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Herrero‐Martín, Javier; Subı́as, G.; García, J.; Blasco, Javier; Sánchez, M. C.

doi:10.1103/physrevb.79.045121

Cited by 33 publications

(46 citation statements)

References 22 publications

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“…The results are compared to recently published XANES data [12]. The different sensitivity of the two techniques allows us to disentangle the evolution of the electronic structure at the Mn sites from the local geometrical anisotropy as a function of doping.…”

Section: +mentioning

confidence: 90%

“…The elongates by about one order of magnitude less [12,27]. The local geometry is tetragonally distorted for x=0 and develops towards an octahedral coordination for x=0.5 [7].…”

Section: A Single Crystalsmentioning

confidence: 96%

“…: Mn 4+ ) in the ground state charge ordered phase for x=0.5 (T< 230 K) has been challenged by means of XAS and suggested that superlattice reflections have their origin on two differentiated Mn sites in the cell with a very similar associated electronic density [12]. Several theoretical calculations point in the same direction [13,14], thereby minimizing the variations in 3d orbital occupation in different Mn sites.…”

Section: +mentioning

confidence: 99%

“…A linear dichroism has also been observed in the X-ray absorption K main edge [12] and the question arises whether the linear dichroism has its origin in the electronic structure or the local coordination.…”

Section: A Single Crystalsmentioning

confidence: 99%

“…Single crystals were grown from the rods by using a homemade floating zone furnace as described in ref. [12].…”

Section: Methodsmentioning

confidence: 99%

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Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
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The effect of doping on the electronic structure at the Mn sites in the La 1-x Sr 1+x MnO 4 series (x=0, 0.3 and 0.5) was studied by means of non-resonant hard X-ray emission spectroscopy (XES). We observe a linear dichroism in the Mn Kβ main lines (3p to 1s transitions) that is strongest for x=0 and decreases with increasing x to 0.5. The Mn Kβ main lines in the polycrystalline samples change considerably less upon increasing the hole doping (substitution of La by Sr) than it would be expected based on the change of formal valence. From this we conclude that the charge and spin density at the Mn sites are only little affected by doping.This implies that holes injected in the La 1-x Sr 1+x MnO 4 series mainly result in a decrease of charge density on the oxygen atoms, i.e. oxygen takes part in the charge balancing. These findings are supported by many-body cluster calculations.

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Section: +mentioning

confidence: 90%

“…The elongates by about one order of magnitude less [12,27]. The local geometry is tetragonally distorted for x=0 and develops towards an octahedral coordination for x=0.5 [7].…”

Section: A Single Crystalsmentioning

confidence: 96%

Section: +mentioning

confidence: 99%

Section: A Single Crystalsmentioning

confidence: 99%

“…Single crystals were grown from the rods by using a homemade floating zone furnace as described in ref. [12].…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
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Interplay between Cation and Charge Ordering in La_1/3Sr_2/3FeO₃ Superlattices

Krick

Lee

Sichel-Tissot

et al. 2016

Adv Elect Materials

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The electronic properties of digital superlattices are reported, which are cation‐ordered analogs of the perovskite La1/3Sr2/3FeO3, a material that undergoes a charge‐ordering transition. Superlattices of LaFeO3 (LFO), an antiferromagnetic insulator, and SrFeO3 (SFO), a conductor with a helical magnetic ground state, are fabricated via oxide molecular beam epitaxy. Three isocompositional superlattices with repeat structures of SSLSSL (S2), SSSLSL (S3), and SSSSLL (S4) (S = SFO, L = LFO) are studied with cation orderings along the [001] and [111] directions for experimental and computational work, respectively. The experimental superlattice structures are confirmed via synchrotron X‐ray diffraction and corresponding simulations of (00L) crystal truncation rods. The S2 and S3 superlattices are found to undergo an electronic phase transition as measured by a discontinuity in the temperature‐dependent resistivity similar to the random alloy, indicating that the superlattices do not behave as a simple combination of LFO and SFO. The charge‐ordering transition is not observed in the S4 sample. The electronic structure calculations using density functional theory, confirming the energetic favorability of charge ordering in the S2 and S3 structures compared to the S4 structure, are consistent with experimental trends.

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Transition-Metal Perovskites

Abakumov

Tsirlin

Антипов

2013

Comprehensive Inorganic Chemistry II

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Evidence for charge-density-wave nature of the charge-ordered phase inLa1/3Sr2/3FeO3

Cited by 33 publications

References 22 publications

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
View full text Add to dashboard Cite

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
View full text Add to dashboard Cite

Interplay between Cation and Charge Ordering in La_1/3Sr_2/3FeO₃ Superlattices

Transition-Metal Perovskites

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Evidence for charge-density-wave nature of the charge-ordered phase inLa1/3Sr2/3FeO3

Cited by 33 publications

References 22 publications

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnOHerrero‐Martín1, Mirone2, Fernández-Rodríguez3 et al. 2010Phys. Rev. B274211View full textAdd to dashboardCite

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnOHerrero‐Martín1, Mirone2, Fernández-Rodríguez3 et al. 2010Phys. Rev. B274211View full textAdd to dashboardCite

Interplay between Cation and Charge Ordering in La1/3Sr2/3FeO3 Superlattices

Transition-Metal Perovskites

Contact Info

Product

Resources

About

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
View full text Add to dashboard Cite

Hard x-ray probe to study doping-dependent electron redistribution and strong covalency inLa1−xSr1+xMnO
Herrero‐Martín
¹
,
Mirone
²
,
Fernández-Rodríguez
³

et al. 2010
Phys. Rev. B
27
4
21
1
View full text Add to dashboard Cite

Interplay between Cation and Charge Ordering in La_1/3Sr_2/3FeO₃ Superlattices