scholarly journals Effect of oxygen isotope substitution and crystal microstructure on magnetic ordering and phase separation in(La1−yPry)0.7Ca0.3MnO3

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
V. Yu. Pomjakushin ◽  
D. V. Sheptyakov ◽  
K. Conder ◽  
E. V. Pomjakushina ◽  
A. M. Balagurov
Keyword(s):  
Phase Separation ◽  
Oxygen Isotope ◽  
Magnetic Ordering ◽  
Isotope Substitution ◽  
Effect Of Oxygen

Effect of oxygen isotope substitution on charge ordering and magnetic and transport properties inPr0.5Ca0.5MnO3doped by chromium and ruthenium

2008 ◽  
Vol 78 (21) ◽  
Author(s):  
N. A. Babushkina ◽  
A. N. Taldenkov ◽  
A. V. Inyushkin ◽  
A. Maignan ◽  
D. I. Khomskii ◽  
...  
Keyword(s):  
Transport Properties ◽  
Oxygen Isotope ◽  
Charge Ordering ◽  
Isotope Substitution ◽  
Effect Of Oxygen

The effect of oxygen isotope substitution on magnetic properties of (La1-yPry)0.7Ca0.3MnO3manganites

1999 ◽  
Vol 11 (30) ◽  
pp. 5865-5873 ◽  
Author(s):  
N A Babushkina ◽  
L M Belova ◽  
A N Taldenkov ◽  
E A Chistotina ◽  
D I Khomskii ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Oxygen Isotope ◽  
Isotope Substitution ◽  
Effect Of Oxygen

Phase separation induced by oxygen isotope substitution in manganites of the Sm1−x SrxMnO3 system

2004 ◽  
Vol 46 (10) ◽  
pp. 1884-1890 ◽  
Author(s):  
N. A. Babushkina ◽  
E. A. Chistotina ◽  
O. Yu. Gorbenko ◽  
A. R. Kaul ◽  
K. I. Kugel ◽  
...  
Keyword(s):  
Phase Separation ◽  
Oxygen Isotope ◽  
Isotope Substitution

The effect of oxygen isotope substitution on the phase diagram of nearly half-doped R1−xSrxMnO3manganites (R = Sm, NdTb, NdEu)

2005 ◽  
Vol 17 (12) ◽  
pp. 1975-1984 ◽  
Author(s):  
N A Babushkina ◽  
E A Chistotina ◽  
I A Bobrikov ◽  
A M Balagurov ◽  
V Yu Pomjakushin ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Oxygen Isotope ◽  
Isotope Substitution ◽  
Effect Of Oxygen

Effect of oxygen isotope substitution on the magnetic structure of(La0.25Pr0.75)0.7Ca0.3MnO3

1999 ◽  
Vol 60 (1) ◽  
pp. 383-387 ◽  
Author(s):  
A. M. Balagurov ◽  
V. Yu. Pomjakushin ◽  
D. V. Sheptyakov ◽  
V. L. Aksenov ◽  
N. A. Babushkina ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Magnetic Structure ◽  
Isotope Substitution ◽  
Effect Of Oxygen

Site-selective oxygen-isotope substitution inYBa2Cu3O7−δ

1991 ◽  
Vol 44 (17) ◽  
pp. 9556-9561 ◽  
Author(s):  
Donald E. Morris ◽  
Andrea G. Markelz ◽  
John Y. T. Wei ◽  
Charles T. Hultgren ◽  
Janice H. Nickel ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Substitution ◽  
Site Selective

THE EFFECT OF OXYGEN ON SUPERCONDUCTIVITY AND MAGNETISM IN Eu1.5Ce0.5RuSr2Cu2O10 +δ

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3650-3654 ◽  
Author(s):  
I. FELNER ◽  
U. ASAF ◽  
Y. LEVI ◽  
O. MILLO
Keyword(s):  
Magnetic Ordering ◽  
Weak Ferromagnetism ◽  
Scanning Tunneling Spectroscopy ◽  
Hole Doping ◽  
Scanning Tunneling ◽  
Normal State Resistivity ◽  
Oxygen Treatment ◽  
Time Scanning ◽  
Effect Of Oxygen ◽  
The Eu

The Eu 1.5 Ce 0.5 RuSr 2 Cu 2 O 10+δ compound is the first known Cu-O based material in which superconductivity (SC) and weak-ferromagnetism (W-FM) coexist (T c =32 K, T M =122 K). SC is confined to the CuO 2 planes, and the magnetic ordering is due to the Ru sublattice. For as-prepared samples (APS), the normal-state resistivity is characteristic of an under-doped SC compound. The hole doping in CuO 2 planes, can be achieved with appropriate variation of the oxygen concentrations, which is obtained by annealing the APS under oxygen pressures up to 150 atm. The effect of oxygen treatment is to shift the onset of SC monotonically, up to 49 K. For 75 atm., two transition temperatures are found, indicating the existence of two SC phases. At the same time, scanning tunneling spectroscopy measurements show spatial variations of the gap with a double-peak distribution.

NUCLEAR MAGNETISM OF HELIUM-3 PRECIPITATES

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3368-3368
Author(s):  
V. A. SHVARTS ◽  
K. J. KLESS ◽  
N. MATSUNAGA ◽  
E. D. ADAMS ◽  
J. X. XIA ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Phase Separation ◽  
Liquid Droplet ◽  
Magnetic Ordering ◽  
Solid Sample ◽  
Nuclear Magnetism ◽  
Weiss Constant ◽  
Simultaneous Measurements ◽  
Helium 3 ◽  
Made In

Simultaneous measurements of magnetic susceptibility from 0.5 to 10 mK and pressure from 2.88 to 3.54 MPa have been made in 3He nanoclusters embedded in a 4He matrix, following phase separation. The susceptibility of the 3.54 MPa, all –solid sample behaves similarly to that of bulk 3He for v = 21.3 cm3/mole, with a Weiss constant θ = -250μK. For the 2.88 MPa, liquid-droplet sample, θ = 140μK, indicating a ferromagnetic tendency, similar to 2-D films at some coverages. At intermediate pressures, χ has a peak near 1.05 mK, but without a discontinuity. For all samples, χ had a solid-like contribution to the lowest temperatures. Magnetic ordering in nano-clusters appears to be different than the U2D2 phase of bulk 3He.

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