Angular dependence of the resistive upper critical field of the iron-based superconductor Fe1+δ (Te,Se) in high magnetic fields

2013 ◽  
Vol 62 (12) ◽  
pp. 1997-2000
Author(s):  
Takanori Kida ◽  
Masayuki Hagiwara ◽  
Yoshikazu Mizuguchi ◽  
Yoshihiko Takano
Keyword(s):  
Magnetic Fields ◽  
Angular Dependence ◽  
Critical Field ◽  
Upper Critical Field ◽  
High Magnetic Fields ◽  
Iron Based

Resistive upper critical field ofTl2Ba2CuO6at low temperatures and high magnetic fields

1993 ◽  
Vol 71 (8) ◽  
pp. 1238-1241 ◽  
Author(s):  
A. P. Mackenzie ◽  
S. R. Julian ◽  
G. G. Lonzarich ◽  
A. Carrington ◽  
S. D. Hughes ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Critical Field ◽  
Low Temperatures ◽  
Upper Critical Field ◽  
High Magnetic Fields

scholarly journals Multiband effects on the upper critical field angular dependence of 122-family iron pnictide superconductors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
I. F. Llovo ◽  
C. Carballeira ◽  
D. Sóñora ◽  
A. Pereiro ◽  
J. J. Ponte ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Angular Dependence ◽  
Critical Field ◽  
Upper Critical Field ◽  
Single Band ◽  
Band Model ◽  
Cooper Pairs ◽  
Ginzburg Landau ◽  
Superconducting Fluctuations

AbstractDetailed measurements of the in-plane resistivity were performed in a high-quality Ba($$\hbox {Fe}_{1-x}\hbox {Co}_{{x}}$$ Fe 1 - x Co x )$$_2\hbox {As}_2$$ 2 As 2 ($$x=0.065$$ x = 0.065 ) single crystal, in magnetic fields up to 9 T and with different orientations $$\theta$$ θ relative to the crystal c axis. A significant $$\rho (T)_{H,\theta }$$ ρ ( T ) H , θ rounding is observed just above the superconducting critical temperature $$T_c$$ T c due to Cooper pairs created by superconducting fluctuations. These data are analyzed in terms of a generalization of the Aslamazov-Larkin approach, that extends its applicability to high reduced-temperatures and magnetic fields. This method allows us to carry out a criterion-independent determination of the angular dependence of the upper critical field, $$H_{c2}(\theta )$$ H c 2 ( θ ) . In spite of the relatively small anisotropy of this compound, it is found that $$H_{c2}(\theta )$$ H c 2 ( θ ) presents a significant deviation from the single-band 3D anisotropic Ginzburg-Landau (3D-aGL) approach, particularly for large $$\theta$$ θ (typically above $$\sim 60^o$$ ∼ 60 o ). These results are interpreted in terms of the multiband nature of these materials, in contrast with other proposals for similar $$H_{c2}(\theta )$$ H c 2 ( θ ) anomalies. Our results are also consistent with an effective anisotropy factor almost temperature independent near $$T_c$$ T c , a result that differs from the ones obtained by using a single-band model.

Irreversible magnetization and upper critical field of YBa2Cu3O7 single crystals in high magnetic fields

1989 ◽  
Vol 155 (1-3) ◽  
pp. 136-139 ◽  
Author(s):  
K. Kadowaki ◽  
L.W. Roeland ◽  
P.H. Kes ◽  
Li Jiang-Ning ◽  
A.A. Menovsky ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Single Crystals ◽  
Critical Field ◽  
Upper Critical Field ◽  
High Magnetic Fields ◽  
Irreversible Magnetization

On the angular dependence of the upper critical field in thin films

1966 ◽  
Vol 20 (2) ◽  
pp. 122-123 ◽  
Author(s):  
K. Yamafuji ◽  
T. Kawashima ◽  
F. Irie
Keyword(s):  
Thin Films ◽  
Angular Dependence ◽  
Critical Field ◽  
Upper Critical Field

Upper critical field of κ-(ET)2Cu[N(CN)2]Br under parallel magnetic fields

2001 ◽  
Vol 294-295 ◽  
pp. 427-430 ◽  
Author(s):  
Y. Shimojo ◽  
A.E. Kovalev ◽  
S. Kamiya ◽  
E. Ohmichi ◽  
T. Ishiguro ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Critical Field ◽  
Upper Critical Field ◽  
Parallel Magnetic Fields

Angular dependence ofJcfor YBCO coated conductors at low temperature and very high magnetic fields

2009 ◽  
Vol 23 (1) ◽  
pp. 014003 ◽  
Author(s):  
A Xu ◽  
J J Jaroszynski ◽  
F Kametani ◽  
Z Chen ◽  
D C Larbalestier ◽  
...  
Keyword(s):  
Low Temperature ◽  
Magnetic Fields ◽  
Angular Dependence ◽  
Coated Conductors ◽  
High Magnetic Fields ◽  
Ybco Coated Conductors ◽  
Very High
Sign in / Sign up

Export Citation Format

Share Document