<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>-Induced Damage in Superconducting Nb-Ge Films

Poate, J. M.; Testardi, L. R.; Storm, A. R.; Augustyniak, W.

doi:10.1103/physrevlett.35.1290

Cited by 99 publications

(26 citation statements)

References 13 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Accordingly, weak localization seems to be the physical origin of the Mooij rule in disordered metals. One should note that this observation agrees with the superconducting behavior of disordered system, when the electrons are weakly localized [14][15][16][17].…”

Section: Explanation Of the Mooij Rulesupporting

confidence: 84%

“…Then it becomes negative for resistivities above 150 mW cm. We stress that this behavior is consistent with the above superconducting properties: correlation of T c and the residual resistivity [11][12][13], universal correlation of T c and the resistance ratio [14][15][16], and loss of the thermal electrical resistivity [17] with decreasing T c .…”

Section: Introductionsupporting

confidence: 86%

“…When this happens we may say that the electron-phonon interaction is the origin of the pairing in the superconductors. This behavior was already confirmed in A15 superconductors [14][15][16][17] and Ternary superconductors [79]. Recently, it has been shown that MgB 2 also shows the same behavior, implying that MgB 2 is a BCS superconductor [5,28].…”

Section: Discussionsupporting

confidence: 66%

“…In fact, there are overwhelming numbers of experiments which support this idea [4]. For instance, tunneling [6][7][8], specific heat [9], X-ray photoemission spectroscopy (XPS) [10], correlation of T c and the residual resistivity [11][12][13], universal correlation of T c and the resistance ratio [14][15][16], and loss of the thermal electrical resistivity [17] with decreasing T c clearly show a decrease of the electron-phonon interaction accompanying the decrease of T c with disorder. It is then anticipated that the electron-phonon interaction in the normal state of metals will also be influenced strongly by weak localization.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Weak localization and the Mooij rule in disordered metals

Park

Savran

Kim

2003

Physica Status Solidi (b)

View full text Add to dashboard Cite

Weak localization leads to the same correction to both the conductivity and the McMillan's electron-phonon coupling constant λ (and λtr, transport electron-phonon coupling constant). Consequently the temperature dependence of the thermal electrical resistivity is decreasing as the conductivity is decreasing due to weak localization, which results in the decrease of the temperature coefficient of resistivity (TCR) with increasing the residual resistivity. When λ and λtr are approaching zero, only the residual resistivity part remains and it gives rise to the negative TCR. Accordingly, the Mooij rule is a manifestation of weak localization correction to the conductivity and the electron-phonon interaction. This understanding provides a new means of probing the phonon-mechanism in exotic superconductors and an opportunity of fabricating new novel devices

show abstract

Section: Explanation Of the Mooij Rulesupporting

confidence: 84%

Section: Introductionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Weak localization and the Mooij rule in disordered metals

Park

Savran

Kim

2003

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…Since Poate et al 23 had seen a correlation between resistance ratio and Tc for superconducting films, a similar relationship was sought in the NbGe2 films. A plot of Tc v. F20K is shown in Fig.…”

Section: Superconductivity In Nbge2mentioning

confidence: 99%

Superconductivity in NbGe2 and isostructural C-40 compounds

Knoedler

Douglass

1979

J Low Temp Phys

View full text Add to dashboard Cite

The superconductivity of NbGe2 and isostructural C-40 compounds has been studied in a quantitative manner. The high transition temperatures (To = 16 K) exhibited by sputtered films of NbGe2 are shown to be an intrinsic property of the compound and are attributed to the degree of order produced during the formation process. The roles of excess germanium and thermal effects are also discussed for NbGe2. One of the major conclusions established in this study is that a new crystal structure type, namely the hexagonal C-40 system, is superconducting. Four binary compounds are shown to exhibit superconductivity; they are NbGe2 (To = 16K), NbSi2 (To = 2.9K), TaSi2 (Tc = 4.4 K), and TaGe2 (T~ = 2.7K). Even though superconductivity has been demonstrated on these compounds, the mechanism responsible for the superconductivity has not been established.

show abstract

On the influence of irradiation type on the formation of radiation defects in Nb-based superconductors with A-15 structure

Chudinov

Moseev

Goshchitskii

et al. 1979

Phys. Stat. Sol. (a)

View full text Add to dashboard Cite

On the basis of the radiation thermal approach, developed earlier by the authors, it is shown by calculation that the character of the defect formation in Nb‐based superconductors with A‐15 structure differs according to whether they are irradiated by fast neutrons or by high‐energy oxygen ions and by α‐particles. In the first case the “antistructural” defects should appear in the main, while in the second case and in the third the formation of the “antistructural” defects is less probable and point defects, vacancies and interstitial atoms, should appear. It is probable that this difference causes the different saturations of degradation of the superconducting transition temperature. The results of X‐ray and neutronographic studies are analysed and they quantitatively agree with the calculated results.

show abstract

He4-Induced Damage in Superconducting Nb-Ge Films

Cited by 99 publications

References 13 publications

Weak localization and the Mooij rule in disordered metals

Weak localization and the Mooij rule in disordered metals

Superconductivity in NbGe2 and isostructural C-40 compounds

On the influence of irradiation type on the formation of radiation defects in Nb-based superconductors with A-15 structure

Contact Info

Product

Resources

About