Persistence of magnetic order in a highly excited Cu2+ state in CuO

U. Staub; R. A. De Souza; P. Beaud; E. Möhr-Vorobeva; G. Ingold; A. Caviezel; V. Scagnoli; B. Delley; J. J. Turner; O. Krupin; W. S. Lee; Y. D. Chuang; L. Patthey; R. G. Moore; D. Lu; M. Yi; P. S. Kirchmann; M. Trigo; P. Denes; D. Doering; Z. Hussain; Z. X. Shen; D. Prabhakaran; A. T. Boothroyd; S. L. Johnson

doi:10.1103/PhysRevB.89.220401

Persistence of magnetic order in a highly excited Cu2+ state in CuO

U. Staub, R. A. De Souza, P. Beaud, E. Möhr-Vorobeva, G. Ingold, A. Caviezel, V. Scagnoli, B. Delley, J. J. Turner, O. Krupin, W. S. Lee, Y. D. Chuang, L. Patthey, R. G. Moore, D. Lu, M. Yi, P. S. Kirchmann, M. Trigo, P. Denes, D. DoeringZ. Hussain, Z. X. Shen, D. Prabhakaran, A. T. Boothroyd, S. L. Johnson

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Abstract

We use ultrafast resonant x-ray diffraction to study the magnetic order in CuO under conditions of high electronic excitation. By measuring changes in the spectral shape of the Cu2+ magnetic (1/2 0 â1/2) reflection we investigate how an intense optical pump pulse perturbs the electronic and magnetic states. We observe an energy shift in the magnetic resonance at short times after the pump pulse. This shift is compared with expectations from band structure calculations at different electronic temperatures. This spectral line shift indicates that although the electrons are heated to effective electron temperatures far above TN on a time scale faster than the experimental resolution, magnetic order persists in this highly excited state for several hundred femtoseconds.

Original language	English
Article number	220401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.89.220401
State	Published - Jun 2 2014
Externally published	Yes

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Staub, U., De Souza, R. A., Beaud, P., Möhr-Vorobeva, E., Ingold, G., Caviezel, A., Scagnoli, V., Delley, B., Turner, J. J., Krupin, O., Lee, W. S., Chuang, Y. D., Patthey, L., Moore, R. G., Lu, D., Yi, M., Kirchmann, P. S., Trigo, M., Denes, P., ... Johnson, S. L. (2014). Persistence of magnetic order in a highly excited Cu2+ state in CuO. Physical Review B - Condensed Matter and Materials Physics, 89(22), Article 220401. https://doi.org/10.1103/PhysRevB.89.220401

@article{d90086ec0519477d8b41121ba272ada1,

title = "Persistence of magnetic order in a highly excited Cu2+ state in CuO",

abstract = "We use ultrafast resonant x-ray diffraction to study the magnetic order in CuO under conditions of high electronic excitation. By measuring changes in the spectral shape of the Cu2+ magnetic (1/2 0 {\^a}1/2) reflection we investigate how an intense optical pump pulse perturbs the electronic and magnetic states. We observe an energy shift in the magnetic resonance at short times after the pump pulse. This shift is compared with expectations from band structure calculations at different electronic temperatures. This spectral line shift indicates that although the electrons are heated to effective electron temperatures far above TN on a time scale faster than the experimental resolution, magnetic order persists in this highly excited state for several hundred femtoseconds.",

author = "U. Staub and {De Souza}, {R. A.} and P. Beaud and E. M{\"o}hr-Vorobeva and G. Ingold and A. Caviezel and V. Scagnoli and B. Delley and Turner, {J. J.} and O. Krupin and Lee, {W. S.} and Chuang, {Y. D.} and L. Patthey and Moore, {R. G.} and D. Lu and M. Yi and Kirchmann, {P. S.} and M. Trigo and P. Denes and D. Doering and Z. Hussain and Shen, {Z. X.} and D. Prabhakaran and Boothroyd, {A. T.} and Johnson, {S. L.}",

year = "2014",

month = jun,

day = "2",

doi = "10.1103/PhysRevB.89.220401",

language = "English",

volume = "89",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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publisher = "American Physical Society",

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Staub, U, De Souza, RA, Beaud, P, Möhr-Vorobeva, E, Ingold, G, Caviezel, A, Scagnoli, V, Delley, B, Turner, JJ, Krupin, O, Lee, WS, Chuang, YD, Patthey, L, Moore, RG, Lu, D, Yi, M, Kirchmann, PS, Trigo, M, Denes, P, Doering, D, Hussain, Z, Shen, ZX, Prabhakaran, D, Boothroyd, AT & Johnson, SL 2014, 'Persistence of magnetic order in a highly excited Cu2+ state in CuO', Physical Review B - Condensed Matter and Materials Physics, vol. 89, no. 22, 220401. https://doi.org/10.1103/PhysRevB.89.220401

TY - JOUR

T1 - Persistence of magnetic order in a highly excited Cu2+ state in CuO

AU - Staub, U.

AU - De Souza, R. A.

AU - Beaud, P.

AU - Möhr-Vorobeva, E.

AU - Ingold, G.

AU - Caviezel, A.

AU - Scagnoli, V.

AU - Delley, B.

AU - Turner, J. J.

AU - Krupin, O.

AU - Lee, W. S.

AU - Chuang, Y. D.

AU - Patthey, L.

AU - Moore, R. G.

AU - Lu, D.

AU - Yi, M.

AU - Kirchmann, P. S.

AU - Trigo, M.

AU - Denes, P.

AU - Doering, D.

AU - Hussain, Z.

AU - Shen, Z. X.

AU - Prabhakaran, D.

AU - Boothroyd, A. T.

AU - Johnson, S. L.

PY - 2014/6/2

Y1 - 2014/6/2

N2 - We use ultrafast resonant x-ray diffraction to study the magnetic order in CuO under conditions of high electronic excitation. By measuring changes in the spectral shape of the Cu2+ magnetic (1/2 0 â1/2) reflection we investigate how an intense optical pump pulse perturbs the electronic and magnetic states. We observe an energy shift in the magnetic resonance at short times after the pump pulse. This shift is compared with expectations from band structure calculations at different electronic temperatures. This spectral line shift indicates that although the electrons are heated to effective electron temperatures far above TN on a time scale faster than the experimental resolution, magnetic order persists in this highly excited state for several hundred femtoseconds.

AB - We use ultrafast resonant x-ray diffraction to study the magnetic order in CuO under conditions of high electronic excitation. By measuring changes in the spectral shape of the Cu2+ magnetic (1/2 0 â1/2) reflection we investigate how an intense optical pump pulse perturbs the electronic and magnetic states. We observe an energy shift in the magnetic resonance at short times after the pump pulse. This shift is compared with expectations from band structure calculations at different electronic temperatures. This spectral line shift indicates that although the electrons are heated to effective electron temperatures far above TN on a time scale faster than the experimental resolution, magnetic order persists in this highly excited state for several hundred femtoseconds.

UR - http://www.scopus.com/inward/record.url?scp=84902208804&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.89.220401

DO - 10.1103/PhysRevB.89.220401

M3 - Article

AN - SCOPUS:84902208804

SN - 1098-0121

VL - 89

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

M1 - 220401

ER -

Persistence of magnetic order in a highly excited Cu2+ state in CuO

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