scholarly journals Magnetic Phase Diagram for Bilayer Manganites

1999 ◽  
Vol 52 (2) ◽  
pp. 255 ◽  
Author(s):  
Yutaka Moritomo
Keyword(s):  
Phase Diagram ◽  
Rare Earth ◽  
Single Crystals ◽  
Ionic Radius ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Metallic State ◽  
Antiferromagnetic State ◽  
Rare Earth Ion ◽  
Magnetic Structures

Anisotropic magnetic and transport properties as well as magnetic structures have been investigated for single crystals of bilayer manganites (La1-zNdz)2-2xSr1+2xMn2O7 as a function of doping level x and averaged ionic radius z of the rare-earth ion. We have derived a global magnetic phase diagram as a function of x and z. The ferromagnetic metallic state observed in La1·2Sr1·8Mn2O7 (x = 0· 4 and z = 0· 0) is replaced by a layered antiferromagnetic state beyond x ≥ 0·45. The phase diagram thus obtained is compared with that for the cubic manganites (La1-zNdz)1-xSrxMnO3.

Magnetic Phase Diagram in Layered Perovskite Manganite La2-2xSr1+2xMn2O7 (0.313≤x≤0.350)

2006 ◽  
Vol 512 ◽  
pp. 183-188 ◽  
Author(s):  
Takeshi Murata ◽  
Tomoyuki Terai ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita
Keyword(s):  
Phase Diagram ◽  
Magnetic Structure ◽  
Easy Axis ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
The Other ◽  
Layered Perovskite ◽  
Perovskite Manganites ◽  
Perovskite Manganite ◽  
Magnetic Structures

We have measured the magnetization as a function of temperature and magnetic field in layered perovskite manganites of La2-2xSr1+2xMn2O7 single crystals (x=0.313, 0.315, 0.320, 0.350) in order to know their magnetic structures. All the present manganites exhibit magnetic transitions from ferromagnetic to paramagnetic at 76K, 107K, 120K and 125K for x=0.313, 0.315, 0.320 and 0.350, respectively. For x=0.350 and 0.320, the magnetic structure is a planar ferromagnetism whose easy axis is in the ab-plane at all temperatures below the Curie temperature. On the other hand, for x=0.315 and 0.313, the magnetic structure is an uniaxial ferromagnetism whose easy axis is along the c-axis below 85K and 66K, respectively, and a planar ferromagnetism above the temperature. From the results described above, we made the detailed magnetic phase diagram of layered perovskite manganite La2-2xSr1+2xMn2O7 (0.313≤x≤0.350).

scholarly journals Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
M. Abdel-Hafiez ◽  
X.-M. Zhao ◽  
A. A. Kordyuk ◽  
Y.-W. Fang ◽  
B. Pan ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Single Crystals ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Enhancement Of Superconductivity

Magnetic structures and magnetic phase diagram ofNdxTb1−xMn2Ge2

1997 ◽  
Vol 55 (18) ◽  
pp. 12363-12374 ◽  
Author(s):  
L. Morellon ◽  
P. A. Algarabel ◽  
M. R. Ibarra ◽  
C. Ritter
Keyword(s):  
Phase Diagram ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Magnetic Structures

Magnetic phase diagram and vortex pinning in YBa2Cu3O y single crystals

1996 ◽  
Vol 46 (S3) ◽  
pp. 1595-1596
Author(s):  
Terukazu Nishizaki ◽  
Yasuaki Onodera ◽  
Tomoyuki Naito ◽  
Hidehito Asaoka ◽  
Humihiko Takei ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Single Crystals ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Vortex Pinning
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