Antiferromagnetism in NdBa2Cu3O6.1

✍ Scribed by A.H. Moudden; G. Shirane; J.M. Tranquada; R.J. Birgeneau; Y. Endoh; K. Yamada; Y. Hidaka; T. Murakami

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 238 KB
• Volume: 156-157
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(89)90814-4

✦ Synopsis

Neutron scattering experiments performed on single crystals of NdBa,Cu,O, 1 reveal antiferromagnetic order for T < TN = (385 f 2) K in which the structure is characterized by the magnetic wave vector (l/2,1/2,1/2).

The magnetic intensities are accounted for by Cu" spins coupled antiferromagnetically in the CuO, planes. The oxygen-deficient layers exhibit a small staggered magnetization ES which induces the spin ordering -S, -ES, -S, +S, +sS, +S, along the tetragonal axis. The average staggered magnetization evaluated at room temperature is about 0.4O~a in the CuO, planes and about 0.04& in the oxygen-deficient layers.