Coexistence of superconductivity and (anti-) ferromagnetism in RuSr2YCu2O8

Authors
Takagiwa, H Akimitsu, J Kawano-Furukawa, H Yoshizawa, H
Citation
H. Takagiwa et al., Coexistence of superconductivity and (anti-) ferromagnetism in RuSr2YCu2O8, J PHYS JPN, 70(2), 2001, pp. 333-336
Citations number
6
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
70
Issue
2
Year of publication
2001
Pages
333 - 336
Database
ISI
SICI code
0031-9015(200102)70:2<333:COSA(F>2.0.ZU;2-B
Abstract
The coexistence of antiferromagnetism and superconductivity in the hybrid r uthenate-cuprate RuSr2YCu2O8 synthesized under high pressure has been confi rmed by means of powder neutron diffraction and resistivity measurements. T he Ru moments are antiferromagnetically ordered at about 149 K and Ru spins can be aligned by applying a magnetic field, suggesting that the system gr adually changes from antiferromagnetism to ferromagnetism. However, the sup erconductivity in the compound persists even at H = 9 T. This indicates the coexistence of ferromagnetism and superconductivity under a high magnetic field.