High-pressure synthesis of MgB
 2
 superconductor with
 T
 c
 above 39 K

Magnetic relaxation in a MgB 2 superconductor was measured. The temperature dependence of the normalized relaxation rate was determined for three different magnetic fields. By extrapolating these rates to T = 0 K, we find that these extrapolations do not approach zero, indicating quantum tunneling of vortices in the superconductor. A quantum correction of the relaxation rate, followed by the correction of the magnetic moment, is proposed. Using the quantum correction, we find that U 0 increases with decreasing temperature and approaches a maximum at T = 0 K.

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Ultrasonic Properties of the MgB ₂ Superconductor

Wang

et al. 2001

Chinese Phys. Lett.

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High-pressure synthesis of MgB ₂ superconductor with T _c above 39 K

Cited by 8 publications

References 0 publications

EELS studies of MgB2 superconductor obtained under high pressure

EELS studies of MgB2 superconductor obtained under high pressure

Quantum tunneling of vortices in MgB2 superconductor

Ultrasonic Properties of the MgB ₂ Superconductor

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High-pressure synthesis of MgB 2 superconductor with T c above 39 K

Cited by 8 publications

References 0 publications

EELS studies of MgB2 superconductor obtained under high pressure

EELS studies of MgB2 superconductor obtained under high pressure

Quantum tunneling of vortices in MgB2 superconductor

Ultrasonic Properties of the MgB 2 Superconductor

Contact Info

Product

Resources

About

High-pressure synthesis of MgB ₂ superconductor with T _c above 39 K

Ultrasonic Properties of the MgB ₂ Superconductor