Anisotropic response of the moving vortex lattice in superconducting Mo (1-x)Ge x amorphous films

M. I. Dolz; D. E. Shalóm; H. Pastoriza; D. O. López

doi:10.1016/j.physc.2012.01.005

Anisotropic response of the moving vortex lattice in superconducting Mo _(1-x)Ge _x amorphous films

M. I. Dolz, D. E. Shalóm, H. Pastoriza, D. O. López

Electrical Engineering

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

Abstract

We have performed magnetic susceptibility measurements in Mo _1-xGe _x amorphous thin films biased with an electrical current using anisotropic coils. We tested the symmetry of the vortex response changing the relative orientation between the bias current and the susceptibility coils. We found a region in the DC current-temperature phase diagram where the dynamical vortex structures behave anisotropically. In this region the shielding capability of the superconducting currents measured by the susceptibility coils is less effective along the direction of vortex motion compared to the transverse direction. This anisotropic response is found in the same region where the peak effect in the critical current is developed. On rising temperature the isotropic behavior is recovered.

Original language	English (US)
Pages (from-to)	34-37
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	474
DOIs	https://doi.org/10.1016/j.physc.2012.01.005
State	Published - Mar 2012

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1016/j.physc.2012.01.005

Cite this

@article{beb8217ebcba4094a17a96716d919361,

title = "Anisotropic response of the moving vortex lattice in superconducting Mo (1-x)Ge x amorphous films",

abstract = "We have performed magnetic susceptibility measurements in Mo 1-xGe x amorphous thin films biased with an electrical current using anisotropic coils. We tested the symmetry of the vortex response changing the relative orientation between the bias current and the susceptibility coils. We found a region in the DC current-temperature phase diagram where the dynamical vortex structures behave anisotropically. In this region the shielding capability of the superconducting currents measured by the susceptibility coils is less effective along the direction of vortex motion compared to the transverse direction. This anisotropic response is found in the same region where the peak effect in the critical current is developed. On rising temperature the isotropic behavior is recovered.",

author = "Dolz, {M. I.} and Shal{\'o}m, {D. E.} and H. Pastoriza and L{\'o}pez, {D. O.}",

note = "Funding Information: We are very grateful to M. Hesselberth and P.H. Kes for helping us with the deposition of the MoGe films on the planar coils. This project was financially supported by CNEA and CONICET. M.I.D., D.E.S and H.P. researchers of CONICET.",

year = "2012",

month = mar,

doi = "10.1016/j.physc.2012.01.005",

language = "English (US)",

volume = "474",

pages = "34--37",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Anisotropic response of the moving vortex lattice in superconducting Mo (1-x)Ge x amorphous films

AU - Dolz, M. I.

AU - Shalóm, D. E.

AU - Pastoriza, H.

AU - López, D. O.

N1 - Funding Information: We are very grateful to M. Hesselberth and P.H. Kes for helping us with the deposition of the MoGe films on the planar coils. This project was financially supported by CNEA and CONICET. M.I.D., D.E.S and H.P. researchers of CONICET.

PY - 2012/3

Y1 - 2012/3

N2 - We have performed magnetic susceptibility measurements in Mo 1-xGe x amorphous thin films biased with an electrical current using anisotropic coils. We tested the symmetry of the vortex response changing the relative orientation between the bias current and the susceptibility coils. We found a region in the DC current-temperature phase diagram where the dynamical vortex structures behave anisotropically. In this region the shielding capability of the superconducting currents measured by the susceptibility coils is less effective along the direction of vortex motion compared to the transverse direction. This anisotropic response is found in the same region where the peak effect in the critical current is developed. On rising temperature the isotropic behavior is recovered.

AB - We have performed magnetic susceptibility measurements in Mo 1-xGe x amorphous thin films biased with an electrical current using anisotropic coils. We tested the symmetry of the vortex response changing the relative orientation between the bias current and the susceptibility coils. We found a region in the DC current-temperature phase diagram where the dynamical vortex structures behave anisotropically. In this region the shielding capability of the superconducting currents measured by the susceptibility coils is less effective along the direction of vortex motion compared to the transverse direction. This anisotropic response is found in the same region where the peak effect in the critical current is developed. On rising temperature the isotropic behavior is recovered.

UR - http://www.scopus.com/inward/record.url?scp=84856482874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856482874&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2012.01.005

DO - 10.1016/j.physc.2012.01.005

M3 - Article

AN - SCOPUS:84856482874

SN - 0921-4534

VL - 474

SP - 34

EP - 37

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

ER -

Anisotropic response of the moving vortex lattice in superconducting Mo _(1-x)Ge _x amorphous films

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this