Magnetic Correlations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant="normal">Ni</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn><mml:mo>+</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>

Aeppli, G.; Buttrey, D. J.

doi:10.1103/physrevlett.61.203

Cited by 164 publications

(45 citation statements)

References 12 publications

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“…La NiO >B , +0.15 (1), crystallizes in a tetragonal F4/mmm (a nonstandard setting of I4/mmm) structure in which excess oxygen atoms occupy interstitial sites along the stacking axis (2). Reduced to stoichiometry ( "0), La NiO breaks F4/mmm symmetry below ¹ +770 K and adopts an orthorhombic Bmab (nonstandard setting of Cmca) structure (Fig.…”

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Ling

Argyriou

et al. 2000

Journal of Solid State Chemistry

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Section: Introductionmentioning

confidence: 96%

“…The low-temperature transition at ¹ is foreshadowed in the Bmab regime by strong anisotropic broadening of re#ections indicating orthorhombic strain. Below ¹ , +330 K, La NiO is a three-dimensionally antiferromagnetically ordered insulator (1). La NiO >B is a semiconductor (3).…”

Section: Introductionmentioning

confidence: 99%

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Ling

Argyriou

et al. 2000

Journal of Solid State Chemistry

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“…[4][5][6][7][8] It is also considered that a small number of holes introduced by doping are responsible for the disappearance of long-range AF ordering.…”

Section: Introductionmentioning

confidence: 99%

Stripe formation in high-T_csuperconductors

Yanagisawa

Koike

Miyazaki

et al. 2001

J. Phys.: Condens. Matter

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The non-uniform ground state of the two-dimensional three-band Hubbard model for the oxide high-Tc superconductors is investigated using a variational Mont Carlo method. We examine the effect produced by holes doped into the antiferromagnetic (AF) background in the underdoped region. It is shown that the AF state with spin modulations and stripes is stabilized due to holes travelling in the CuO plane. The structures of modulated AF spins are dependent upon the parameters used in the model. The effect of boundary conditions is reduced for large systems. We show that there is a region where incommensurability is proportional to the hole density. Our results give a consistent description of stripes observed by the neutron scattering experiments based on the three-band model for the CuO plane.

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“…The electronic and magnetic properties of the nickelate La 2Ϫx Sr x NiO 4Ϫ␦ have been extensively studied in the past [1][2][3][4] as it possesses many features similar to those of the high-T c superconductor La 2Ϫx Sr x CuO 4Ϫ␦ . Both systems have the same basic tetragonal K 2 NiF 4 structure, which consists of an alternate stacking of KF rock-salt-type layers and KNiF 3 perovskite-type layers.…”

Section: Introductionmentioning

confidence: 99%

Hole distribution between the Ni3dand O2porbitals inNd2−x
Hu
¹
,
Golden
²
,
Fink
³

et al. 2000
Phys. Rev. B
51
3
35
0
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General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. We present a joint experimental and theoretical study of x-ray absorption at the O-K and Ni-L 2,3 thresholds of Nd 2Ϫx Sr x NiO 4Ϫ␦ providing an analysis of the distribution of doped holes induced by Sr substitution between Ni 3d and O 2p orbitals. The preedge peak in the O-K x-ray absorption ͑XAS͒ spectra, reflecting holes located in the O 2p orbitals, increases monotonically with the degree of Sr doping up to the maximum doping level studied (xϭ1.4). The saturation in the relative intensity of the O-K preedge peak in the analogous lanthanum nickelate reported in the literature is shown to be most likely due to surface oxygen deficiency. Furthermore, the experimental Ni-L 2,3 XAS spectrum of the Ni͑III͒ nickelate Nd 1.1 Sr 0.9 NiO 3.95 was simulated by a cluster approach, including charge-transfer and complete multiplet interactions, and compared with the corresponding spectrum of the Ni͑III͒ system Nd 2 Li 0.5 Ni 0.5 O 4 . The 3d 7 weight in the ground state of Nd 1.1 Sr 0.9 NiO 3.95 was found to be 42%, somewhat smaller than the value of 51% found for Nd 2 Li 0.5 Ni 0.5 O 4 . This indicates the influence of nonlocal effects in x-ray-absorption spectroscopy, which, in this case is due to the increased covalency in the Sr-doped system as a result of inter-NiO 6 -cluster interaction. Such interactions are absent in Nd 2 Li 0.5 Ni 0.5 O 4 , which is characterized by having isolated NiO 6 clusters.

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Magnetic Correlations inLa2NiO4+δ

Cited by 164 publications

References 12 publications

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Stripe formation in high-T_csuperconductors

Hole distribution between the Ni3dand O2porbitals inNd2−x
Hu
¹
,
Golden
²
,
Fink
³

et al. 2000
Phys. Rev. B
51
3
35
0
View full text Add to dashboard Cite

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Magnetic Correlations inLa2NiO4+δ

Cited by 164 publications

References 12 publications

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Neutron Diffraction Study of La3Ni2O7: Structural Relationships Among n=1, 2, and 3 Phases Lan+1NinO3n+1

Stripe formation in high-Tcsuperconductors

Hole distribution between the Ni3dand O2porbitals inNd2−xHu1, Golden2, Fink3 et al. 2000Phys. Rev. B513350View full textAdd to dashboardCite

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Stripe formation in high-T_csuperconductors

Hole distribution between the Ni3dand O2porbitals inNd2−x
Hu
¹
,
Golden
²
,
Fink
³

et al. 2000
Phys. Rev. B
51
3
35
0
View full text Add to dashboard Cite