Top non-collinear spin valves with a composite free layer for hysteresis-free GMR sensors / Ustinov V. V.,Milyaev M. A.,Naumova L. I.,Krinitsina T. P.,Proglyado V. V.,Patrakov E. I. // JOURNAL OF THE KOREAN PHYSICAL SOCIETY. - 2013. - V. 63, l. 3, SI. - P. 663-666.

ISSN/EISSN:

0374-4884 / 1976-8524

Type:

Article; Proceedings Paper

Abstract:

Top spin valves of Ta/{[}NiFe/CoFe]/Cu/CoFe/(FeMn, MnIr)/Ta composition with two types of antiferromagnetic layers (Fe50Mn50 or Mn75Ir25) were prepared by DC magnetron sputtering. The three-step method for a free layer coercivity reduction has been used, namely, (i) deposition of a composite free layer NiFe/CoFe, (ii) optimization of magnetic and nonmagnetic layer thicknesses and (iii) application of a ``nearly parallel{''} anisotropy configuration. It is shown that the coercivity in spin valves studied can be effectively reduced to a few tenths of an Oersted keeping the magnetoresistance higher than 8\%.

Author keywords:

Spin valve; Giant magnetoresistance; Composite free layer; Hysteresis; Coercivity GIANT MAGNETORESISTANCE

DOI:

10.3938/jkps.63.663

Web of Science ID:

ISI:000323502800096

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	AUG
Note	19th International Conference on Magnetism (ICM), Busan, SOUTH KOREA, JUL 08-12, 2012
Publisher	KOREAN PHYSICAL SOC
Address	635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA
Language	English
EISSN	1976-8524
Keywords-Plus	GIANT MAGNETORESISTANCE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	ustinov@imp.uran.ru
ResearcherID-Numbers	Milyaev, Mikhail/J-8070-2013 Proglyado, Vyacheslav/K-7725-2013 Patrakov, Evgeny/I-7416-2013 Ustinov, Vladimir/G-7501-2011 Naumova, Larisa/K-3028-2013 Krinitsina, Tatiana/I-6600-2013
ORCID-Numbers	Milyaev, Mikhail/0000-0001-7828-3571 Proglyado, Vyacheslav/0000-0003-3760-8696 Patrakov, Evgeny/0000-0003-2793-9248 Ustinov, Vladimir/0000-0002-5155-7947 Naumova, Larisa/0000-0001-5463-6790 Krinitsina, Tatiana/0000-0003-1029-0737
Funding-Acknowledgement	Presidium of Russian Academy of Sciences {[}12-P-2-1051]; RFBR {[}13-02-00740]; RF {[}SS-6172.2012.2]
Funding-Text	This work was performed according to the academic project ``Spin{''
Number-of-Cited-References	8
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	14
Journal-ISO	J. Korean Phys. Soc.
Doc-Delivery-Number	206FE