Investigations on temperature dependences of parameters of ¹²⁷I NQR spectrum of (BiI₃)(₁₋ₓ)(PbI₂)ₓ mixed layered semiconductor and alkaline halogens crystals
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Investigations on temperature dependences of parameters of ¹²⁷I NQR spectrum of (BiI₃)(₁₋ₓ)(PbI₂)ₓ mixed layered semiconductor and alkaline halogens crystals
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| Creator |
Vertegel, I.G.
Chesnokov, E.D. Ovcharenko, O.I. Vertegel, I.I. Ivanov, O.S. Gnatenko, Yu.P. Ponkratenko, O.A. |
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| Subject |
Characterization and properties
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| Description |
Results of investigations of the temperature dependence of NQR frequencies in the temperature range of 4.2-150 K for ¹²⁷I and ⁷⁹Br of the (BiI₃)(₁₋ₓ)(PbI₂)ₓ mixed layered semiconductor and the crystals of alkaline halogens are presented. The abnormally large absolute values of temperature coefficients of the NQR frequency for (BiI₃)(₁₋ₓ)(PbI₂)ₓ have been detected. It can be explained by influence of the point charges and interlayer fluctuations. It is concluded that the quasi-two-dimensional nature of the vibration states at PbI₂ contents of x ≤0.08 is persistent. The value of the orientation and translational vibrations frequency of the halogen ions assuming the correctness of the two-frequency model Bayer-Kushida has been calculated.
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| Date |
2018-06-16T16:11:49Z
2018-06-16T16:11:49Z 2017 |
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| Type |
Article
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| Identifier |
Investigations on temperature dependences of parameters of ¹²⁷I NQR spectrum of (BiI₃)(₁₋ₓ)(PbI₂)ₓ mixed layered semiconductor and alkaline halogens crystals / I.G. Vertegel, E.D. Chesnokov, O.I. Ovcharenko, I.I. Vertegel, O.S. Ivanov, Yu.P. Gnatenko, O.A. Ponkratenko // Functional Materials. — 2017. — Т. 24, № 3. — С. 360-364. — Бібліогр.: 15 назв. — англ.
1027-5495 DOI: https://doi.org/10.15407/fm24.03.360 http://dspace.nbuv.gov.ua/handle/123456789/136785 |
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| Language |
en
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| Relation |
Functional Materials
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| Publisher |
НТК «Інститут монокристалів» НАН України
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