The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Entrée de flux magnétique activée thermiquement dans une bobine de détection à travers un barrage de flux à haute température. Tc le dispositif d'interférence quantique supraconducteur (SQUID) est étudié. Le comportement de cette activation thermique est analysé en termes de courant circulant dans la bobine de détection. Il est démontré que l'activation thermique peut être évitée lorsque le courant de circulation devient bien inférieur au courant critique du barrage de flux. Il est également montré que nous avons besoin d'un long temps d'attente pour réaliser cette situation puisque le courant circulant décroît de manière logarithmique avec le temps dans le cas de l'activation thermique. La relation entre l'activation thermique et le courant circulant est qualitativement confirmée par l'expérience. Nous montrons également une méthode permettant de réduire de force le courant de circulation au lieu de l’activation thermique. Dans ce cas, nous pouvons empêcher l’activation thermique sans un long temps d’attente.
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Keiji ENPUKU, Daishi TOKIMIZU, Daisuke KURODA, Shintaro HIJIYA, "Thermally-Activated Flux Entry into a Pickup Coil through a Flux Dam in High Tc SQUID Magnetometers" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 3, pp. 681-686, March 2002, doi: .
Abstract: Thermally activated magnetic-flux entry into a pickup coil through a flux dam in high Tc superconducting quantum interference device (SQUID) is studied. The behavior of this thermal activation is analyzed in terms of the circulating current flowing in the pickup coil. It is shown that the thermal activation can be prevented when the circulating current becomes much below a critical current of the flux dam. It is also shown that we need a long waiting time in order to realize this situation since the circulating current logarithmically decays with time in the case of the thermal activation. The relationship between the thermal activation and the circulating current is qualitatively confirmed with the experiment. We also show a method in order to forcibly reduce the circulating current instead of the thermal activation. In this case, we can prevent the thermal activation without the long waiting time.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_3_681/_p
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@ARTICLE{e85-c_3_681,
author={Keiji ENPUKU, Daishi TOKIMIZU, Daisuke KURODA, Shintaro HIJIYA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Thermally-Activated Flux Entry into a Pickup Coil through a Flux Dam in High Tc SQUID Magnetometers},
year={2002},
volume={E85-C},
number={3},
pages={681-686},
abstract={Thermally activated magnetic-flux entry into a pickup coil through a flux dam in high Tc superconducting quantum interference device (SQUID) is studied. The behavior of this thermal activation is analyzed in terms of the circulating current flowing in the pickup coil. It is shown that the thermal activation can be prevented when the circulating current becomes much below a critical current of the flux dam. It is also shown that we need a long waiting time in order to realize this situation since the circulating current logarithmically decays with time in the case of the thermal activation. The relationship between the thermal activation and the circulating current is qualitatively confirmed with the experiment. We also show a method in order to forcibly reduce the circulating current instead of the thermal activation. In this case, we can prevent the thermal activation without the long waiting time.},
keywords={},
doi={},
ISSN={},
month={March},}
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TY - JOUR
TI - Thermally-Activated Flux Entry into a Pickup Coil through a Flux Dam in High Tc SQUID Magnetometers
T2 - IEICE TRANSACTIONS on Electronics
SP - 681
EP - 686
AU - Keiji ENPUKU
AU - Daishi TOKIMIZU
AU - Daisuke KURODA
AU - Shintaro HIJIYA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 2002
AB - Thermally activated magnetic-flux entry into a pickup coil through a flux dam in high Tc superconducting quantum interference device (SQUID) is studied. The behavior of this thermal activation is analyzed in terms of the circulating current flowing in the pickup coil. It is shown that the thermal activation can be prevented when the circulating current becomes much below a critical current of the flux dam. It is also shown that we need a long waiting time in order to realize this situation since the circulating current logarithmically decays with time in the case of the thermal activation. The relationship between the thermal activation and the circulating current is qualitatively confirmed with the experiment. We also show a method in order to forcibly reduce the circulating current instead of the thermal activation. In this case, we can prevent the thermal activation without the long waiting time.
ER -