Magnetic linear dichroism in angular-resolved Fe 3p and Fe 2p core-level photoemission for thin Fe films on graphite

被引：10

作者：

Baker, SH ^{[1
]}

Edmonds, KW ^{[1
]}

Keen, AM ^{[1
]}

Thornton, SC ^{[1
]}

Norris, C ^{[1
]}

Binns, C ^{[1
]}

机构：

[1] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.61.5026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic linear dichroism in angle-resolved Fe 3p and Fe 2p core-level photoemission is used as a probe of the surface magnetism for thin Fe films with a range of surface morphologies. The Fe films were prepared by deposition in ultrahigh vacuum on to graphite substrates. Samples studied include an islanded him (mean diameter 100 nm), an array of "wires" (50-100-nm diameter) and a 150-nm-thick continuous film. The effect on the dichroism asymmetry of varying the magnitude of the magnetizing field, the film temperature and morphology is described. The data show an increased magnetic hardness and reduced magnetic transition temperature with decreasing dimension of the Fe features. A magnetic transition temperature of 720 It is measured for the islanded film while the continuous film shows essentially bulklike behavior. The development of magnetization in the films with increasing coverage is also studied. The results of fitting Zeeman-like multiplets to both Fe 3p and Fe 2p spectra are described.

引用

页码：5026 / 5032

页数：7

共 31 条

[1] SPIN-POLARIZED AUGER-ELECTRON SPECTROSCOPY [J].

ALLENSPACH, R ;

MAURI, D ;

TABORELLI, M ;

LANDOLT, M .

PHYSICAL REVIEW B, 1987, 35 (10) :4801-4809

[2] MAGNETIC HYSTERESIS LOOP OF ONE MONOLAYER OF CO ON CU(100) [J].

BEIER, T ;

JAHRREISS, H ;

PESCIA, D ;

WOIKE, T ;

GUDAT, W .

PHYSICAL REVIEW LETTERS, 1988, 61 (16) :1875-1877

[3] Morphology of islanded transition-metal films on graphite studied by extreme-UV reflectivity [J].

Binns, C ;

Baker, SH ;

Keen, AM ;

Mozley, SN ;

Norris, C ;

Derbyshire, HS ;

Bayliss, SC .

PHYSICAL REVIEW B, 1996, 53 (11) :7451-7459

[4] SPIN-RESOLVED PHOTOELECTRON ENERGY-DISTRIBUTIONS FROM THE FE 3P CORE LEVELS [J].

CARBONE, C ;

KISKER, E .

SOLID STATE COMMUNICATIONS, 1988, 65 (10) :1107-1110

[5] X-RAY CIRCULAR-DICHROISM AND LOCAL MAGNETIC-FIELDS [J].

CARRA, P ;

THOLE, BT ;

ALTARELLI, M ;

WANG, XD .

PHYSICAL REVIEW LETTERS, 1993, 70 (05) :694-697

[6] SOFT-X-RAY MAGNETIC CIRCULAR-DICHROISM AT THE L2,3 EDGES OF NICKEL [J].

CHEN, CT ;

SETTE, F ;

MA, Y ;

MODESTI, S .

PHYSICAL REVIEW B, 1990, 42 (11) :7262-7265

[7] EXPERIMENTAL CONFIRMATION OF THE X-RAY MAGNETIC CIRCULAR-DICHROISM SUM-RULES FOR IRON AND COBALT [J].

CHEN, CT ;

IDZERDA, YU ;

LIN, HJ ;

SMITH, NV ;

MEIGS, G ;

CHABAN, E ;

HO, GH ;

PELLEGRIN, E ;

SETTE, F .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :152-155

[8] OPTICAL-ACTIVITY OF POLARIZED ATOMS [J].

CHEREPKOV, NA ;

KUZNETSOV, VV .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (14) :L405-L409

[9] MAGNETIC PHASE-TRANSITION IN TWO-DIMENSIONAL ULTRATHIN FE FILMS ON AU(100) [J].

DURR, W ;

TABORELLI, M ;

PAUL, O ;

GERMAR, R ;

GUDAT, W ;

PESCIA, D ;

LANDOLT, M .

PHYSICAL REVIEW LETTERS, 1989, 62 (02) :206-209

[10] POLARIZATION DEPENDENCE OF THE 2P-CORE-LEVEL PHOTOEMISSION SPECTRA OF FE [J].

EBERT, H ;

BAUMGARTEN, L ;

SCHNEIDER, CM ;

KIRSCHNER, J .

PHYSICAL REVIEW B, 1991, 44 (09) :4406-4409

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