Low temperature behavior of the YBa2Cu3O6+2x phase diagram
β Scribed by Ryoichi Kikuchi; Jae-Sung Choi
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 442 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0921-4534
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Neutron scattering experiments on single crystals have allowed an accurate determination of the magnetic phase diagram of YBa,Cu,O,,,. For increasing oxygen content the antiferromagnetic ordering of YBa,Cu,O, is unchanged up to x = 0.2. For x > 0.2 both TN and the ordered moment of Cu" ions in the
The quaternary phase relations near YBa2Cu306+ x were investigated using a solid-state ionic technique. Three invariant reactions were discovered. At 850Β°C, YBa2Cu306+ x with excess Cu, O reacts to form Y2BaC'uO5 and BaCu202 at lxl0 "3 arm oxygen , while pure YBa2Cu306+ x decomposes to Y2"~CuO5, BaC