Nonmonotonic temperature dependence of the experimentally determined vortex-creep activation energy in disordered high-temperature superconductors

We present Hall effect measurements in the normal state of the high temperature superconducting ceramics La2−xSrxCuO4 (x=0, 0.1, 0.15, 0.2, 0.25, 0.3), YBa2Cu3o7 and GdBa2Cu3O7 . The first family has temperature independent Hall constant for x>0, while in the other two systems RH is proportional to 1/T. From the Hall effect it follows that the transport in these compounds is hole-like.

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Origin of the plateau in the temperature dependence of the normalized magnetization relaxation rate in disordered high-temperature superconductors

Physical Review B ◽

10.1103/physrevb.78.212508 ◽

2008 ◽

Vol 78 (21) ◽

Cited By ~ 20

Author(s):

L. Miu ◽

D. Miu ◽

T. Petrisor ◽

A. El Tahan ◽

G. Jakob ◽

...

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

Relaxation Rate ◽

High Temperature Superconductors ◽

Magnetization Relaxation

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Temperature dependence of the upper critical field of type-II superconductors from isothermal magnetization data: Application to high-temperature superconductors

Physical Review B ◽

10.1103/physrevb.66.144506 ◽

2002 ◽

Vol 66 (14) ◽

Cited By ~ 27

Author(s):

I. L. Landau ◽

H. R. Ott

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

Critical Field ◽

High Temperature Superconductors ◽

Upper Critical Field ◽

Type Ii ◽

Type Ii Superconductors ◽

Isothermal Magnetization ◽

Data Application ◽

Magnetization Data

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Anomalous Temperature Dependence of the Lower Critical Fields in High-Temperature Superconductors

Journal of the Physical Society of Japan ◽

10.1143/jpsj.59.24 ◽

1990 ◽

Vol 59 (1) ◽

pp. 24-27 ◽

Cited By ~ 15

Author(s):

Dai S. Hirashima ◽

Tamifusa Matsuura

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

High Temperature Superconductors ◽

Anomalous Temperature Dependence ◽

Critical Fields ◽

Anomalous Temperature

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Experimental determination of the temperature dependence of the superfluid electron density in high-temperature superconductors

Technical Physics Letters ◽

10.1134/s1063785007050124 ◽

2007 ◽

Vol 33 (5) ◽

pp. 404-406 ◽

Cited By ~ 1

Author(s):

E. I. Terukov ◽

P. P. Seregin ◽

A. V. Marchenko

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

Experimental Determination ◽

Electron Density ◽

High Temperature Superconductors

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CREEP ACTIVATION ENERGY OF FLOW PROCESS IN Sn0.2Bi1.8Te3 SINGLE CRYSTALS

Surface Review and Letters ◽

10.1142/s0218625x04006372 ◽

2004 ◽

Vol 11 (04n05) ◽

pp. 443-446

Author(s):

P. H. SONI ◽

C. F. DESAI ◽

S. R. BHAVSAR

Keyword(s):

Activation Energy ◽

Time Dependence ◽

Temperature Dependence ◽

Single Crystals ◽

Vickers Microhardness ◽

Indentation Creep ◽

Flow Process ◽

Creep Activation Energy ◽

Temperature Range ◽

Different Temperatures

Temperature dependence of the Vickers microhardness of Sn 0.2 Bi 1.8 Te 3 single crystals has been studied. Loading time dependence of microhardness at different temperatures has been used for creep study in the temperature range 303 K–373 K. The activation energy for indentation creep of the crystals has been evaluated.

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Temperature dependence of the lower critical field and strong pinning in high-temperature superconductors

Physical Review B ◽

10.1103/physrevb.43.2809 ◽

1991 ◽

Vol 43 (4) ◽

pp. 2809-2820 ◽

Cited By ~ 8

Author(s):

Dragomir Davidović ◽

Ljiljana Dobrosavljević-Grujić

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

Critical Field ◽

High Temperature Superconductors ◽

Lower Critical Field ◽

Strong Pinning

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POSSIBLE ANOMALOUS TEMPERATURE DEPENDENCES OF LONDON PENETRATION DEPTH IN THALLIUM AND BISMUTH HIGH-TEMPERATURE SUPERCONDUCTORS

Modern Physics Letters B ◽

10.1142/s0217984990000660 ◽

1990 ◽

Vol 04 (08) ◽

pp. 525-529 ◽

Cited By ~ 1

Author(s):

A. I. BUZDIN ◽

D. A. KUPTSOV ◽

B. U. VUYICHIT'

Keyword(s):

High Temperature ◽

Temperature Dependence ◽

Penetration Depth ◽

High Temperature Superconductors ◽

Anomalous Temperature Dependence ◽

London Penetration Depth ◽

Anomalous Temperature ◽

Temperature Dependences

Anomalous temperature dependence of London penetration depth is predicted in high-T c superconductors containing several inequivalent Cu-O layers.

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Temperature Dependence of Total AC Loss in High-Temperature Superconducting Tapes

IEEE Transactions on Applied Superconductivity ◽

10.1109/tasc.2009.2015462 ◽

2009 ◽

Vol 19 (4) ◽

pp. 3637-3644 ◽

Cited By ~ 9

Author(s):

Doan N. Nguyen ◽

Pamidi V. P. S. S. Sastry ◽

David C. Knoll ◽

Justin Schwartz

Keyword(s):

Experimental Data ◽

High Temperature ◽

Temperature Dependence ◽

High Temperature Superconductors ◽

Ac Loss ◽

Ac Losses ◽

Transport Losses ◽

Set Up ◽

Interesting Behavior ◽

The Magnetic Field

A versatile experimental facility was designed and set up to measure transport ac losses, magnetization ac losses, and total ac losses in high-temperature superconductors at variable temperatures. Several sets of measurements were carried out in the temperature range of 35 K to 100 K. Sample temperature during the measurements could be controlled within plusmn0.5 K of set temperature. Temperature dependence of transport losses reflects variation of critical current density of the tapes with temperature. Temperature dependence of magnetization losses exhibits an interesting behavior with a peak, whose position shifts to lower temperatures as the magnetic field is increased. Experimental data of ac losses at various temperatures are compared with those calculated using numerical methods. Generally, the simulated results reproduce well the experimental data.

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