Complex magnetic phase in submonolayer Fe stripes on Pt(997)

J. Honolka; T. Y. Lee; K. Kuhnke; D. Repetto; V. Sessi; P. Wahl; A. Buchsbaum; P. Varga; S. Gardonio; C. Carbone; S. R. Krishnakumar; P. Gambardella; M. Komelj; R. Singer; M. Faehnle; K. Fauth; G. Schuetz; A. Enders; K. Kern

doi:10.1103/PhysRevB.79.104430

Complex magnetic phase in submonolayer Fe stripes on Pt(997)

J. Honolka, T. Y. Lee, K. Kuhnke, D. Repetto, V. Sessi, P. Wahl, A. Buchsbaum, P. Varga, S. Gardonio, C. Carbone, S. R. Krishnakumar, P. Gambardella, M. Komelj, R. Singer, M. Faehnle, K. Fauth, G. Schuetz, A. Enders, K. Kern

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Abstract

Correlations between magnetism and morphology of iron nanostructures of monatomic height on Pt(997) substrates are studied using x-ray magnetic circular dichroism as well as scanning tunneling microscopy and helium scattering. A drastic collapse of the average magnetization by more than a factor of 4 is observed when increasing the iron coverage from 0.1 to 0.2 ML. This effect goes along with a softening of the magnetic anisotropy energy and a gradual reorientation of the magnetic easy axis from in plane to out of plane. The experimental findings together with electronic density-functional calculations suggest the formation of a complex magnetic phase in corrugated rim regions of Fe islands, leading to both ferromagnetic and antiferromagnetic exchange couplings of Fe moments depending on their various local bonding configurations.

Original language	English
Article number	104430
Pages (from-to)	-
Number of pages	7
Journal	Physical Review. B, Condensed matter and materials physics
Volume	79
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.79.104430
Publication status	Published - Mar 2009

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Honolka, J., Lee, T. Y., Kuhnke, K., Repetto, D., Sessi, V., Wahl, P., Buchsbaum, A., Varga, P., Gardonio, S., Carbone, C., Krishnakumar, S. R., Gambardella, P., Komelj, M., Singer, R., Faehnle, M., Fauth, K., Schuetz, G., Enders, A., & Kern, K. (2009). Complex magnetic phase in submonolayer Fe stripes on Pt(997). Physical Review. B, Condensed matter and materials physics, 79(10), -. Article 104430. https://doi.org/10.1103/PhysRevB.79.104430

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title = "Complex magnetic phase in submonolayer Fe stripes on Pt(997)",

abstract = "Correlations between magnetism and morphology of iron nanostructures of monatomic height on Pt(997) substrates are studied using x-ray magnetic circular dichroism as well as scanning tunneling microscopy and helium scattering. A drastic collapse of the average magnetization by more than a factor of 4 is observed when increasing the iron coverage from 0.1 to 0.2 ML. This effect goes along with a softening of the magnetic anisotropy energy and a gradual reorientation of the magnetic easy axis from in plane to out of plane. The experimental findings together with electronic density-functional calculations suggest the formation of a complex magnetic phase in corrugated rim regions of Fe islands, leading to both ferromagnetic and antiferromagnetic exchange couplings of Fe moments depending on their various local bonding configurations.",

author = "J. Honolka and Lee, \{T. Y.\} and K. Kuhnke and D. Repetto and V. Sessi and P. Wahl and A. Buchsbaum and P. Varga and S. Gardonio and C. Carbone and Krishnakumar, \{S. R.\} and P. Gambardella and M. Komelj and R. Singer and M. Faehnle and K. Fauth and G. Schuetz and A. Enders and K. Kern",

year = "2009",

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doi = "10.1103/PhysRevB.79.104430",

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Honolka, J, Lee, TY, Kuhnke, K, Repetto, D, Sessi, V, Wahl, P, Buchsbaum, A, Varga, P, Gardonio, S, Carbone, C, Krishnakumar, SR, Gambardella, P, Komelj, M, Singer, R, Faehnle, M, Fauth, K, Schuetz, G, Enders, A & Kern, K 2009, 'Complex magnetic phase in submonolayer Fe stripes on Pt(997)', Physical Review. B, Condensed matter and materials physics, vol. 79, no. 10, 104430, pp. -. https://doi.org/10.1103/PhysRevB.79.104430

TY - JOUR

T1 - Complex magnetic phase in submonolayer Fe stripes on Pt(997)

AU - Honolka, J.

AU - Lee, T. Y.

AU - Kuhnke, K.

AU - Repetto, D.

AU - Sessi, V.

AU - Wahl, P.

AU - Buchsbaum, A.

AU - Varga, P.

AU - Gardonio, S.

AU - Carbone, C.

AU - Krishnakumar, S. R.

AU - Gambardella, P.

AU - Komelj, M.

AU - Singer, R.

AU - Faehnle, M.

AU - Fauth, K.

AU - Schuetz, G.

AU - Enders, A.

AU - Kern, K.

PY - 2009/3

Y1 - 2009/3

N2 - Correlations between magnetism and morphology of iron nanostructures of monatomic height on Pt(997) substrates are studied using x-ray magnetic circular dichroism as well as scanning tunneling microscopy and helium scattering. A drastic collapse of the average magnetization by more than a factor of 4 is observed when increasing the iron coverage from 0.1 to 0.2 ML. This effect goes along with a softening of the magnetic anisotropy energy and a gradual reorientation of the magnetic easy axis from in plane to out of plane. The experimental findings together with electronic density-functional calculations suggest the formation of a complex magnetic phase in corrugated rim regions of Fe islands, leading to both ferromagnetic and antiferromagnetic exchange couplings of Fe moments depending on their various local bonding configurations.

AB - Correlations between magnetism and morphology of iron nanostructures of monatomic height on Pt(997) substrates are studied using x-ray magnetic circular dichroism as well as scanning tunneling microscopy and helium scattering. A drastic collapse of the average magnetization by more than a factor of 4 is observed when increasing the iron coverage from 0.1 to 0.2 ML. This effect goes along with a softening of the magnetic anisotropy energy and a gradual reorientation of the magnetic easy axis from in plane to out of plane. The experimental findings together with electronic density-functional calculations suggest the formation of a complex magnetic phase in corrugated rim regions of Fe islands, leading to both ferromagnetic and antiferromagnetic exchange couplings of Fe moments depending on their various local bonding configurations.

UR - https://www.scopus.com/pages/publications/65249105447

U2 - 10.1103/PhysRevB.79.104430

DO - 10.1103/PhysRevB.79.104430

M3 - Article

SN - 1098-0121

VL - 79

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JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

IS - 10

M1 - 104430

ER -

Complex magnetic phase in submonolayer Fe stripes on Pt(997)

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