Magnetic ordering in the high-temperature superconductor GdBa2Cu3O7
D. McK. Paul, H. A. Mook, A. W. Hewat, B. C. Sales, L. A. Boatner, J. R. Thompson, Mark Mostoller
DOI 10.1103/PhysRevB.37.2341 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Neutron diffraction has been employed to study the magnetic ordering in the high-temperature superconducting compound GdBa2Cu3O7. The compound is found to undergo an antiferromagnetic transition with the Gd magnetic moments ordering at 2.22±0.07 K. The ordering is shown to be three dimensional with a doubling of the orthorhombic unit in all three directions. An analysis of the intensities of the observed magnetic Bragg reflections shows that the ordered magnetic moment per Gd atom is 7.4±0.6μB and lies along the c axis of the orthorhombic cell. It is unlikely that dipolar ordering can explain the occurrence of this magnetic phase transition where the system locks into a three-dimensional ordered arrangement at the Néel temperature, since the separation of the Gd atoms along the c axis is approximately three times that along the a,b axes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| GdBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85.9 | Pressure not reported | midpoint |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 95 | Pressure not reported | unknown |
| ErBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| DyBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Evidence for the dependence of the magnetic ordering on the oxygen occupancy in the high-Tc superconductor GdBa2Cu3O7−δ
similarity 0.96T. Chattopadhyay et al.
Source status unknown — claims are unverified
Superlattices of high-Tc superconductors
similarity 0.96Shi-Min Cui & Chien-Hua Tsai
Source status unknown — claims are unverified
Diamagnetic response of oxide superconductors: Theoretical descriptions by the mass-reduction mechanism
similarity 0.96Satoshi Ishizaka & Takeo Izuyama
Source status unknown — claims are unverified
Epitaxy and disorientations in the ferroelastic superconductor YBa2Cu3O7−x
similarity 0.96V. K. Wadhawan
Source status unknown — claims are unverified
Phase diagrams of oxygen ordering in high-temperature superconductors RBa2Cu3O7−x
similarity 0.96V. E. Zubkus et al.
Source status unknown — claims are unverified
Dynamic correlated Cu(2) magnetic moments in superconducting YBa2(Cu0.96Ni0.04)3Oy (y∼7)
similarity 0.95J. A. Hodges et al.
Source status unknown — claims are unverified