Antiferromagnetic-ferromagnetic phase transition in FeRh probed by x-ray magnetic circular dichroism

C. Stamm; J. U. Thiele; T. Kachel; I. Radu; P. Ramm; M. Kosuth; J. Minár; H. Ebert; H. A. Dürr; W. Eberhardt; C. H. Back

doi:10.1103/PhysRevB.77.184401

Antiferromagnetic-ferromagnetic phase transition in FeRh probed by x-ray magnetic circular dichroism

C. Stamm, J. U. Thiele, T. Kachel, I. Radu, P. Ramm, M. Kosuth, J. Minár, H. Ebert, H. A. Dürr, W. Eberhardt, C. H. Back

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Abstract

The phase transition from antiferromagnetic to ferromagnetic ordering in FeRh is investigated in an element specific way by means of x-ray absorption spectroscopy. Dichroism sum rules allow us to determine spin and orbital moments of the two elements as the system is driven through the phase transition. Increasing the temperature from 300 to 450 K, the magnetic moments in Fe and Rh both evolve from zero to their final value, while the ratio of Rh to Fe moments stays constant. Our experimental findings are supported by the results of fully relativistic ab initio calculations.

Original language	English
Article number	184401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.77.184401
State	Published - 2 May 2008
Externally published	Yes

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Stamm, C., Thiele, J. U., Kachel, T., Radu, I., Ramm, P., Kosuth, M., Minár, J., Ebert, H., Dürr, H. A., Eberhardt, W., & Back, C. H. (2008). Antiferromagnetic-ferromagnetic phase transition in FeRh probed by x-ray magnetic circular dichroism. Physical Review B - Condensed Matter and Materials Physics, 77(18), Article 184401. https://doi.org/10.1103/PhysRevB.77.184401

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abstract = "The phase transition from antiferromagnetic to ferromagnetic ordering in FeRh is investigated in an element specific way by means of x-ray absorption spectroscopy. Dichroism sum rules allow us to determine spin and orbital moments of the two elements as the system is driven through the phase transition. Increasing the temperature from 300 to 450 K, the magnetic moments in Fe and Rh both evolve from zero to their final value, while the ratio of Rh to Fe moments stays constant. Our experimental findings are supported by the results of fully relativistic ab initio calculations.",

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doi = "10.1103/PhysRevB.77.184401",

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AU - Stamm, C.

AU - Thiele, J. U.

AU - Kachel, T.

AU - Radu, I.

AU - Ramm, P.

AU - Kosuth, M.

AU - Minár, J.

AU - Ebert, H.

AU - Dürr, H. A.

AU - Eberhardt, W.

AU - Back, C. H.

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N2 - The phase transition from antiferromagnetic to ferromagnetic ordering in FeRh is investigated in an element specific way by means of x-ray absorption spectroscopy. Dichroism sum rules allow us to determine spin and orbital moments of the two elements as the system is driven through the phase transition. Increasing the temperature from 300 to 450 K, the magnetic moments in Fe and Rh both evolve from zero to their final value, while the ratio of Rh to Fe moments stays constant. Our experimental findings are supported by the results of fully relativistic ab initio calculations.

AB - The phase transition from antiferromagnetic to ferromagnetic ordering in FeRh is investigated in an element specific way by means of x-ray absorption spectroscopy. Dichroism sum rules allow us to determine spin and orbital moments of the two elements as the system is driven through the phase transition. Increasing the temperature from 300 to 450 K, the magnetic moments in Fe and Rh both evolve from zero to their final value, while the ratio of Rh to Fe moments stays constant. Our experimental findings are supported by the results of fully relativistic ab initio calculations.

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DO - 10.1103/PhysRevB.77.184401

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VL - 77

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 18

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ER -

Antiferromagnetic-ferromagnetic phase transition in FeRh probed by x-ray magnetic circular dichroism

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