Spectroscopy of Stripe Order in La1:8Sr0:2NiO4 Using Resonant Soft X-Ray Diffraction
Physical Review Letters Volume 95 Issue 15
published_at 2005-10-07
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| File | |
| Title ( eng ) |
Spectroscopy of Stripe Order in La1:8Sr0:2NiO4 Using Resonant Soft X-Ray Diffraction
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| Creator |
Schüßler-Langeheine C.
Schlappa J.
Hu Z.
Chang C.F.
Schierle E.
Benomar M.
Ott H.
Weschke E.
Kaindl G.
Friedt O.
Sawatzky G.A.
Lin H.-J.
Chen C.T.
Braden M.
Tjeng L.H.
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| Source Title |
Physical Review Letters
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| Volume | 95 |
| Issue | 15 |
| Abstract |
Strong resonant enhancements of the charge-order and spin-order superstructure-diffraction intensities in La1:8Sr0:2NiO4 are observed when x-ray energies in the vicinity of the Ni L2;3 absorption edges are used. The pronounced photon-energy and polarization dependences of these diffraction intensities allow for a critical determination of the local symmetry of the ordered spin and charge carriers. We found that not only the antiferromagnetic order but also the charge-order superstructure resides within the NiO2 layers; the holes are mainly located on in-plane oxygens surrounding a Ni2+ site with the spins coupled antiparallel in close analogy to Zhang-Rice singlets in the cuprates.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2005-10-07 |
| Rights |
Copyright (c) 2005 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.95.156402
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.95.156402
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