Temperature dependence of the NMR line shifts and T sub 1 relaxation times of sup 125 Te in the semiconductor alloys Hg sub 1 minus x Cd sub x Te

Journal Article · Thu Feb 07 04:00:00 EST 1991 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100156a071· OSTI ID:5235470

Vieth, H M ^[1]; Vega, S ^[2]; Yellin, N; Zamir, D ^[3]

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1. Freie Univ. Berlin (West Germany)
2. Weizmann Inst. of Science, Rehovot (Israel)
3. Soreq Nuclear Research Center, Yavne (Israel)

The {sup 125}Te NMR spectra of the semiconductor alloys Hg{sub 1{minus}x}Cd{sub x}Te are studied. The temperature dependence between 15 and 300 K of the frequency shifts and the T{sub 1} relaxation times of the five tellurium lines in the spectra of a set of Hg{sub 1{minus}x}Cd{sub x}Te polycrystalline samples with a large variety of x values are measured. In addition to those for samples prepared stoichiometrically, NMR results are recorded for samples containing an excess and a deficiency of metal atoms. The results are reported, and qualitative conclusions are made concerning the electronic interaction, chemical shift, and Knight shift contributions governing the NMR experimental parameters. This study demonstrates the ability of NMR spectroscopy to monitor and characterize the clusters Hg{sub 4{minus}n}Cd{sub n}Te with n = 0-4 in the alloys separately.

• OSTI ID: 5235470
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:3; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CADMIUM COMPOUNDS
CADMIUM TELLURIDES
CHALCOGENIDES
CHEMICAL SHIFT
DATA
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
MATERIALS
MERCURY COMPOUNDS
MERCURY TELLURIDES
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RESONANCE
SEMICONDUCTOR MATERIALS
STABLE ISOTOPES
TELLURIDES
TELLURIUM 125
TELLURIUM COMPOUNDS
TELLURIUM ISOTOPES
TEMPERATURE DEPENDENCE