| 000 | 03262nlm1a2200481 4500 | ||
|---|---|---|---|
| 001 | 664296 | ||
| 005 | 20231030041924.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35480 | ||
| 035 | _aRU\TPU\network\27302 | ||
| 090 | _a664296 | ||
| 100 | _a20210407a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aThe low-temperature specific heat of MWCNTs _fV. V. Sumarokov, A. Jeowski, D. Szewczyk [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 55 tit.] | ||
| 330 | _aThe specific heat of multi-walled carbon nanotubes (MWCNTs) with a low defectiveness and with a low content of inorganic impurities has been measured in the temperature range from 1.8 to 275 K by the thermal relaxation method. The elemental composition and morphology of the MWCNTs were determined using scanning electron microscopy analysis and energy dispersion x-ray spectroscopy. The MWCNTs were prepared by chemical catalytic vapor deposition and have mean diameters from 7 nm up to 18 nm and lengths in some tens of microns. MWCNTs purity is over 99.4 at.%. The mass of the samples ranged from 2-4 mg. It was found that the temperature dependence of the specific heat of the MWCNTs differs significantly from other carbon materials (graphene, bundles of SWCNTs, graphite, diamond) at low temperatures. The specific heat of MWCNTs systematically decreases with increasing diameter of the tubes at low temperatures. The character of the temperature dependence of the specific heat of the MWCNTs with different diameters demonstrates the manifestation of different dimensions from 1D to 3D, depending on the temperature regions. The crossover temperatures are about 6 and 40 K. In the vicinity of these temperatures, a hysteresis is observed. | ||
| 461 | _tLow Temperature Physics | ||
| 463 |
_tVol. 45, iss. 3 _v[P. 347-354] _d2018 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aнизкотемпературная теплоемкость | |
| 610 | 1 | _aуглеродные нанотрубки | |
| 610 | 1 | _aнизкие температуры | |
| 610 | 1 | _aгистерезис | |
| 610 | 1 | _aдефектность | |
| 610 | 1 | _aпримеси | |
| 701 | 1 |
_aSumarokov _bV. V. _gVladimir Victorovich |
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| 701 | 1 |
_aJeowski _bA. |
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| 701 | 1 |
_aSzewczyk _bD. _gDaria |
|
| 701 | 1 |
_aBagatskii _bM. I. _gMichail Ivanovich |
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| 701 | 1 |
_aPonomarev _bA. N. _gAleksandr Nikolaevich |
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| 701 | 1 |
_aKuznetsov _bV. V. _gVadim Vladimirovich |
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| 701 | 1 |
_aMoseenkov _bS. I. _gSergey Ivanovich |
|
| 701 | 1 |
_aBarabashko _bM. S. _cPhysicist _cResearcher of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1987- _gMaksim Sergeevich _2stltpush _3(RuTPU)RU\TPU\pers\38239 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20210407 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1063/1.5090094 | |
| 942 | _cCF | ||