ENHANCED MAGNETIC-MOMENT AND MAGNETIC-ORDERING IN MNNI AND MNCU SURFACE ALLOYS

被引：23

作者：

OBRIEN, WL ^{[1
]}

TONNER, BP ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MILWAUKEE,WI 53211

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358226

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two-dimensional, ordered surface alloys of MnCu and MnNi were grown on Cu(001) and Ni(001) substrates. These surface alloys, which have structures that are not present in the bulk phase diagram, are highly corrugated with a c(2×2) periodicity. The stability of these surfaces has been predicted theoretically to be due to a gain in magnetic energy of the Mn atoms. Using a combination of soft x-ray absorption spectroscopy and x-ray magnetic circular dichroism we find that Mn is in a high-spin state and is ferromagnetically ordered in the MnNi surface alloy. MnNi surface alloys have been grown with an easy axis of magnetization perpendicular to the surface.

引用

页码：6468 / 6470

页数：3

共 14 条

[1] 2P ABSORPTION-SPECTRA OF THE 3D ELEMENTS
FINK, J
MULLERHEINZERLING, T
SCHEERER, B
SPEIER, W
HILLEBRECHT, FU
FUGGLE, JC
ZAANEN, J
SAWATZKY, GA
[J]. PHYSICAL REVIEW B, 1985, 32 (08): : 4899 - 4904
[2] HANSEN RWC, IN PRESS NUCL INSTRU
[3] MAGNETIC-STRUCTURE OF FE/CR/FE TRILAYERS
IDZERDA, YU
TJENG, LH
LIN, HJ
GUTIERREZ, CJ
MEIGS, G
CHEN, CT
[J]. SURFACE SCIENCE, 1993, 287 : 741 - 746
[4] SURFACE-ENHANCED MAGNETIC-MOMENT AND FERROMAGNETIC ORDERING OF MN ULTRATHIN FILMS ON FCC CO(001)
OBRIEN, WL
TONNER, BP
[J]. PHYSICAL REVIEW B, 1994, 50 (05): : 2963 - 2969
[5] LOCAL MAGNETIC-PROPERTIES AND MAGNETIC-ORDERING OF THE 2-DIMENSIONAL SURFACE ALLOY C(2X2) MN/CU(001)
OBRIEN, WL
ZHANG, J
TONNER, BP
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (40) : L515 - L520
[6] TRANSITION TO THE PERPENDICULAR EASY-AXIS OF MAGNETIZATION IN NI ULTRATHIN FILMS FOUND BY X-RAY MAGNETIC CIRCULAR-DICHROISM
OBRIEN, WL
TONNER, BP
[J]. PHYSICAL REVIEW B, 1994, 49 (21): : 15370 - 15373
[7] OBRIEN WL, UNPUB PHYS REV B
[8] MAGNETIC STRUCTURES AND PHASE TRANSFORMATIONS IN MN-BASED CUAU-I TYPE ALLOYS
PAL, L
KREN, E
KADAR, G
SZABO, P
TARNOCZI, T
[J]. JOURNAL OF APPLIED PHYSICS, 1968, 39 (2P1) : 538 - &
[9] TOLE BT, 1985, PHYS REV B, V31, P6856
[10] STRONG MAGNETIC-X-RAY DICHROISM IN 2P ABSORPTION-SPECTRA OF 3D TRANSITION-METAL IONS
VANDERLAAN, G
THOLE, BT
[J]. PHYSICAL REVIEW B, 1991, 43 (16) : 13401 - 13411

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