Magnetostriction in superconducting MgB2

Kundys, B.; Bukhantsev, Yu.; Vasiliev, S.; Wiśniewski, A.; Jun, J.; Казаков, С. М.; Karpiński, J.; Szymczak, H.

doi:10.1016/s0921-4526(02)01131-6

Cited by 11 publications

(14 citation statements)

References 26 publications

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“…Figures 1 and 2 reproduce the magnetostriction measurements of Nabialek et al, 12 at several temperatures on polycrystalline superconducting MgB 2 , displayed in their Figs. 1 and 2.…”

Section: A Observations Of Nabialek Et Al Reference 12supporting

confidence: 66%

“…The special feature of the data of Nabialek et al 12 which we address, and account for in our analysis, is the migration of the magnetostriction curves, evident at the highest applied fields in Figs. B A and B 0 are normalized with respect to B * = 0 J C0 W, and the relative magnetostriction is normalized with respect to c 0 , the elastic constant of the material.…”

Section: A Observations Of Nabialek Et Al Reference 12mentioning

confidence: 61%

“…This picture is further confirmed by the correlations, observed in some specimens, during sweeps of the applied field H A , of abrupt collapses of the magnetic moment ͑flux avalanches͒, and corresponding sudden decreases in the magnitudes of the magnetostriction. 12,23 [18][19][20] Exploiting the critical state approach, Inanir and Celebi 21 have calculated curves reproducing the observation of such structure in the magnetostriction curves reported by Eremenko et al 18 However, the critical state framework alone cannot account for all of the rich variety of behaviors encountered in measurements of magnetostriction in type II superconductors.…”

Section: Introductionmentioning

confidence: 90%

See 2 more Smart Citations

Coexistence of critical and normal state magnetostrictions in type II superconductors: A model exploration

Çelebi

İnanır

LeBlanc

2007

Journal of Applied Physics

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Hysteretic behavior of microwave second harmonic emission by superconductors in the critical state AIP Conf. Exploiting the simple formula proposed by Ikuta et al. ͓Phy. Rev. Lett. 70, 2166 ͑1993͔͒ to describe the magnetostriction of high T C superconductors and introducing a B 2 dependent magnetic flux density component, as proposed by Koziol and Dunlap ͓J. Appl. Phys. 79, 4662 ͑1996͔͒, we reproduce families of magnetostriction curves measured by Nabialek et al. ͓Physica B 319, 286 ͑2002͔͒ and de Visser et al. ͓Phys. Rev. B 45, 2962 ͑1992͔͒, using a simple expression for the dependence of the critical current density J C on the magnetic field in each analysis.

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“…Figures 1 and 2 reproduce the magnetostriction measurements of Nabialek et al, 12 at several temperatures on polycrystalline superconducting MgB 2 , displayed in their Figs. 1 and 2.…”

Section: A Observations Of Nabialek Et Al Reference 12supporting

confidence: 66%

Section: A Observations Of Nabialek Et Al Reference 12mentioning

confidence: 61%

Section: Introductionmentioning

confidence: 90%

See 1 more Smart Citation

Coexistence of critical and normal state magnetostrictions in type II superconductors: A model exploration

Çelebi

İnanır

LeBlanc

2007

Journal of Applied Physics

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“…As verified by a great number of papers [11][12][13][14][15][16][17][18][19][20][21][22][23][24], this results in an anomalous irreversible magnetostriction and shape distortion in type-II superconductors with strong pinning. The objective of this work is to provide a model to calculate the internal stress and magnetostriction that occurs when a current is transported through a superconductor in absence and presence of the external field in slab geometry within the critical state model.…”

Section: Introductionmentioning

confidence: 86%

Effect of Transport Current on the Pinning Induced Magnetostriction of Type-II Superconductors

İnanır

Erdoğan

2008

Acta Phys. Pol. A

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We investigated theoretically the influence of the transport current and applied magnetic field on the magnetostriction of type-II superconductors. In order to study the magnetostrictive response of a superconducting slab specimen, three cases of magnetic history of the sample are considered in the present work: (1) the transport current applied after zero-field-cooling, (2) the current and field are applied simultaneously, (3) the current is applied at the remenent critical state. In the proposed model, the exponential critical state model and the Bean model is employed to compute the flux profile within the slab subjected to sufficiently small transport current and applied magnetic field. Simple expressions for the internal stress and the magnetostriction in terms of this magnetic profile are derived. The magnetostriction curves versus the transport current and applied field are presented.

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“…3 presents the results of magnetostriction measurements performed on (La 0.8 Ba 0.2 ) 0.93 MnO 3 single crystal. The magnetostriction measurements were carried out in the temperature range from 10 to 150 K as a function of external magnetic fields up to 12 T. Isotherms of the parallel (l jj ) and perpendicular (l 1 ) magnetostriction were measured by means of the three terminal capacitance dilatometer; details can be found in [9].…”

mentioning

confidence: 99%