Single-crystal neutron-diffraction investigation of the magnetic ordering of the high-temperature superconductor ErBa2Cu3O7−δ
T. Chattopadhyay, P. J. Brown, B. C. Sales, L. A. Boatner, H. A. Mook, H. Maletta
DOI 10.1103/PhysRevB.40.2624 · Physical Review B
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Abstract
Neutron-diffraction experiments on single crystals of ErBa2Cu3O7−δ (Tc≃88 K) show that Er moments order at about 500 mK with an antiferromagnetic structure with the wave vector k=((1/2,0,0). The magnetic moment of Er atoms is determined to be 4.8(2)μB and is oriented perpendicular to the wave vector, i.e., along the b axis. This result differs from that of our previous powder investigations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| ErBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | midpoint |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| ErBa2Cu3O6.53 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 54 | Pressure not reported | unknown |
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