Temperature dependence of upper critical fields and coherence lengths for optimally-doped YBa2Cu3O7-δ thin films

被引：6

作者：

Petrenko, E. V. ^{[1
]}

Omelchenko, L. V. ^{[1
]}

Terekhov, A. V. ^{[1
]}

Kolesnichenko, Yu. A. ^{[1
]}

Rogacki, K. ^{[2
]}

Sergeyev, D. M. ^{[3
]}

Solovjov, A. L. ^{[1
,2
,4
]}

机构：

[1] Natl Acad Sci Ukraine Kharkiv, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkiv, Ukraine

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[3] K Zhubanov Aktobe Reg State Univ, Aktobe 030000, Kazakhstan

[4] Kharkov Natl Univ, Fac Phys, Kharkiv, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 2022年 / 48卷 / 10期

关键词：

high-temperature superconductors; YBCO films; upper critical field; magnetic field; coherence length; FLUCTUATION CONDUCTIVITY; TRANSITION-TEMPERATURE; PSEUDOGAP STATE; T-C; SUPERCONDUCTORS; PHASE; BCS;

D O I：

10.1063/10.0014015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the comprehensive comparative analysis of the upper critical magnetic fields mu H-c(2)(0) obtained within Ginzburg-Landau (GL) and Werthamer-Helfand-Hohenberg (WHH) theories for optimally-doped YBa2Cu3O7-delta thin films. For different orientations of the magnetic field, our calculations give 638 and 153 T for mu H-c(2)(0), H || ab and mu H-c(2)(0), H || c, respectively, when using H-c(2)(0). For the first time, the temperature dependences of coherence lengths xi(ab)(T) and xi(c)(T) within proposed theories were determined using 50 and 90% criteria of the normal state resistivity value rho(N). The GL (0.9 rho(N)) approach gives xi(ab)(0) = 11.8 & ANGS; and xi(c)(0) = 3.0 & ANGS; which are in a good agreement with literature data. The implications of very short coherence lengths in HTSCs are discussed.

引用

页码：755 / 762

页数：8

共 50 条

[1] Temperature-dependent pinning of vortices in low-angle grain boundaries in YBa2Cu3O7-δ -: art. no. 054508 [J].

Albrecht, J .

PHYSICAL REVIEW B, 2003, 68 (05)

[2]

ANDREEV AF, 1964, SOV PHYS JETP-USSR, V19, P1228

[3]

[Anonymous], 1950, Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki

[4] Change of carrier density at the pseudogap critical point of a cuprate superconductor [J].

Badoux, S. ;

Tabis, W. ;

Laliberte, F. ;

Grissonnanche, G. ;

Vignolle, B. ;

Vignolles, D. ;

Beard, J. ;

Bonn, D. A. ;

Hardy, W. N. ;

Liang, R. ;

Doiron-Leyraud, N. ;

Taillefer, Louis ;

Proust, Cyril .

NATURE, 2016, 531 (7593) :210-+

[5] Competing pairing interactions responsible for the large upper critical field in a stoichiometric iron-based superconductor CaKFe4As4 [J].

Bristow, Matthew ;

Knafo, William ;

Reiss, Pascal ;

Meier, William ;

Canfield, Paul C. ;

Blundell, Stephen J. ;

Coldea, Amalia, I .

PHYSICAL REVIEW B, 2020, 101 (13)

[6] Electron pairing without superconductivity [J].

Cheng, Guanglei ;

Tomczyk, Michelle ;

Lu, Shicheng ;

Veazey, Joshua P. ;

Huang, Mengchen ;

Irvin, Patrick ;

Ryu, Sangwoo ;

Lee, Hyungwoo ;

Eom, Chang-Beom ;

Hellberg, C. Stephen ;

Levy, Jeremy .

NATURE, 2015, 521 (7551) :196-+

[7] Andreev reflections in the pseudogap state of cuprate superconductors [J].

Choi, HY ;

Bang, YY ;

Campbell, DK .

PHYSICAL REVIEW B, 2000, 61 (14) :9748-9751

[8] Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ [J].

Corson, J ;

Mallozzi, R ;

Orenstein, J ;

Eckstein, JN ;

Bozovic, I .

NATURE, 1999, 398 (6724) :221-223

[9] Pseudogap transition within the superconducting phase in the three-band Hubbard model [J].

Dash, S. S. ;

Senechal, D. .

PHYSICAL REVIEW B, 2019, 100 (21)

[10] Coherence and single-particle excitations in the high-temperature superconductors [J].

Deutscher, G .

NATURE, 1999, 397 (6718) :410-412

← 1 2 3 4 5 →