Melting of Quasi-Two-Dimensional Charge Stripes in La{sub 5/3}Sr{sub 1/3}NiO{sub 4}
Journal Article
·
· Physical Review Letters
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
- Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey (United States) 07974; How Narrow is the Linewidth of Parametric X-Ray Radiation?
Commensurability effects for nickelates have been studied, for the first time, by neutron scattering on La{sub 5/3}Sr {sub 1/3}NiO {sub 4} . Upon cooling, this system undergoes three successive phase transitions associated with quasi-two-dimensional (2D) commensurate charge and spin stripe ordering in the NiO{sub 2} planes. The two lower temperature phases are stripe lattice states with quasi-long-range in-plane charge correlation. When the lattice of 2D charge stripes melts, it goes through an intermediate glass state before becoming a disordered liquid state. This glass state shows short-range charge order without spin order, and may be called a {open_quotes}stripe glass{close_quotes} which resembles the hexatic/nematic state in 2D melting. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 587136
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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