Characteristics of superconducting flux flow transistors under irradiation of femtosecond laser pulses

Y. Doda, Toshihiko Kiwa, I. Kawayama, H. Murakami, M. Tonouchi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have fabricated superconducting flux flow transistors with YBCO thin films and investigated the vortex flow characteristics under the irradiation of femtosecond laser pulses. The vortex flow velocity was calculated by the magnetic field dependence of the flow voltage. The obtained velocity without laser irradiation is 0.08-1.37 × 104 m/s for the bias current IB = 0.4-0.8 mA. The flow voltage increased gradually when the irradiated laser power was up to 10 mW, however, it increased drastically when the laser power was more than 10 mW. The maximum velocity of 6.3 × 10 4 m/s was obtained at the laser power of 15 mW. The result indicates that the laser pulses excite the vortices and accelerate the vortex velocity.

Original languageEnglish
Pages (from-to)1504-1508
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume392
Issue numberPART 2
DOIs
Publication statusPublished - Oct 2003
Externally publishedYes

Fingerprint

Ultrashort pulses
Transistors
Vortex flow
transistors
Irradiation
Fluxes
irradiation
pulses
vortices
lasers
Lasers
Bias currents
Electric potential
Laser beam effects
Flow velocity
Laser pulses
flow characteristics
electric potential
Magnetic fields
Thin films

Keywords

  • Femtosecond laser pulses
  • SFFT

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Characteristics of superconducting flux flow transistors under irradiation of femtosecond laser pulses. / Doda, Y.; Kiwa, Toshihiko; Kawayama, I.; Murakami, H.; Tonouchi, M.

In: Physica C: Superconductivity and its Applications, Vol. 392, No. PART 2, 10.2003, p. 1504-1508.

Research output: Contribution to journalArticle

@article{938855edc9864863acaf8c1161f641f3,
title = "Characteristics of superconducting flux flow transistors under irradiation of femtosecond laser pulses",
abstract = "We have fabricated superconducting flux flow transistors with YBCO thin films and investigated the vortex flow characteristics under the irradiation of femtosecond laser pulses. The vortex flow velocity was calculated by the magnetic field dependence of the flow voltage. The obtained velocity without laser irradiation is 0.08-1.37 × 104 m/s for the bias current IB = 0.4-0.8 mA. The flow voltage increased gradually when the irradiated laser power was up to 10 mW, however, it increased drastically when the laser power was more than 10 mW. The maximum velocity of 6.3 × 10 4 m/s was obtained at the laser power of 15 mW. The result indicates that the laser pulses excite the vortices and accelerate the vortex velocity.",
keywords = "Femtosecond laser pulses, SFFT",
author = "Y. Doda and Toshihiko Kiwa and I. Kawayama and H. Murakami and M. Tonouchi",
year = "2003",
month = "10",
doi = "10.1016/S0921-4534(03)00779-2",
language = "English",
volume = "392",
pages = "1504--1508",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 2",

}

TY - JOUR

T1 - Characteristics of superconducting flux flow transistors under irradiation of femtosecond laser pulses

AU - Doda, Y.

AU - Kiwa, Toshihiko

AU - Kawayama, I.

AU - Murakami, H.

AU - Tonouchi, M.

PY - 2003/10

Y1 - 2003/10

N2 - We have fabricated superconducting flux flow transistors with YBCO thin films and investigated the vortex flow characteristics under the irradiation of femtosecond laser pulses. The vortex flow velocity was calculated by the magnetic field dependence of the flow voltage. The obtained velocity without laser irradiation is 0.08-1.37 × 104 m/s for the bias current IB = 0.4-0.8 mA. The flow voltage increased gradually when the irradiated laser power was up to 10 mW, however, it increased drastically when the laser power was more than 10 mW. The maximum velocity of 6.3 × 10 4 m/s was obtained at the laser power of 15 mW. The result indicates that the laser pulses excite the vortices and accelerate the vortex velocity.

AB - We have fabricated superconducting flux flow transistors with YBCO thin films and investigated the vortex flow characteristics under the irradiation of femtosecond laser pulses. The vortex flow velocity was calculated by the magnetic field dependence of the flow voltage. The obtained velocity without laser irradiation is 0.08-1.37 × 104 m/s for the bias current IB = 0.4-0.8 mA. The flow voltage increased gradually when the irradiated laser power was up to 10 mW, however, it increased drastically when the laser power was more than 10 mW. The maximum velocity of 6.3 × 10 4 m/s was obtained at the laser power of 15 mW. The result indicates that the laser pulses excite the vortices and accelerate the vortex velocity.

KW - Femtosecond laser pulses

KW - SFFT

UR - http://www.scopus.com/inward/record.url?scp=0042691590&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042691590&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(03)00779-2

DO - 10.1016/S0921-4534(03)00779-2

M3 - Article

AN - SCOPUS:0042691590

VL - 392

SP - 1504

EP - 1508

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 2

ER -