Study of upper critical field in PbxLa1-xMo6Se8in high magnetic fields

The orientational anisotropy of the pseudogap closing field Hpg is investigated in magnetic fields up to 60 T applied parallel (||ab) and normal (||c) to CuO 2 planes in Bi 2 Sr 2 CaCu 2 O 8+y. We find that, in contrast to large field anisotropy related to the orbital motion of Cooper pairs below the upper critical field Hc2, the temperature-independent and small anisotropy of Hpg is due to anisotropy of the g-factor: [Formula: see text], indicating correlations only in the spin-channel.

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Upper critical field of electron-dopedPr2−xCexCuO4−δin parallel magnetic fields

Physical Review B ◽

10.1103/physrevb.75.172508 ◽

2007 ◽

Vol 75 (17) ◽

Cited By ~ 9

Author(s):

Pengcheng Li ◽

F. F. Balakirev ◽

R. L. Greene

Keyword(s):

Magnetic Fields ◽

Critical Field ◽

Upper Critical Field ◽

Parallel Magnetic Fields

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Temperature Dependence of the Upper Critical Field of Anisotropic Singlet Superconductivity in a Square Lattice Tight-Binding Model in Parallel Magnetic Fields

Journal of the Physical Society of Japan ◽

10.1143/jpsj.71.1234 ◽

2002 ◽

Vol 71 (5) ◽

pp. 1234-1237 ◽

Cited By ~ 19

Author(s):

Hiroshi Shimahara ◽

Kentaro Moriwake

Keyword(s):

Magnetic Fields ◽

Temperature Dependence ◽

Critical Field ◽

Tight Binding ◽

Upper Critical Field ◽

Square Lattice ◽

Tight Binding Model ◽

Binding Model ◽

Parallel Magnetic Fields

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Abnormal behaviour of the resistive transition to the normal state in superconducting Nb-Ti tapes just below Hc2

EPJ Web of Conferences ◽

10.1051/epjconf/201920102001 ◽

2019 ◽

Vol 201 ◽

pp. 02001 ◽

Cited By ~ 1

Author(s):

Valentin Guryev ◽

Sergey Shavkin ◽

Alla Irodova ◽

Vitaliy Kruglov

Keyword(s):

Critical Field ◽

Upper Critical Field ◽

Threshold Current ◽

High Magnetic Fields ◽

Voltage Noise ◽

Irreversibility Field ◽

Resistive Transition ◽

Abnormal Behaviour ◽

Self Heating ◽

Granular Superconductors

The results of studying the resistive properties of Nb-Ti tapes in high magnetic fields close to the upper critical field (Hc2) are reported. The voltage-current curves (VCCs) and resistance-current cures (RCCs) show an “abnormal” hysteresis which is opposite in sign to a common thermal one caused by self-heating. Several features were noted: the existence of threshold current below which VCCs are reversible and the presence of excessive voltage noise in the hysteresis region. Earlier the similar behaviour was observed in granular superconductors. The nature of the “granular” properties of Nb-Ti tapes in high magnetic field and the relation with other observed effects, such as the irreversibility field and the apparent anisotropy of the upper critical field are discussed.

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Self-consistent localization theory in magnetic fields and the upper critical field of disordered superconductors

Journal of Physics Condensed Matter ◽

10.1088/0953-8984/3/21/009 ◽

1991 ◽

Vol 3 (21) ◽

pp. 3765-3775 ◽

Cited By ~ 2

Author(s):

A Theumann ◽

M A P Idiart

Keyword(s):

Magnetic Fields ◽

Critical Field ◽

Upper Critical Field ◽

Localization Theory ◽

Self Consistent ◽

Disordered Superconductors

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TRANSPORT ANISOTROPY IN ErNi2B2C ALONG c-AXIS

International Journal of Modern Physics B ◽

10.1142/s0217979210057547 ◽

2010 ◽

Vol 24 (30) ◽

pp. 5861-5866

Author(s):

W. C. LEE

Keyword(s):

Magnetic Fields ◽

Temperature Dependence ◽

Field Dependence ◽

Critical Field ◽

Upper Critical Field ◽

Pair Breaking ◽

Neel Temperature ◽

Néel Temperature ◽

Anisotropic Field ◽

Magnetic Pair

The resistivities along c-axis ρc(H, T) of ErNi 2 B 2 C have been measured with H⊥ and H‖c-axis for 2 < T < 300 K and the superconducting upper critical field Hc2(T) curves of ErNi 2 B 2 C were constructed for each magnetic fields. Our Hc2(T) curves have been compared and discussed with those from ρab(H, T) measurements which explain the anisotropy and its temperature dependence of Hc2(T) are thought to arise from magnetic pair breaking and the anisotropic field dependence of Néel temperature TN originated from Er +3 sublattice.

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