• Aucun résultat trouvé

ELECTRON SPIN RESONANCE IN FINE PARTICLES OF METALLIC LITHIUM

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "ELECTRON SPIN RESONANCE IN FINE PARTICLES OF METALLIC LITHIUM"

Copied!
2
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

HAL Id: jpa-00217054

https://hal.archives-ouvertes.fr/jpa-00217054

Submitted on 1 Jan 1977

HAL is a multi-disciplinary open access

archive for the deposit and dissemination of

sci-entific research documents, whether they are

pub-lished or not. The documents may come from

teaching and research institutions in France or

abroad, or from public or private research centers.

L’archive ouverte pluridisciplinaire HAL, est

destinée au dépôt et à la diffusion de documents

scientifiques de niveau recherche, publiés ou non,

émanant des établissements d’enseignement et de

recherche français ou étrangers, des laboratoires

publics ou privés.

ELECTRON SPIN RESONANCE IN FINE

PARTICLES OF METALLIC LITHIUM

T. Fujita, K. Saiki, Y. Shimizu

To cite this version:

(2)

JOURNAL DE PHYSIQUE Colloque C2, suppliment au no 7, Tome 38, Juillet 1977, page C2-77

ELECTRON SPIN RESONANCE IN

FINE PARTICLES

OF METALLIC LITHIUM

T.

FUJITA,

K. SAIKI

(*) and

Y. SHIMIZU

(**) Department of Physics, Nagoya University, Nagoya, 464, Japan

Abstract.

-

The relaxation of conduction electron spins in fine particles of metallic lithium was measured by an X-band spectrometer at room temperature. Those particles of diameter from about 3 000 to 100 A were prepared by evaporation method in an inert gas atmosphere. The line of the electron spin resonance broadened from 2.7 to 9.2 Oe as the average particle diameter was reduced from 3 000 to 1 000

A.

As the particle diameter was further reduced, the line narrowed again remarkably. The narrowest line width obtained was 1.9 Oe for particles of diameter 100 A. The effect of line broadening is explained by the limitation of electron spin life time by the spin reverse scattering at the surface of the particles. The narrowing of line at smaller particle region is considered to the quenching of spin reverse scattering by the quantization of electronic energy levels in fine particles.

(*) Present address : Ishikawajima-Harima Heavy Industries Co., Ltd. Ootemachi Chiyoda-ku Tokyo, 100, Japan.

(**) Present address : Kinjo Gakuin, Nagoya, Japan.

Références

Télécharger maintenant ( PDF - 2 Page - 193.51 KB )

Documents relatifs

ON THE STATISTICAL PROPERTIES OF THE ELECTRONIC LEVELS OF SMALL METALLIC PARTICLES

elements of this potential between the original wave functions 4, are then infinite. Therefore, a matrix formulation of the Dirichlet problem with a perturb- ed boundary is

SMALL PARTICLES-ELECTRONIC PROPERTIES IDISCRETENESS OF ENERGY LEVELS IN SMALL METALLIC PARTICLES

In the presence of a weak magnetic field satisfying the condition, p~ H 4 8, namely that the electronic Zeeman energy is much smaller than the average spacing, the

CONDUCTION ELECTRON SPIN RESONANCE IN SMALL PARTICLES SUSPENDED IN SOLID MATRIX

If we make the assumption that the sample is composed of particles with an equal probability of having an even or odd number conduction electrons, then from a

RAMAN SCATTERING IN RESONANCE WITH THE ABSORPTION BAND OF THE F CENTRE IN ALKALI HALIDES : BREAKDOWN OF THE SCATTERING SELECTION RULES DUE OF THE SPIN ORBIT INTERACTION

In the present paper, however, in order to show clearly the breakdown of the usual selection rules and to illustrate the importance of electronic structure in determining the

EXCITED STATE ELECTRON SPIN RESONANCE USING NON-RESONANT FLUORESCENCE LINE NARROWING

The width of the FLN spectrum of fluorescence to the upper level is broader than that to the lower level, and this additional width of 90MHz is the resonance width of the

Motional narrowing of the nuclear magnetic resonance line by the sliding of spin-density waves

Motional narrowing of the nuclear magnetic resonance line by the sliding of spin-density

Erratum : Damping of the spin wave resonance by dislocations.

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

CONDUCTION ELECTRON SPIN RESONANCE OF LITHIUM AMMONIA SOLUTIONS IN THE RANGE OF THE METAL TO NON METAL TRANSITION

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des