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Showing papers on "Antimonide published in 1980"


Journal ArticleDOI
TL;DR: In this article, the X-ray photoemission spectra (XPS) of cesium antimonide photosurfaces prepared in ultrahigh vacuum on Pyrex, Suprasil quartz and stainless steel substrates were measured.

20 citations


Journal ArticleDOI
R. Baptist1, M. Belakhovsky1, M.S.S. Brooks1, R. Pinchaux1, Y. Baer1, O. Vogt1 
TL;DR: In this paper, a very strong enhancement of uranium 5f photoemission was observed for hv = 98 eV. The authors interpreted this effect as an interference between the two excitation channels 5f + hv → eg and 5d + Hv → 5f giving rise to a Fano-type profile for the intensity of the U-5f line.
Abstract: Angular resolved photoemission on an in situ cleaved USb single crystal was undertaken using synchroton radiation from 20 to 130 eV. A good correspondence between the observed and calculated peaks is obtained. Very strong enhancement of uranium 5f photoemission is observed for hv = 98 eV. We interpret this effect as an interference between the two excitation channels 5f + hv → eg and 5d + hv → 5f giving rise to a Fano-type profile for the intensity of the U-5f line.

11 citations


Patent
21 Mar 1980
TL;DR: In this article, a substantially uniform layer of an alkali antimonide compound is formed on substantially all of the oxide secondary emissive surface of the primary electron discharge tube.
Abstract: An electron discharge tube comprises an evacuated envelope, a photocathode within the envelope and a primary dynode having an active portion substantially coplanar with the photocathode. The active portion of the dynode has an oxide secondary emitting surface. A substantially uniform layer of an alkali antimonide compound is formed on substantially all of the oxide secondary emissive surface of the dynode.

10 citations


Journal ArticleDOI
TL;DR: In this paper, the three new compounds crystallize orthorhombically, space group Cmcm with Na2AuAs: a = 887.1(2) pm, b = 712.9(3) pm and c = 576.0(5) pm.
Abstract: Abstract The three new compounds crystallize orthorhombically, space group Cmcm with Na2AuAs: a = 887.1(2) pm, b = 712.9(2) pm, c = 576.0(2) pm; Na2AuSb: a = 927.9(3) pm, b = 756.2(2) pm, c = 584.1(5) pm; K2AuSb: a = 1045.9(5) pm, b = 786.1(3) pm, c = 650.0(5) pm. The structure of Na2AuAs and Na2AuSb contains Au-As(Sb) zigzag chains in which the Au atoms are linearly bonded to the 5b-elements. The powderdiagram shows the phase K2AuSb to be isotypic to Na2AuAs and Na2AuSb.

9 citations


Journal ArticleDOI
01 Jan 1980-Vacuum
TL;DR: In this paper, it is shown that the optical reflectance gives information about several physical parameters of the photocathode under growth, such as the thickness and composition information of the S-type photocathodes.

6 citations


Journal ArticleDOI
TL;DR: In this paper, a semi-phenomenological theory is proposed which starts from the following ideas: a layered structure resulting from a strongly anisotropic exchange, the coexistence of magnetic and non-magnetic layers resulting from quadrupole interactions and nonbilinear exchange.
Abstract: The complicated phase diagram of CeSb reveals a conflict between competing forces. A semi-phenomenological theory is proposed which starts from the following ideas. (1) A layered structure resulting from a strongly anisotropic exchange. (2) The coexistence of magnetic and non-magnetic layers resulting from quadrupole interactions and non-bilinear exchange. (3) Interactions between non-magnetic layers including (a) oscillating interactions through conduction electrons, (b) repulsion through longitudinal strains, and (c) attraction through shear strain. The general features of the phase diagram can be understood from these assumptions but certain details can only be accounted for if a number of adjustable parameters are introduced.

3 citations


Patent
22 Aug 1980
TL;DR: In this paper, the authors proposed a method to produce a thin aluminum antimonide belt at high productivity by ejecting molten aluminum antimonyide through a nozzle to the surface of a cooling body and solidifying the ejecta by cooling.
Abstract: PURPOSE:To produce a thin aluminum antimonide belt at high productivity, by ejecting molten aluminum antimonide through a nozzle to the surface of a cooling body and solidifying the ejecta by cooling. CONSTITUTION:A melting furnace 2 is charged with a material for aluminum antimonide (AlSb). After evacuating a vacuum tank 1, and preferably, purging the whole vacuum tank with an inert gas, a valve 111 is shut. Then, a coil 24 is energized and the AlSb material is molten. After reaching a predetermined temperature, the whole furnace 2 is pushed down to a predetermined position, a valve 261 is opened, the furnace is pressurized with an inert gas, e.g., argon, from a vent 26 and the molten AlSb is ejected to the external periphery of a rotary cylinder roll 41 rotating in the direction of an arrow 'a' at a relative velocity of at least 1cm/sec with respect to a nozzle 21. The molten AlSb is cooled on the surface, forming a thin belt thereon. The thin belt is moved along a guide belt 13 in the direction of 'b' through a centrifugal force acted. Then, the long thin belt is collected in a collector 12.

1 citations