ANTIFERROMAGNETIC ORDERING OF FE/RU(0001)

被引：37

作者：

WU, R ^{[1
]}

FREEMAN, AJ ^{[1
]}

机构：

[1] ARGONNE NATL LAB,DEPT PHYS & ASTRON,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.44.4449

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural, electronic, and magnetic properties of the Fe/Ru(0001) system were determined by using the local-density total-energy full-potential linearized augmented-plane-wave energy-band method. Structurally, Fe atoms are found to occupy the hcp sites on the Ru(0001) substrate. Compared with the average of their bulk values, the nearest Fe-Ru distance contracts about 6% for the paramagnetic case but expands 1% for the ferromagnetic and the antiferromagnetic configurations, indicating the strong effect of magnetism and the lattice geometry. As the result of the strong overlayer-substrate hybridization, the Fe atoms, which are coupled ferromagnetically in the case of the corresponding free-standing Fe monolayer, favor antiferromagnetic coupling for Fe/Ru(0001). The predicted antiferromagnetic coupling appears to explain the observation by Liu and Bader that Fe overlayers on Ru(0001) are "magnetically dead" when the number of Fe layers is less than 2.

引用

页码：4449 / 4454

页数：6

共 31 条

[1] THICKNESS-DEPENDENT AND TEMPERATURE-DEPENDENT SPIN ANISOTROPY OF ULTRATHIN EPITAXIAL FE FILMS ON AG(100) [J].

ARAYAPOCHET, J ;

BALLENTINE, CA ;

ERSKINE, JL .

PHYSICAL REVIEW B, 1988, 38 (11) :7846-7849

[2] THIN-FILM MAGNETISM [J].

BADER, SD .

PROCEEDINGS OF THE IEEE, 1990, 78 (06) :909-922

[3] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[4] ENHANCED MAGNETORESISTANCE IN LAYERED MAGNETIC-STRUCTURES WITH ANTIFERROMAGNETIC INTERLAYER EXCHANGE [J].

BINASCH, G ;

GRUNBERG, P ;

SAURENBACH, F ;

ZINN, W .

PHYSICAL REVIEW B, 1989, 39 (07) :4828-4830

[5] MAGNETIC SURFACE-STATES ON FE(001) [J].

BROOKES, NB ;

CLARKE, A ;

JOHNSON, PD ;

WEINERT, M .

PHYSICAL REVIEW B, 1990, 41 (04) :2643-2645

[6] SPECIAL POINTS IN 2-DIMENSIONAL BRILLOUIN ZONE [J].

CUNNINGHAM, SL .

PHYSICAL REVIEW B, 1974, 10 (12) :4988-4994

[7] SURFACE, INTERFACE, AND THIN-FILM MAGNETISM [J].

FALICOV, LM ;

PIERCE, DT ;

BADER, SD ;

GRONSKY, R ;

HATHAWAY, KB ;

HOPSTER, HJ ;

LAMBETH, DN ;

PARKIN, SSP ;

PRINZ, G ;

SALAMON, M ;

SCHULLER, IK ;

VICTORA, RH .

JOURNAL OF MATERIALS RESEARCH, 1990, 5 (06) :1299-1340

[8] HYPERFINE FIELDS AT SURFACES AND INTERFACES [J].

FREEMAN, AJ ;

FU, CL ;

WEINERT, M ;

OHNISHI, S .

HYPERFINE INTERACTIONS, 1987, 33 (1-4) :53-68

[9]

FREEMAN AJ, 1986, POLARIZED ELECTRONS

[10]

Freeman AJ, 1964, MAGNETISM A, V2A, P167

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