Journal Article

FZJ-2016-00385

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Inverse order-disorder transition of charge stripes

Lee, S.-H. ; Lai, Y.-C. ; Du, C.-H. (Corresponding author) ; Siegenfeld, A. F. ; Kao, Y.-J. ; Hatton, P. D. ; Prabhakaran, D. ; Su, Y.FZJ* ; Huang, D.-J.

2015
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/9726  doi:10.1103/PhysRevB.92.205114

Abstract: We report an unusual transition behavior of charge stripes in La1.67Sr0.33NiO4 using x-ray scattering. The segregated holes in La1.67Sr0.33NiO4 are observed to form anisotropic stripes in the a×b plane of the crystal space below the transition temperature T≃238 K, and at the same time, display an unusual inverse order-disorder transition along the c axis. Using a phenomenological Landau theory, we show that this inverse transition is due to the interlayer coupling between the charge and spin orders. This discovery points to the importance of the interlayer correlations in the strongly correlated electrons system.

Keyword(s): Basic research (1st) ; Key Technologies (1st) ; Condensed Matter Physics (2nd) ; Magnetism (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)
3. Streumethoden (PGI-4)
4. JARA-FIT (JARA-FIT)

Research Program(s):

1. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2015

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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