Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering

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Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering. / Ukleev, V.; Tarnavich, V.; Tartakovskaya, E.; Lott, D.; Kapaklis, V.; Oleshkevych, A.; Gargiani, P.; Valvidares, M.; White, J. S.; Grigoriev, S. V.

In: Physical Review B, Vol. 100, No. 13, 134417, 14.10.2019.

Research output: Contribution to journal › Article › peer-review

Author

Ukleev, V. ; Tarnavich, V. ; Tartakovskaya, E. ; Lott, D. ; Kapaklis, V. ; Oleshkevych, A. ; Gargiani, P. ; Valvidares, M. ; White, J. S. ; Grigoriev, S. V. / Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering. In: Physical Review B. 2019 ; Vol. 100, No. 13.

BibTeX

@article{c7be3a1707ee428a9f08fb03798d0230,

title = "Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering",

abstract = "Magnetic rare-earth/nonmagnetic metal superlattices are well-known to display chiral spin helices in the rare-earth layers that propagate coherently across the nonmagnetic layers. However, the underlying mechanism that preserves the magnetic phase and chirality coherence across the nonmagnetic layers has remained elusive. In this paper, we use resonant and element-specific x-ray scattering to evidence directly the formation of two fundamentally different long-range modulations in a holmium/yttrium (Ho/Y) multilayer: the known Ho chiral spin helix with periodicity 25 {\AA} and a newly observed charge density wave with periodicity 16 {\AA} that propagates through both the Ho and nonmagnetic Y layer. With x-ray circular magnetic dichroism measurements ruling out the existence of a magnetic proximity effect induced moment in the nonmagnetic Y layers, we propose that the charge density wave is also chiral, thus providing the means for the transmittance of magnetic chirality coherence between Ho layers.",

author = "V. Ukleev and V. Tarnavich and E. Tartakovskaya and D. Lott and V. Kapaklis and A. Oleshkevych and P. Gargiani and M. Valvidares and White, {J. S.} and Grigoriev, {S. V.}",

year = "2019",

month = oct,

day = "14",

doi = "10.1103/PhysRevB.100.134417",

language = "English",

volume = "100",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "13",

}

RIS

TY - JOUR

T1 - Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering

AU - Ukleev, V.

AU - Tarnavich, V.

AU - Tartakovskaya, E.

AU - Lott, D.

AU - Kapaklis, V.

AU - Oleshkevych, A.

AU - Gargiani, P.

AU - Valvidares, M.

AU - White, J. S.

AU - Grigoriev, S. V.

PY - 2019/10/14

Y1 - 2019/10/14

N2 - Magnetic rare-earth/nonmagnetic metal superlattices are well-known to display chiral spin helices in the rare-earth layers that propagate coherently across the nonmagnetic layers. However, the underlying mechanism that preserves the magnetic phase and chirality coherence across the nonmagnetic layers has remained elusive. In this paper, we use resonant and element-specific x-ray scattering to evidence directly the formation of two fundamentally different long-range modulations in a holmium/yttrium (Ho/Y) multilayer: the known Ho chiral spin helix with periodicity 25 Å and a newly observed charge density wave with periodicity 16 Å that propagates through both the Ho and nonmagnetic Y layer. With x-ray circular magnetic dichroism measurements ruling out the existence of a magnetic proximity effect induced moment in the nonmagnetic Y layers, we propose that the charge density wave is also chiral, thus providing the means for the transmittance of magnetic chirality coherence between Ho layers.

AB - Magnetic rare-earth/nonmagnetic metal superlattices are well-known to display chiral spin helices in the rare-earth layers that propagate coherently across the nonmagnetic layers. However, the underlying mechanism that preserves the magnetic phase and chirality coherence across the nonmagnetic layers has remained elusive. In this paper, we use resonant and element-specific x-ray scattering to evidence directly the formation of two fundamentally different long-range modulations in a holmium/yttrium (Ho/Y) multilayer: the known Ho chiral spin helix with periodicity 25 Å and a newly observed charge density wave with periodicity 16 Å that propagates through both the Ho and nonmagnetic Y layer. With x-ray circular magnetic dichroism measurements ruling out the existence of a magnetic proximity effect induced moment in the nonmagnetic Y layers, we propose that the charge density wave is also chiral, thus providing the means for the transmittance of magnetic chirality coherence between Ho layers.

UR - http://www.scopus.com/inward/record.url?scp=85073442593&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.100.134417

DO - 10.1103/PhysRevB.100.134417

M3 - Article

AN - SCOPUS:85073442593

VL - 100

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 13

M1 - 134417

ER -

ID: 76659316