Correlation between the Hall Resistance and Magnetoresistance in the Mixed State of an Nd2 − xCexCuO4 + δ Electronic Superconductor
- 作者: Charikova T.1,2, Shelushinina N.1, Petukhov D.1, Kharus G.1, Petukhova O.1, Ivanov A.3
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隶属关系:
- Mikheev Institute of Metal Physics, Ural Branch
- Ural Federal University
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- 期: 卷 118, 编号 12 (2017)
- 页面: 1184-1191
- 栏目: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/166894
- DOI: https://doi.org/10.1134/S0031918X17120031
- ID: 166894
如何引用文章
详细
The Hall resistance and the magnetoresistance in the mixed state of the Nd2 − xCexCuO4 + δ quasi-two-dimensional system near the antiferromagnetic-superconductor (AF-SC) phase transition have been measured at doping levels x = 0.14 and 0.15, and a correlation has been established. This correlation can be analyzed using the following power relationship: ρxy(B) ~ [ρxx (B)]β. It was found that index β varied from 0.94 ± 0.03 in the region of AF and SC coexistence (x = 0.14) to 0.6 ± 0.1 in the SC region with the maximum critical temperature (x = 0.15) at low temperatures and weak magnetic fields. This reduction suggests that the symmetry of carrier pairing changes at the boundary of the transition from the phase of antiferromagnetic ordering and spin density waves to the superconducting phase in the presence of antiferromagnetic spin fluctuations.
作者简介
T. Charikova
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
编辑信件的主要联系方式.
Email: charikova@imp.uran.ru
俄罗斯联邦, ul. S. Kovalevskoi 18, Ekaterinburg, 620137; ul. Mira 19, Ekaterinburg, 620002
N. Shelushinina
Mikheev Institute of Metal Physics, Ural Branch
Email: charikova@imp.uran.ru
俄罗斯联邦, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
D. Petukhov
Mikheev Institute of Metal Physics, Ural Branch
Email: charikova@imp.uran.ru
俄罗斯联邦, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
G. Kharus
Mikheev Institute of Metal Physics, Ural Branch
Email: charikova@imp.uran.ru
俄罗斯联邦, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
O. Petukhova
Mikheev Institute of Metal Physics, Ural Branch
Email: charikova@imp.uran.ru
俄罗斯联邦, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
A. Ivanov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: charikova@imp.uran.ru
俄罗斯联邦, Kashirskoe sh. 31, Moscow, 115409