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Aharony, Amnon; Birgeneau, R. J.; Coniglio, Antonio; Kastner, M. A.; Stanley, H. Eugene

doi:10.1103/physrevlett.60.1330

Cited by 681 publications

(203 citation statements)

References 20 publications

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“…Small magnetic moments at the oxygen sites are induced, which are oriented oppositely to the copper spins. This result is consistent with the overcompensation of the antiferromagnetic superexchange by an effective ferromagnetic Cu-Cu coupling for all values of U d > ∆, supporting the picture of Aharony et al [1]. In the one-particle spectrum of Fig.…”

Section: A Single-hole Solutionssupporting

confidence: 89%

“…On the other hand, holes introduce extra oxygen spins, which couple antiferromagnetically to both their neighboring Cu spins, resulting in a strong ferromagnetic coupling between those spins [1]. This ferromagnetic bond strongly frustrates the antiferromagnet, leading to its rapid destruction [1,2,3]. This picture is supported by experiments on cuprates doped with nonmagnetic impurities such as zinc [4,5].…”

Section: Introductionmentioning

confidence: 87%

“…This asymmetry is easily understood: Electrons dilute the antiferromagnet, which perturbs the order relatively weakly. On the other hand, holes introduce extra oxygen spins, which couple antiferromagnetically to both their neighboring Cu spins, resulting in a strong ferromagnetic coupling between those spins [1]. This ferromagnetic bond strongly frustrates the antiferromagnet, leading to its rapid destruction [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, several authors propose that hole doping leads to the appearance of nontrivial structures of the surrounding Cu spins, such as dipolar configurations [1,7], vortices or merons [8,9,10], skyrmions [11,12,13], and domain walls or stripes [8,9,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

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Topological doping of repulsive Hubbard models

Kesting

Timm

2003

Physica B: Condensed Matter

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The spin configuration induced by single holes and hole pairs doped into stoichiometric, antiferromagnetic cuprates is considered. Unrestricted Hartree-Fock calculations for the three-band Hubbard model are employed to study spin-polaron and vortex-like (meron) solutions. Meron solutions for a single hole are found to be metastable with higher energy than spin polarons. We observe that the meron solution shifts from site-centered to bond-centered as the interaction is increased. Meronantimeron solutions for hole pairs are found to be unstable. The results are in agreement with earlier findings for the one-band Hubbard model. However, we find that the Hubbard interaction of the one-band model has to be chosen similar to the one of the three-band model to obtain comparable results, not of the order of the charge-transfer gap, as previously expected.

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Section: A Single-hole Solutionssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Topological doping of repulsive Hubbard models

Kesting

Timm

2003

Physica B: Condensed Matter

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“…At these concentrations, the strong decrease of M † with localized hole doping is most probably due to frustration in the planes. 7 Given the mean field DM free energy per site, −4DM † M F , where D is the DM interaction energy, 4 the ferromagnetic moment is given by…”

mentioning

confidence: 99%

Comment on “Strong dependence of the interlayer coupling on the hole mobility in antiferromagneticLa2−xSrxCuO4
Korenblit
¹
,
Aharony
²
,
Entin‐Wohlman
³

2006
Phys. Rev. B
1
0
0
0
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Heteroanionic Materials by Design: Progress Toward Targeted Properties

et al. 2019

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The burgeoning field of anion engineering in oxide‐based compounds aims to tune physical properties by incorporating additional anions of different size, electronegativity, and charge. For example, oxychalcogenides, oxynitrides, oxypnictides, and oxyhalides may display new or enhanced responses not readily predicted from or even absent in the simpler homoanionic (oxide) compounds because of their proximity to the ionocovalent‐bonding boundary provided by contrasting polarizabilities of the anions. In addition, multiple anions allow heteroanionic materials to span a more complex atomic structure design palette and interaction space than the homoanionic oxide‐only analogs. Here, established atomic and electronic principles for the rational design of properties in heteroanionic materials are contextualized. Also described are synergistic quantum mechanical methods and laboratory experiments guided by these principles to achieve superior properties. Lastly, open challenges in both the synthesis and the understanding and prediction of the electronic, optical, and magnetic properties afforded by anion‐engineering principles in heteroanionic materials are reviewed.

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Magnetic phase diagram and magnetic pairing in dopedLa2CuO4

Cited by 681 publications

References 20 publications

Topological doping of repulsive Hubbard models

Topological doping of repulsive Hubbard models

Comment on “Strong dependence of the interlayer coupling on the hole mobility in antiferromagneticLa2−xSrxCuO4
Korenblit
¹
,
Aharony
²
,
Entin‐Wohlman
³

2006
Phys. Rev. B
1
0
0
0
View full text Add to dashboard Cite

Heteroanionic Materials by Design: Progress Toward Targeted Properties

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Magnetic phase diagram and magnetic pairing in dopedLa2CuO4

Cited by 681 publications

References 20 publications

Topological doping of repulsive Hubbard models

Topological doping of repulsive Hubbard models

Comment on “Strong dependence of the interlayer coupling on the hole mobility in antiferromagneticLa2−xSrxCuO4Korenblit1, Aharony2, Entin‐Wohlman3 2006Phys. Rev. B1000View full textAdd to dashboardCite

Heteroanionic Materials by Design: Progress Toward Targeted Properties

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Product

Resources

About

Comment on “Strong dependence of the interlayer coupling on the hole mobility in antiferromagneticLa2−xSrxCuO4
Korenblit
¹
,
Aharony
²
,
Entin‐Wohlman
³

2006
Phys. Rev. B
1
0
0
0
View full text Add to dashboard Cite