Electron-exchange processes in the excitations of NiO(100) surface d states

被引：44

作者：

Fromme, B

Moller, M

Anschutz, T

Bethke, C

Kisker, E

机构：

[1] Institut für Angewandte Physik, Heinrich-Heine-Universität, Düsseldorf

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.77.1548

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron exchange processes in d-d transitions of the Ni2+-surface ions in NiO(100) had been examined by ''complete'' spin-polarized electron-energy-loss spectroscopy. Surface and bulk excitations show a completely different scattering geometry dependence, providing the possibility to distinguish between them. Besides the well-known 0.6 eV surface state, the loss structure at 2.1 eV excitation energy was identified as surface excitation. By use of the resonance primary energies, a new excitation at 1.3 eV was found, which was assigned to the B-3(1)-->(3)A(2) surface excitation.

引用

页码：1548 / 1551

页数：4

共 19 条

[1] STRUCTURAL REARRANGEMENT AND SURFACE MAGNETISM ON OXIDE SURFACES - A TEMPERATURE-DEPENDENT LOW-ENERGY-ELECTRON DIFFRACTION-ELECTRON ENERGY-LOSS SPECTROSCOPY STUDY OF CR2O3(111)/CR(110) [J].

BENDER, M ;

EHRLICH, D ;

YAKOVKIN, IN ;

ROHR, F ;

BAUMER, M ;

KUHLENBECK, H ;

FREUND, HJ ;

STAEMMLER, V .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (27) :5289-5301

[2]

COX PA, 1992, TRANSITION METAL OXI, P134

[3] ELECTRONIC SURFACE-STATES OF NIO (100) [J].

FREITAG, A ;

STAEMMLER, V ;

CAPPUS, D ;

VENTRICE, CA ;

SHAMERY, KA ;

KUHLENBECK, H ;

FREUND, HJ .

CHEMICAL PHYSICS LETTERS, 1993, 210 (1-3) :10-14

[4]

FREITAG A, COMMUNICATION

[5] SPIN-FLIP LOW-ENERGY-ELECTRON EXCHANGE SCATTERING IN NIO(100) [J].

FROMME, B ;

HYLLA, A ;

KOCH, C ;

KISKER, E ;

GORSCHLUTER, A ;

MERZ, H .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 148 (1-2) :181-182

[6] SPIN-FLIP LOW-ENERGY ELECTRON-EXCHANGE SCATTERING IN NIO(100) [J].

FROMME, B ;

SCHMITT, M ;

KISKER, E ;

GORSCHLUTER, A ;

MERZ, H .

PHYSICAL REVIEW B, 1994, 50 (03) :1874-1878

[7] RESONANT EXCHANGE SCATTERING IN DIPOLE-FORBIDDEN D-D EXCITATIONS IN NIO(100) [J].

FROMME, B ;

KOCH, C ;

DEUSSEN, R ;

KISKER, E .

PHYSICAL REVIEW LETTERS, 1995, 75 (04) :693-696

[8] VALENCE-BAND PHOTOEMISSION AND OPTICAL-ABSORPTION IN NICKEL COMPOUNDS [J].

FUJIMORI, A ;

MINAMI, F .

PHYSICAL REVIEW B, 1984, 30 (02) :957-971

[9] LOCALIZED D-D EXCITATIONS IN NIO(100) AND COO(100) [J].

GORSCHLUTER, A ;

MERZ, H .

PHYSICAL REVIEW B, 1994, 49 (24) :17293-17302

[10]

GORSCHLUTER A, 1993, INT C PHYSICS TRANSI, P341

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