Giant non-linear response of superconducting single crystal niobium in a sweeping magnetic field

M. I. Tsindlekht; I. Felner; G. Jung

doi:10.1016/S0921-4534(02)00995-4

Giant non-linear response of superconducting single crystal niobium in a sweeping magnetic field

M. I. Tsindlekht, I. Felner, G. Jung

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Giant enhancement of the non-linear response of a single crystal of Nb placed in a sweeping magnetic field has been experimentally observed. The rectified signal from Nb (T_c = 9.15 K) has been measured by means of an inductive method as a function of temperature, dc field, dc field sweep rate, and the amplitude of ac field. The Nb sample was excited by an amplitude modulated ac field. Under a stationary regime, the rectified signal appears only for magnetic fields (H₀) in the range H_c2 < H₀ < H_c3. However, when the dc field was swept slowly, the rectified signal appears at H₀ > H_c1. This experiment shows that the amplitude of the rectified signal is two orders of magnitude larger than the amplitude of the signal seen under stationary field conditions. Moreover, the amplitude of the rectified signal is a power function of the sweep rate, with the power exponent close to 1.

Original language	English
Pages (from-to)	1827-1829
Number of pages	3
Journal	Physica C: Superconductivity and its Applications
Volume	372-376
Issue number	PART 3
DOIs	https://doi.org/10.1016/S0921-4534(02)00995-4
State	Published - 1 Aug 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(02)00995-4

Cite this

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abstract = "Giant enhancement of the non-linear response of a single crystal of Nb placed in a sweeping magnetic field has been experimentally observed. The rectified signal from Nb (Tc = 9.15 K) has been measured by means of an inductive method as a function of temperature, dc field, dc field sweep rate, and the amplitude of ac field. The Nb sample was excited by an amplitude modulated ac field. Under a stationary regime, the rectified signal appears only for magnetic fields (H0) in the range Hc2 < H0 < Hc3. However, when the dc field was swept slowly, the rectified signal appears at H0 > Hc1. This experiment shows that the amplitude of the rectified signal is two orders of magnitude larger than the amplitude of the signal seen under stationary field conditions. Moreover, the amplitude of the rectified signal is a power function of the sweep rate, with the power exponent close to 1.",

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T1 - Giant non-linear response of superconducting single crystal niobium in a sweeping magnetic field

AU - Tsindlekht, M. I.

AU - Felner, I.

AU - Jung, G.

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N2 - Giant enhancement of the non-linear response of a single crystal of Nb placed in a sweeping magnetic field has been experimentally observed. The rectified signal from Nb (Tc = 9.15 K) has been measured by means of an inductive method as a function of temperature, dc field, dc field sweep rate, and the amplitude of ac field. The Nb sample was excited by an amplitude modulated ac field. Under a stationary regime, the rectified signal appears only for magnetic fields (H0) in the range Hc2 < H0 < Hc3. However, when the dc field was swept slowly, the rectified signal appears at H0 > Hc1. This experiment shows that the amplitude of the rectified signal is two orders of magnitude larger than the amplitude of the signal seen under stationary field conditions. Moreover, the amplitude of the rectified signal is a power function of the sweep rate, with the power exponent close to 1.

AB - Giant enhancement of the non-linear response of a single crystal of Nb placed in a sweeping magnetic field has been experimentally observed. The rectified signal from Nb (Tc = 9.15 K) has been measured by means of an inductive method as a function of temperature, dc field, dc field sweep rate, and the amplitude of ac field. The Nb sample was excited by an amplitude modulated ac field. Under a stationary regime, the rectified signal appears only for magnetic fields (H0) in the range Hc2 < H0 < Hc3. However, when the dc field was swept slowly, the rectified signal appears at H0 > Hc1. This experiment shows that the amplitude of the rectified signal is two orders of magnitude larger than the amplitude of the signal seen under stationary field conditions. Moreover, the amplitude of the rectified signal is a power function of the sweep rate, with the power exponent close to 1.

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Giant non-linear response of superconducting single crystal niobium in a sweeping magnetic field

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