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Title: X-ray 2p photoelectron and L-alpha resonant x-ray emission spectraof the 3d metals in Ni2MnZ (Z=In,Sn,Sb) Heusler alloys

Abstract

Magnetic and chemical bonding effects in Heusler alloysNi2MnIn, Ni2MnSn, and Ni2MnSb were studied by soft x-ray spectroscopy.Exchange splitting detected in Mn 2p core-level x-ray photoelectronspectra and an increase of the Mn L-beta/L-alpha intensity ratio innonresonant x-ray emission spectra show that atomic magnetic moment at Mnis higher than that of pure metal. Spin polarized density of statescalculations and comparative analysis of Mn and Ni L-alpha resonant x-rayemission spectra RXES demonstrate that the spin splitting in Mn 3d shellis larger than in Ni 3d shell. The d-d transitions observed in L-alphaRXES of Mn and Ni are suggested to be more intensive for Mn than for Nivalence electrons when initiated by off-resonant excitations.Experimental findings are supported by photoelectron spectra calculationsand developed two-step model of resonant x-ray emission. The interplaybetween Mn L-alpha RXES and calculated magnetic moments of Mn atoms inalloys as a function of the type of Z element is discussed.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
COLLABORATION - U.Saskatchewan/Canada
OSTI Identifier:
923008
Report Number(s):
LBNL-61311
R&D Project: 0; BnR: YN0100000; TRN: US200804%%838
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: PHYSICAL REVIEW B; Journal Volume: 74; Related Information: Journal Publication Date: 08/01/2006
Country of Publication:
United States
Language:
English
Subject:
75; ALLOYS; ATOMS; BONDING; ELECTRONS; EMISSION SPECTRA; HEUSLER ALLOYS; MAGNETIC MOMENTS; SPECTRA; SPIN; VALENCE; X-RAY SPECTROSCOPY; Heusler alloys soft x-ray emission x-ray photoelectronspectroscopy

Citation Formats

Yablonskikh, M.V., Braun, J., Kuchel, M.T., Postnikov, A.V., Denlinger, J.D., Shreder, E.I., Yarmoshenko, Y.M., Neumann, M., and Moewes, A. X-ray 2p photoelectron and L-alpha resonant x-ray emission spectraof the 3d metals in Ni2MnZ (Z=In,Sn,Sb) Heusler alloys. United States: N. p., 2006. Web. doi:10.1103/PhysRevB.74.085103.
Yablonskikh, M.V., Braun, J., Kuchel, M.T., Postnikov, A.V., Denlinger, J.D., Shreder, E.I., Yarmoshenko, Y.M., Neumann, M., & Moewes, A. X-ray 2p photoelectron and L-alpha resonant x-ray emission spectraof the 3d metals in Ni2MnZ (Z=In,Sn,Sb) Heusler alloys. United States. doi:10.1103/PhysRevB.74.085103.
Yablonskikh, M.V., Braun, J., Kuchel, M.T., Postnikov, A.V., Denlinger, J.D., Shreder, E.I., Yarmoshenko, Y.M., Neumann, M., and Moewes, A. Tue . "X-ray 2p photoelectron and L-alpha resonant x-ray emission spectraof the 3d metals in Ni2MnZ (Z=In,Sn,Sb) Heusler alloys". United States. doi:10.1103/PhysRevB.74.085103.
@article{osti_923008,
title = {X-ray 2p photoelectron and L-alpha resonant x-ray emission spectraof the 3d metals in Ni2MnZ (Z=In,Sn,Sb) Heusler alloys},
author = {Yablonskikh, M.V. and Braun, J. and Kuchel, M.T. and Postnikov, A.V. and Denlinger, J.D. and Shreder, E.I. and Yarmoshenko, Y.M. and Neumann, M. and Moewes, A.},
abstractNote = {Magnetic and chemical bonding effects in Heusler alloysNi2MnIn, Ni2MnSn, and Ni2MnSb were studied by soft x-ray spectroscopy.Exchange splitting detected in Mn 2p core-level x-ray photoelectronspectra and an increase of the Mn L-beta/L-alpha intensity ratio innonresonant x-ray emission spectra show that atomic magnetic moment at Mnis higher than that of pure metal. Spin polarized density of statescalculations and comparative analysis of Mn and Ni L-alpha resonant x-rayemission spectra RXES demonstrate that the spin splitting in Mn 3d shellis larger than in Ni 3d shell. The d-d transitions observed in L-alphaRXES of Mn and Ni are suggested to be more intensive for Mn than for Nivalence electrons when initiated by off-resonant excitations.Experimental findings are supported by photoelectron spectra calculationsand developed two-step model of resonant x-ray emission. The interplaybetween Mn L-alpha RXES and calculated magnetic moments of Mn atoms inalloys as a function of the type of Z element is discussed.},
doi = {10.1103/PhysRevB.74.085103},
journal = {PHYSICAL REVIEW B},
number = ,
volume = 74,
place = {United States},
year = {Tue Mar 21 00:00:00 EST 2006},
month = {Tue Mar 21 00:00:00 EST 2006}
}