Structural and magnetic dynamics of a laser induced phase transition in FeRh

S. O. Mariager; F. Pressacco; G. Ingold; A. Caviezel; E. Möhr-Vorobeva; P. Beaud; S. L. Johnson; C. J. Milne; E. Mancini; S. Moyerman; E. E. Fullerton; R. Feidenhans'L; C. H. Back; C. Quitmann

doi:10.1103/PhysRevLett.108.087201

Structural and magnetic dynamics of a laser induced phase transition in FeRh

S. O. Mariager, F. Pressacco, G. Ingold, A. Caviezel, E. Möhr-Vorobeva, P. Beaud, S. L. Johnson, C. J. Milne, E. Mancini, S. Moyerman, E. E. Fullerton, R. Feidenhans'L, C. H. Back, C. Quitmann

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93 Scopus citations

Abstract

We use time-resolved x-ray diffraction and magneto-optical Kerr effect to study the laser-induced antiferromagnetic to ferromagnetic phase transition in FeRh. The structural response is given by the nucleation of independent ferromagnetic domains (τ ₁∼30ps). This is significantly faster than the magnetic response (τ ₂∼60ps) given by the subsequent domain realignment. X-ray diffraction shows that the two phases coexist on short time scales and that the phase transition is limited by the speed of sound. A nucleation model describing both the structural and magnetic dynamics is presented.

Original language	English
Article number	087201
Journal	Physical Review Letters
Volume	108
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.108.087201
State	Published - 21 Feb 2012
Externally published	Yes

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Mariager, S. O., Pressacco, F., Ingold, G., Caviezel, A., Möhr-Vorobeva, E., Beaud, P., Johnson, S. L., Milne, C. J., Mancini, E., Moyerman, S., Fullerton, E. E., Feidenhans'L, R., Back, C. H., & Quitmann, C. (2012). Structural and magnetic dynamics of a laser induced phase transition in FeRh. Physical Review Letters, 108(8), Article 087201. https://doi.org/10.1103/PhysRevLett.108.087201

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abstract = "We use time-resolved x-ray diffraction and magneto-optical Kerr effect to study the laser-induced antiferromagnetic to ferromagnetic phase transition in FeRh. The structural response is given by the nucleation of independent ferromagnetic domains (τ 1∼30ps). This is significantly faster than the magnetic response (τ 2∼60ps) given by the subsequent domain realignment. X-ray diffraction shows that the two phases coexist on short time scales and that the phase transition is limited by the speed of sound. A nucleation model describing both the structural and magnetic dynamics is presented.",

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doi = "10.1103/PhysRevLett.108.087201",

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T1 - Structural and magnetic dynamics of a laser induced phase transition in FeRh

AU - Mariager, S. O.

AU - Pressacco, F.

AU - Ingold, G.

AU - Caviezel, A.

AU - Möhr-Vorobeva, E.

AU - Beaud, P.

AU - Johnson, S. L.

AU - Milne, C. J.

AU - Mancini, E.

AU - Moyerman, S.

AU - Fullerton, E. E.

AU - Feidenhans'L, R.

AU - Back, C. H.

AU - Quitmann, C.

PY - 2012/2/21

Y1 - 2012/2/21

N2 - We use time-resolved x-ray diffraction and magneto-optical Kerr effect to study the laser-induced antiferromagnetic to ferromagnetic phase transition in FeRh. The structural response is given by the nucleation of independent ferromagnetic domains (τ 1∼30ps). This is significantly faster than the magnetic response (τ 2∼60ps) given by the subsequent domain realignment. X-ray diffraction shows that the two phases coexist on short time scales and that the phase transition is limited by the speed of sound. A nucleation model describing both the structural and magnetic dynamics is presented.

AB - We use time-resolved x-ray diffraction and magneto-optical Kerr effect to study the laser-induced antiferromagnetic to ferromagnetic phase transition in FeRh. The structural response is given by the nucleation of independent ferromagnetic domains (τ 1∼30ps). This is significantly faster than the magnetic response (τ 2∼60ps) given by the subsequent domain realignment. X-ray diffraction shows that the two phases coexist on short time scales and that the phase transition is limited by the speed of sound. A nucleation model describing both the structural and magnetic dynamics is presented.

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DO - 10.1103/PhysRevLett.108.087201

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VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Structural and magnetic dynamics of a laser induced phase transition in FeRh

Abstract

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