Mn L3,2 X-ray absorption and magnetic circular dichroism inferromagnetic Ga1-xMnxP

Journal Article · Sat Mar 25 04:00:00 EST 2006 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2219713· OSTI ID:889804

Stone, P R; Scarpulla, M A; Farshchi, R; Sharp, I D; Haller, E E; Dubon, O D; Yu, K M; Beeman, J W; Arenholz, E; Denlinger, J D; Ohldag, H

We have measured the X-ray absorption and X-ray magnetic circular dichroism (XMCD) at the Mn L{sub 3,2} edges in ferromagnetic Ga{sub 1-x}Mn{sub x}P for 0.018 {le} x {le} 0.042. Large XMCD asymmetries at the L{sub 3} edge indicate significant spin-polarization of the density of states at the Fermi energy. The temperature dependence of the XMCD and moment per Mn of 2.67 {+-} 0.45 {mu}{sub B} calculated using sum rules are consistent with magnetometry values. The spectral shapes of the X-ray absorption and XMCD are nearly identical with those for Ga{sub 1-x}Mn{sub x}As indicating that the hybridization of Mn d and anion p states is similar in the two materials.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of Basic Energy Sciences. MaterialsSciences and Engineering Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 889804
• Report Number(s): LBNL--60048; BnR: KC0201030
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 1 Vol. 89; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
ANIONS
HYBRIDIZATION
MAGNETIC CIRCULAR DICHROISM
P STATES
SUM RULES
TEMPERATURE DEPENDENCE