电邮这篇文章 TUNNELING SPECTROSCOPY OF BaFe2−хNiхAs2 WITH VARIATION OF DOPING DEGREE IN SUPERCONDUCTING AND NORMAL STATES
- 作者: Nikitchenkov I.A.1,2, Kuz'michev S.A.1,2, Il'ina A.D.2, Pervakov K.S.2, Vlasenko V.A.2, Kuz'micheva T.E.2
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隶属关系:
- Lomonosov Moscow State University, Faculty of Physics
- Lebedev Physical Institute of the Russian Academy of Sciences
- 期: 卷 166, 编号 6 (2024)
- 页面: 834-845
- 栏目: ORDER, DISORDER AND PHASE TRANSITIONS IN CONDENSED MATTER
- URL: https://journal-vniispk.ru/0044-4510/article/view/274798
- DOI: https://doi.org/10.31857/S0044451024120071
- ID: 274798
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详细
Single crystals of pnictides BaFe2−хNiхAs2 with underdoped composition (x = 0.08) and overdoped compositions (x = 0.12, 0.14) were studied by tunneling spectroscopy in superconducting and normal states. The obtained I(V)- and dI(V)/dV characteristics of tunnel contacts reproducibly showed nonlinearity both below and above the critical temperature Tc, not directly related to superconducting properties. Its evolution with temperature and Tc along the doping phase diagram was studied, and possible causes of this nonlinearity existence are discussed.
作者简介
I. Nikitchenkov
Lomonosov Moscow State University, Faculty of Physics; Lebedev Physical Institute of the Russian Academy of Sciences
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119991
S. Kuz'michev
Lomonosov Moscow State University, Faculty of Physics; Lebedev Physical Institute of the Russian Academy of Sciences
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119991
A. Il'ina
Lebedev Physical Institute of the Russian Academy of Sciences
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991
K. Pervakov
Lebedev Physical Institute of the Russian Academy of Sciences
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991
V. Vlasenko
Lebedev Physical Institute of the Russian Academy of Sciences
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991
T. Kuz'micheva
Lebedev Physical Institute of the Russian Academy of Sciences
编辑信件的主要联系方式.
Email: kuzmichev@mig.phys.msu.ru
俄罗斯联邦, Moscow, 119991
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