scholarly journals Effects of rare-earth ion size on the stability of the coherent Jahn-Teller distortions in undoped perovskite manganites

2012 ◽  
Vol 86 (18) ◽  
Author(s):  
T. F. Seman ◽  
K. H. Ahn ◽  
T. Lookman ◽  
A. Saxena ◽  
A. R. Bishop ◽  
...  
Keyword(s):  
Rare Earth ◽  
Perovskite Manganites ◽  
Rare Earth Ion ◽  
Jahn Teller ◽  
The Stability ◽  
Ion Size

Rare-earth-ion-size control on magnetic irreversibility field in CuBa2RECu2O7−δ

2001 ◽  
Vol 357-360 ◽  
pp. 230-233 ◽  
Author(s):  
Yukiko Yasukawa ◽  
Takayuki Nakane ◽  
Maarit Karppinen ◽  
Hisao Yamauchi
Keyword(s):  
Rare Earth ◽  
Size Control ◽  
Irreversibility Field ◽  
Rare Earth Ion ◽  
Magnetic Irreversibility ◽  
Ion Size

scholarly journals Effect of rare‐earth ion size on elasticity and crack initiation in rare‐earth aluminate glasses

2018 ◽  
Vol 101 (11) ◽  
pp. 5030-5036 ◽  
Author(s):  
Gustavo A. Rosales‐Sosa ◽  
Atsunobu Masuno ◽  
Yuji Higo ◽  
Yasuhiro Watanabe ◽  
Hiroyuki Inoue
Keyword(s):  
Rare Earth ◽  
Crack Initiation ◽  
Rare Earth Ion ◽  
Ion Size

Systematic enhancement of in-field critical current density with rare-earth ion size variance in superconducting rare-earth barium cuprate films

2004 ◽  
Vol 84 (26) ◽  
pp. 5329-5331 ◽  
Author(s):  
J. L. MacManus-Driscoll ◽  
S. R. Foltyn ◽  
Q. X. Jia ◽  
H. Wang ◽  
A. Serquis ◽  
...  
Keyword(s):  
Rare Earth ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Rare Earth Ion ◽  
Cuprate Films ◽  
Ion Size

Rare-earth ion size effect on resistivity, susceptibility, and superconductivity ofRBa2Cu3−xZnxO7−y(R= Yb, Er, Y, Dy, Gd, Eu, Sm, and Nd)

1996 ◽  
Vol 53 (22) ◽  
pp. 15245-15253 ◽  
Author(s):  
Yunhui Xu ◽  
S. S. Ata-Allah ◽  
M. G. Berger ◽  
O. Glück
Keyword(s):  
Rare Earth ◽  
Size Effect ◽  
Rare Earth Ion ◽  
Ion Size

scholarly journals Impact of rare earth ion size on the phase evolution of MoO3-containing aluminoborosilicate glass-ceramics

2018 ◽  
Vol 510 ◽  
pp. 539-550 ◽  
Author(s):  
Deepak S. Patil ◽  
Manisha Konale ◽  
Mathew Gabel ◽  
Owen K. Neill ◽  
Jarrod V. Crum ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramics ◽  
Phase Evolution ◽  
Aluminoborosilicate Glass ◽  
Rare Earth Ion ◽  
Ion Size

Effect of rare-earth ion size on local electron structure in RBa2Cu3O7−δ (R=Tm, Dy, Gd, Eu, Nd and Y) superconductors: A positron study

2006 ◽  
Vol 434 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Zhenping Chen ◽  
Jincang Zhang ◽  
Yuling Su ◽  
Yuncai Xue ◽  
Shixun Cao
Keyword(s):  
Rare Earth ◽  
Electron Structure ◽  
Local Electron ◽  
Rare Earth Ion ◽  
Ion Size

scholarly journals Investigation of Lattice Effects in Rare Earth Manganites by 18O-isotope Exchange

1999 ◽  
Vol 52 (2) ◽  
pp. 235 ◽  
Author(s):  
R. Mahesh ◽  
M. Itoh
Keyword(s):  
Rare Earth ◽  
Colossal Magnetoresistance ◽  
Charge Ordering ◽  
Perovskite Manganites ◽  
Lattice Effects ◽  
Jahn Teller ◽  
18O Isotope ◽  
Ionic Size ◽  
Rare Earth Manganites ◽  
A Site

The strong coupling between the electron spin and lattice arising from the Jahn-Teller effect of manganese ions plays an important role in the mechanism of colossal magnetoresistance and related properties of the rare earth manganites. The lattice effects in this class of oxides have been extensively studied through the application of hydrostatic as well as chemical pressures and magnetic fields. The recently observed giant 18O isotope effect provides direct evidence for the formation of lattice polarons in manganites. Here we report the preliminary results of our investigations on a variety of normal as well as 18O isotope-exchanged perovskite manganites exhibiting colossal magnetoresistance and charge ordering. The observed isotope shift of Tc as well as that of Tco is correlated with the key parameters controlling the lattice such as the Mn 3+ content, the average ionic radius of the A-site cation ⟨rA⟩ , and the A-site ionic size disorder σ2 .

scholarly journals RE BCO mixtures with large difference in rare-earth ion size: superconducting properties of chemical solution deposition-grown Yb 1− x Sm x Ba 2 Cu 3 O 7− δ films

2020 ◽  
Vol 7 (11) ◽  
pp. 201257
Author(s):  
Pablo Cayado ◽  
Minjuan Li ◽  
Manuela Erbe ◽  
Zhiyong Liu ◽  
Chuanbing Cai ◽  
...  
Keyword(s):  
Rare Earth ◽  
Chemical Solution Deposition ◽  
Fluorine Content ◽  
Chemical Solution ◽  
Superconducting Properties ◽  
Rare Earth Ion ◽  
Solution Deposition ◽  
Mixed Films ◽  
The One ◽  
Ion Size

The main objective of this work was to study the superconducting properties of RE BCO films with a mixture of rare-earth ( RE ) ions with large difference in ion size, in particular Sm 3+ and Yb 3+ . These Yb 1− x Sm x Ba 2 Cu 3 O 7− δ films have been successfully prepared for the first time by chemical solution deposition following the extremely low-fluorine route, which allows reducing the fluorine content by 93% with respect to standard full trifluoroacetate solutions. On the one hand, critical temperature T c remains stable at approximately 90 K with Sm content up to x = 0.5 where T c starts to increase towards the values of pure SmBCO films of approximately 95 K. On the other hand, the critical current densities J c of the pure SmBCO films are the largest at 77 K, where the influence of a higher T c is very relevant, while at lower temperatures and low fields, the mixed films reach larger values. This demonstrates that mixing rare-earth elements RE in RE Ba 2 Cu 3 O 7− δ causes a change in the pinning properties of the films and reveals the importance of selecting adequate RE BCO compounds according to the temperature and magnetic field region of a desired application.

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