[en] Beta spectra have been measured and total β-decay energies have been deduced for strongly neutron-rich indium isotopes. Mass separated sources were produced at the OSIRIS on-line separator at Studsvik. By applying β-γ coincidence methods, Qsub(β)-values were determined for isomers of ^120-129In. For these nuclei, the atomic mass excess could be derived, allowing the comparison of masses of neutron-rich unstable nuclei with predictions from mass formulae. The mean uncertainty of the experimental mass excesses is 0.12 MeV. The precision of the mass formulae chosen for the comparison varies widely with the mean deviation ranging from 0.12 to 1.39 MeV. (Auth.)

[en] A dual wavelength spectrophotometric method is applied to analyze micro amounts of indium (III) in radioactive ¹¹¹InCl₃ solution produced by an accelerator. Indium with phenyfluorone (PF) forms stable complex in the presence of cetylpyridium bromide (CPB) at pH6.5. The maximum absorption of the complex is the absolute amplitude between peaks measured at wavelength of 568 nm and 520 nm. The molar absorptivity is 2.6 x 10⁴ m²/mol. Beer's law is obeyed for indium in the range of 0-0.4 mg/L. The mole ratio of indium, n(In):n(PF):n(CPB)=1:2:2. The relative standard deviation is less than 5% and In(III) recovery is 96%-108%. (authors)

[en] The results of recent studies of the Gamow-Teller β-decays of nuclei in the ¹⁰⁰Sn region are presented. Measurements performed with the use of the total absorption γ-ray spectrometer and the Cluster Cube array of germanium detectors revealed qualitatively new information on the Gamow-Teller strength distribution in the decays of ⁹⁷Ag and ^103endash107In. The shape of the measured β-strength distribution and the resulting total B_GT values are compared with the results of shell-model calculations. copyright 1998 American Institute of Physics

[en] Cross-sectional scanning tunneling microscopy (STM) has been used to characterize compositional structures in InAs_0.87Sb_0.13/InAs_0.73P_0.27 and InAs_0.83Sb_0.17/InAs_0.60P_0.40 strained-layer superlattice structures grown by metal-organic chemical vapor deposition. High-resolution STM images of the (110) cross section reveal compositional features within both the InAs_xSb_1-x and InAs_yP_1-y alloy layers oriented along the [bar 112] and [1 bar 12] directions the same as those in which features would be observed for CuPt - B type ordered alloys. Typically one variant dominates in a given area, although occasionally the coexistence of both variants is observed. Furthermore, such features in the alloy layers appear to be correlated across heterojunction interfaces in a manner that provides support for III - V alloy ordering models which suggest that compositional order can arise from strain-induced order near the surface of an epitaxially growing crystal. Finally, atomically resolved (1 bar 10) images obtained from the InAs_0.87Sb_0.13/InAs_0.73P_0.27 sample reveal compositional features in the [112] and [bar 1 bar 12] directions, i.e., those in which features would be observed for CuPt - A type ordering. copyright 1999 American Vacuum Society

[en] The neutral complexes In₂X₄.2L (X=Cl, Br, I; L 1,4-dioxan, tetrahydropyran, tetrahydrofuran, tetrahydrothiophene), In₂X₄.2L (X=Br, I; Ldimethylsulphide), In₂X₄.4L (X=Cl, Br, I; Lpiperidine, piperazine, morpholine), and In₂X₄.4L (X=Br, I; L=pyridine, dimethylsulphoxide) have been prepared. Solid state Raman spectra indicate that the compounds contain indium-indium bonds

No abstract available

[en] Results of indium phosphide structures research, showing the possibility of using in the near infrared range photocathodes of InP/InGaAs, are represented. An optimal method of obtaining the atomically clean indium phosphide surface was suggested. The spectral characteristics of InP/InGaAs heterostructure were given. The results of an experimental study of pin-diode, which was used as the receiver of photoelectrons, are presented. (paper)

[en] The β⁺-spectra of the neutron deficient indium nuclei, with mass number from 108 down to 103, have been measured using a solid state beta detector. The activities, produced in heavy ion reactions, have been separated. The nuclear masses have been determined from the endpoint energies. The mass of ¹⁰³In shows a marked deviation from the value predicted by systematics. (orig.)

No abstract available

[en] The decay properties of ⁹⁰Rb, ¹⁰²,¹⁰³,¹⁰⁴,¹⁰⁶In and ¹²⁰,¹²²,¹²⁴In nuclei were investigated using γ,β,βγ and conversion electron spectroscopic methods. The sources were produced from internal bombardment and from the on-line mass spectrometer facility using the external beam of the McGill synchrocyclotron. Modifications to the mass spectrometer for converting it into an isotope separator are described. Separate decay schemes for the following isomers are proposed. sup (90g)Rb (T1/2 = 2.70 +-0.05 min, J sup(π) = (1^-)), sup (90m)Rb (T1/2 = 4.30 +- 0.07 min, J sup(π) = (4^-)), ¹⁰²In (T1/2 = 42 +- 8 sec), ¹⁰³In (T1/2 = 59+- 10 sec), ¹⁰⁴In (T1/2 = 1.8 +- 0.2 min), sup (106g)In (T1/2 = 6.2 +- 0.1 min, J sup(π) = (6⁺, 7⁺)), sup (106m)In (T1/2 = 5.2 +- 0.1 min, J sup(π) = (3^+-)) ¹²⁰In (T1/2 = 46.2 +- 0.8 sec. J sup(π) = (3⁺, 4⁺, 5⁺), T1/2 = 47.3 +- 0.5 sec, J sup(π) = (8^-)), ¹²²In (T1/2 = 10.3 +- 0.6 sec, J sup(π) = (3⁺, 4⁺, 5⁺), T1/2 = 10.8 +- 0.4 sec, J sup(π) = (8^-)), and ¹²⁴ In (T1/2 = 3.9 +- 0.3 sec, J sup(π) = (8^-)). The resultant level structure of the daughter nuclei are compared to a theoretical calculation based on the BCS formalism with the Tabakin residual interaction using an inert core of Z=28, N=50. (auth)