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Sensor Electronics and Microsystem Technologies
Article . 2010 . Peer-reviewed
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IMPACT OF PROTON IRRADIATION ON THE PHYSICAL PROPERTIES OF Si-Ge WHISKERS N.

Authors: Pavlovska, N. T.; Litovchenko, P. G.; Druzhinin, A. A.; Ostrovskyy, I. P.; Khoverko, Yu. M.; Karpenko, A. Ya.; Tsmots, V. M.; +1 Authors

IMPACT OF PROTON IRRADIATION ON THE PHYSICAL PROPERTIES OF Si-Ge WHISKERS N.

Abstract

The impact of proton irradiation and high magnetic field on the electroconductivity and magnetoresistance of Si1-xGex (õ = 0,03) whiskers with resistance of ρ = 0,008–0,025 Ohm∙cm in the temperature range of 4,2–300 Ê.is studied. It is fount a decreasing of resistance of the crystals in the temperature range of 4,2–40 Ê upon radiation with low dose of protons and a significant increasing of resistance in the whole temperature range examined at the irradiation dose of 1∙1017 ð+/cm2 . The interpretation of the observed changes in the physical parameters of the whiskers is proposed. 

Изучено влияние протонного облучения и сильных магнитных полей на электропроводимость и магнитосопротивление нитевидных кристаллов (НК) Si1-xGex (х = 0,03) с удельным сопротивлением ρ = 0,008–0,025 Ом∙см в интервале температур 4,2– 300 К. Обнаружено уменьшение сопротивления кристаллов в температурной области 4,2– 40 К в процессе облучения малыми дозами протонов и существенное увеличение сопротивления во всей исследуемой температурной области при облучении дозой 1∙1017 р+/см2. Предложено интерпретацию обнаруженных изменений физических параметров нитевидных кристаллов.

Вивчено вплив протонного опромінення та сильних магнітних полів на електропровідність та магнітоопір ниткоподібних кристалів (НК) Si1-xGex (х = 0,03) з питомим опором ρ = 0,008–0,025 Ом∙см в інтервалі температур 4,2–300 К. Виявлено зменшення опору кристалів у температурній області 4,2–40 К в процесі опромінення малими дозами протонів та істотне збільшення опору у всій дослідженій температурній області при опроміненні дозою 1∙1017 р+/см2. Запропоновано інтерпретацію виявлених змін фізичних параметрів ниткоподібних кристалів.

Keywords

whiskers; silicon-germanium; proton irradiation; electroconductivity; magnetoresistance, ниткоподібні кристали; кремній-германій; протонне опромінення;, електропровідність; магнітоопір, нитевидные кристаллы; кремний-германий; протонное облучение; электропроводность; магнитосопротивление

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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