Photoemission above the Fermi level: The top of the minority d band in nickel

被引：112

作者：

Greber, T

Kreutz, TJ

Osterwalder, J

机构：

[1] Physik-Institut, Universität Zürich-Irchel, Zürich, CH-8057

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.79.4465

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic phase transition in nickel metal has been studied with high resolution photoemission spectroscopy. A monochromatized high intensity He 1 alpha photon source provides access to the dispersion of thermally populated states up to Sk(B)T above the Fermi level. On Ni(lll) the coalescence of the partially occupied minority d band and the occupied majority d band is observed in raising the temperature above the Curie point. Close to a fast dispersing sp band anomalously high intensity from the minority d band is found. This is a clue that sp-d fluctuations at the Fermi level are a driving force in the magnetic phase transition.

引用

页码：4465 / 4468

页数：4

共 20 条

[1] K-space mapping of majority and minority bands on the Fermi surface of nickel below and above the Curie temperature [J].

Aebi, P ;

Kreutz, TJ ;

Osterwalder, J ;

Fasel, R ;

Schwaller, P ;

Schlapbach, L .

PHYSICAL REVIEW LETTERS, 1996, 76 (07) :1150-1153

[2] THEORY OF ITINERANT FERROMAGNETISM IN THE 3-D TRANSITION-METALS [J].

CAPELLMANN, H .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1979, 34 (01) :29-35

[3] SPIN-DEPENDENT ELECTRONIC-STRUCTURE AT MAGNETIC-SURFACES - THE LOW-MILLER-INDEX SURFACES OF NICKEL [J].

DONATH, M .

SURFACE SCIENCE REPORTS, 1994, 20 (5-6) :251-316

[4] FLUCTUATING LOCAL MAGNETIC-MOMENTS IN FERROMAGNETIC NI OBSERVED BY THE SPIN-RESOLVED RESONANT PHOTOEMISSION [J].

KAKIZAKI, A ;

FUJII, J ;

SHIMADA, K ;

KAMATA, A ;

ONO, K ;

PARK, KH ;

KINOSHITA, T ;

ISHII, T ;

FUKUTANI, H .

PHYSICAL REVIEW LETTERS, 1994, 72 (17) :2781-2784

[5] TEMPERATURE AND WAVE-VECTOR DEPENDENCE OF THE SPIN-SPLIT BAND-STRUCTURE OF NI(111) ALONG THE GAMMA-L LINE [J].

KAMPER, KP ;

SCHMITT, W ;

GUNTHERODT, G .

PHYSICAL REVIEW B, 1990, 42 (16) :10696-10705

[6] EVIDENCE FOR THE HIGH-SPIN TO LOW-SPIN STATE TRANSITION IN ORDERED FE3PT INVAR [J].

KISKER, E ;

WASSERMANN, EF ;

CARBONE, C .

PHYSICAL REVIEW LETTERS, 1987, 58 (17) :1784-1787

[7] TEMPERATURE-DEPENDENCE OF THE ANGLE-RESOLVED PHOTOEMISSION IN ITINERANT-ELECTRON FERROMAGNETS [J].

KORENMAN, V ;

PRANGE, RE .

PHYSICAL REVIEW LETTERS, 1980, 44 (19) :1291-1294

[8] LOCAL-BAND-THEORY ANALYSIS OF SPIN-POLARIZED, ANGLE-RESOLVED PHOTOEMISSION SPECTROSCOPY [J].

KORENMAN, V ;

PRANGE, RE .

PHYSICAL REVIEW LETTERS, 1984, 53 (02) :186-189

[9] PHOTOEMISSION WITH HIGH ANGULAR AND ENERGY RESOLUTION - TEMPERATURE-DEPENDENT EXCHANGE SPLITTING IN NICKEL [J].

KREUTZ, TJ ;

AEBI, P ;

OSTERWALDER, J .

SOLID STATE COMMUNICATIONS, 1995, 96 (06) :339-343

[10]

KREUTZ TJ, 1997, THESIS U ZURICH

← 1 2 →