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
Les origines du décalage de la ligne de base ont été discutées en tenant compte des propriétés hors-piste mesurées à l’aide d’une tête d’écriture large avec des largeurs de piste de 97 µm et d’une tête de lecture étroite avec des largeurs de piste de 2.7 µm. Le décalage de la ligne de base augmentait lorsque la tête de lecture était rapprochée du bord de la piste. Au-delà du bord de la piste, le décalage de la ligne de base a diminué jusqu'à atteindre des valeurs négatives. La courbe de réponse impulsionnelle de la tête MR à l'aimantation perpendiculaire a été estimée à partir des ondes de relecture de la tête MIG et de la tête MR. La courbe de réponse dépendait de la largeur de la piste enregistrée. Lorsque la piste enregistrée était étroite, le sous-dépassement de la courbe de réponse était plus petit que celui du champ de tête basé sur le modèle 2D de tête annulaire à double espace avec une largeur de piste infinie. Ce petit sous-dépassement induit une sensibilité de la composante continue de la magnétisation enregistrée et provoque le décalage de la ligne de base. Pour calculer les ondes de lecture de la tête MR pour un support d'enregistrement perpendiculaire monocouche avec enregistrement sur piste étroite, l'effet du champ parasite au bord de la piste enregistrée doit être inclus dans la courbe de réponse impulsionnelle de la tête de lecture.
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Takahiro KUROSAWA, Naoki HONDA, Kazuhiro OUCHI, "Baseline Shift in Readback Waves of MR Head for Single-Layer Perpendicular Recording Media" in IEICE TRANSACTIONS on Electronics,
vol. E83-C, no. 9, pp. 1517-1521, September 2000, doi: .
Abstract: The origins of baseline shift were discussed considering the measured off-track properties using a wide write head with track widths of 97 µm and a narrow read head with track widths of 2.7 µm. The baseline shift increased when the read head was moved close to the track edge. Beyond the track edge, baseline shift decreased to negative values. The impulse response curve of the MR head to the perpendicular magnetization was estimated from the readback waves of the MIG head and the MR head. The response curve depended on the recorded track width. When the recorded track was narrow, the undershoot of the response curve was smaller than that of the head field based on the 2D double-gap ring head model with infinite track width. This small undershoot induces sensitivity of the DC-component of the recorded magnetization and causes the baseline shift. To calculate the readback waves of the MR head for single-layer perpendicular recording media with narrow-track recording, the effect from stray field at the recorded track edge must be included in the impulse response curve of read head.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e83-c_9_1517/_p
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@ARTICLE{e83-c_9_1517,
author={Takahiro KUROSAWA, Naoki HONDA, Kazuhiro OUCHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Baseline Shift in Readback Waves of MR Head for Single-Layer Perpendicular Recording Media},
year={2000},
volume={E83-C},
number={9},
pages={1517-1521},
abstract={The origins of baseline shift were discussed considering the measured off-track properties using a wide write head with track widths of 97 µm and a narrow read head with track widths of 2.7 µm. The baseline shift increased when the read head was moved close to the track edge. Beyond the track edge, baseline shift decreased to negative values. The impulse response curve of the MR head to the perpendicular magnetization was estimated from the readback waves of the MIG head and the MR head. The response curve depended on the recorded track width. When the recorded track was narrow, the undershoot of the response curve was smaller than that of the head field based on the 2D double-gap ring head model with infinite track width. This small undershoot induces sensitivity of the DC-component of the recorded magnetization and causes the baseline shift. To calculate the readback waves of the MR head for single-layer perpendicular recording media with narrow-track recording, the effect from stray field at the recorded track edge must be included in the impulse response curve of read head.},
keywords={},
doi={},
ISSN={},
month={September},}
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TY - JOUR
TI - Baseline Shift in Readback Waves of MR Head for Single-Layer Perpendicular Recording Media
T2 - IEICE TRANSACTIONS on Electronics
SP - 1517
EP - 1521
AU - Takahiro KUROSAWA
AU - Naoki HONDA
AU - Kazuhiro OUCHI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E83-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2000
AB - The origins of baseline shift were discussed considering the measured off-track properties using a wide write head with track widths of 97 µm and a narrow read head with track widths of 2.7 µm. The baseline shift increased when the read head was moved close to the track edge. Beyond the track edge, baseline shift decreased to negative values. The impulse response curve of the MR head to the perpendicular magnetization was estimated from the readback waves of the MIG head and the MR head. The response curve depended on the recorded track width. When the recorded track was narrow, the undershoot of the response curve was smaller than that of the head field based on the 2D double-gap ring head model with infinite track width. This small undershoot induces sensitivity of the DC-component of the recorded magnetization and causes the baseline shift. To calculate the readback waves of the MR head for single-layer perpendicular recording media with narrow-track recording, the effect from stray field at the recorded track edge must be included in the impulse response curve of read head.
ER -