technique that the dielectric constant and the phonon properties can be changed due to different exchange interactions between the doping ions and the host ions in BST thin films. They are highly dependent upon the magnitude and the kind of the stress (tensile or compressive) due to the different radii of the doping ions. The phonon energies can be larger or smaller for different doping ions, whereas their damping is always enhanced.

Boron Ion Doping Effects on Superconductivity of YBa2Cu3-xBxO7-yCeramics

1991 ◽  
Vol 30 (Part 1, No. 2) ◽  
pp. 274-279 ◽  
Author(s):  
Hiroshi Katsura ◽  
Takasu Hashimoto ◽  
Yasutaka Suemune
Keyword(s):  
Doping Effects ◽  
Ion Doping

Nd Ion Doping Effects on the Multipolar Interactions in CeB6

2004 ◽  
Vol 73 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Yasuhiro Yoshino ◽  
Shinichiro Kobayashi ◽  
Shigenari Tsuji ◽  
Hideki Tou ◽  
Masafumi Sera ◽  
...  
Keyword(s):  
Doping Effects ◽  
Ion Doping

Ion doping effects in multiferroic MnWO4

2012 ◽  
Vol 111 (8) ◽  
pp. 083906 ◽  
Author(s):  
Safa Golrokh Bahoosh ◽  
J. M. Wesselinowa
Keyword(s):  
Doping Effects ◽  
Ion Doping

Ion doping effects on the properties of multiferroic nanoparticles

2009 ◽  
Vol 321 (16) ◽  
pp. 2477-2482 ◽  
Author(s):  
I. Apostolova ◽  
J.M. Wesselinowa
Keyword(s):  
Doping Effects ◽  
Ion Doping

scholarly journals Multiferroic, Phonon and Optical Properties of Pure and Ion-Doped YFeO3 Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2731
Author(s):  
Angel Apostolov ◽  
Iliana Apostolova ◽  
Julia Wesselinowa
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Spontaneous Magnetization ◽  
Band Gap Energy ◽  
Gap Energy ◽  
Doping Effects ◽  
Ion Doping ◽  
Increasing Temperature ◽  
First Time ◽  
Ti Doping

The magnetic, electric, phonon and optical properties of pure and ion-doped orthorhombic YFeO3 nanoparticles are studied for the first time theoretically. The spontaneous magnetization Ms in YFeO3 decreases with decreasing particle size. Ms is also shape dependent. The magnetization increases by Co and Er ion doping and decreases by Ti doping, which is caused by the different strain which appears in the nanoparticles and changes the exchange interaction constants in the doped states. The phonon energy for the Ag mode ω = 149 cm−1 and their damping decreases or increases with increasing temperature, respectively. Both show a kink near the Neel temperature, TN, which disappears by applying an external magnetic field. The influence of different ion doping on the band gap energy is also discussed. The doping effects can be used for different applications.

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