| 000 | 03243nla2a2200445 4500 | ||
|---|---|---|---|
| 001 | 650409 | ||
| 005 | 20231030040945.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\15627 | ||
| 035 | _aRU\TPU\network\15622 | ||
| 090 | _a650409 | ||
| 100 | _a20161005a2016 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aGB | ||
| 105 | _ay z 100zy | ||
| 135 | _adrgn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aModelling of free positron states in TiHx _fO. N. Imas, I. Yu. Karataeva, K. B. Fedorov |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 14 tit.] | ||
| 330 | _aElectron energy structure, positron spectrum and positron characteristics of a-Ti and a-TiH[0.125] were calculated. Self-consistent calculations of the band structure were performed by the linear muffin-tin orbital method in the atomic sphere approximation. Modelling has been made on low content of hydrogen into a-Ti with expanded close-packed hexagonal cell inclusive 8 titanium atoms. Variation of sphere radiuses permitted to consider anisotropy and spherical symmetry of potential. Positron potential and positron wave function were calculated on a base of self-consistent electron density. Then positron probability of existence into TiHx lattice and lifetime were founded. Theoretical calculation indicated a satisfactory agreement of positron characteristics absolute values with the experimental data is achieved but the tendency of values with hydrogen defects increasing is not. The reason of divergence is discussed. On the basis of experimental data and theoretical calculations it was shown that different hydrogen atom states demonstrate the different influence in the lifetime spectra. | ||
| 461 | 0 |
_0(RuTPU)RU\TPU\network\2008 _tIOP Conference Series: Materials Science and Engineering |
|
| 463 | 0 |
_0(RuTPU)RU\TPU\network\15319 _tVol. 142 : Innovative Technologies in Engineering _oVII International Scientific Practical Conference, 19–21 May 2016, Yurga, Russian Federation _o[proceedings] _v[012044, 6 p.] _d2016 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aмоделирование | |
| 610 | 1 | _aпозитронные состояния | |
| 610 | 1 | _aпозитроны | |
| 610 | 1 | _aэнергетические структуры | |
| 610 | 1 | _aволновые функции | |
| 610 | 1 | _aэлектронная плотность | |
| 700 | 1 |
_aImas _bO. N. _cMathematician _cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences _f1967- _gOlga Nikolaevna _2stltpush _3(RuTPU)RU\TPU\pers\34948 |
|
| 701 | 1 |
_aKarataeva _bI. Yu. |
|
| 701 | 1 |
_aFedorov _bK. B. |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра высшей математики и математической физики (ВММФ) _h139 _2stltpush _3(RuTPU)RU\TPU\col\18727 |
| 801 | 2 |
_aRU _b63413507 _c20170120 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1088/1757-899X/142/1/012044 | |
| 856 | 4 | _uhttp://earchive.tpu.ru/handle/11683/34726 | |
| 942 | _cCF | ||