Positive to negative zero-field cooled exchange bias in La0.5Sr0.5Mn0.8Co0.2O3 ceramics

We report the exchange bias properties in the bulk Ni45Co5Mn38Sn12quaternary Heusler alloy. The ferromagnetic (FM) –antiferromagnetic (AFM) interactions get reinforced after the Co substitution for Ni in the Ni-Mn-Sn alloy, which increase the exchange bias field (HE). A maximum shift in hysteresis loops of 306 Oe was observed in the 10 kOe field cooled sample. The origin of this large exchange bias field has been discussed. Magnetic hysteresis loop obtained in the zero field cooled (ZFC) mode shows double-shifted loop, and the reason of this phenomenon has been explained in detail.

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Role of induced exchange bias in zero field spin–orbit torque magnetization switching in Pt/[Ni/Co]/PtMn

AIP Advances ◽

10.1063/5.0015842 ◽

2020 ◽

Vol 10 (8) ◽

pp. 085320

Author(s):

Maxime Vergès ◽

Vinod Kumar ◽

Po-Hung Lin ◽

Stéphane Mangin ◽

Chih-Huang Lai

Keyword(s):

Exchange Bias ◽

Zero Field ◽

Spin Orbit ◽

Magnetization Switching

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Zero-field cooled exchange bias and magnetization reversal in La 1.5 Sr 0.5 Co 0.4 Fe 0.6 MnO 6

Current Applied Physics ◽

10.1016/j.cap.2017.12.006 ◽

2018 ◽

Vol 18 (2) ◽

pp. 261-266 ◽

Cited By ~ 5

Author(s):

L. Xie ◽

H.G. Zhang

Keyword(s):

Magnetization Reversal ◽

Exchange Bias ◽

Zero Field

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Structural Investigation and Zero-Field-Cooled Exchange Bias in Nanocrystalline LaFeO3

Journal of Superconductivity and Novel Magnetism ◽

10.1007/s10948-016-3520-4 ◽

2016 ◽

Vol 29 (8) ◽

pp. 2089-2097 ◽

Cited By ~ 5

Author(s):

Pranat Jain ◽

Sanjay Srivastava

Keyword(s):

Exchange Bias ◽

Structural Investigation ◽

Zero Field

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Oscillatory Angular Dependence of Exchange Bias for Epitaxial NiO-Co (001) Bilayers

MRS Proceedings ◽

10.1557/proc-674-t1.6 ◽

2001 ◽

Vol 674 ◽

Cited By ~ 1

Author(s):

S. Dubourg ◽

J.F. Bobo ◽

B. Warot ◽

E. Snoeck ◽

J.C. Ousset

Keyword(s):

Magnetic Field ◽

Exchange Bias ◽

Magnetic Hysteresis ◽

Hysteresis Loops ◽

Field Application ◽

Zero Field ◽

Sign Change ◽

Realistic Description ◽

Sputter Deposited ◽

The Magnetic Field

ABSTRACTWe have sputter-deposited NiO-Co bilayers on MgO (001) substrates. NiO grows epitaxially on MgO at 900°C and subsequently the room deposited 80 Åthick Co films have a fcc crystal structure in epitaxy with the oxide underlayer. These samples were warmed up to 300° C and then zero-field or field cooled through the NiO Néel temperature (a 300 Oe magnetic field was applied along the [100] or the [110] MgO axis). Magnetic hysteresis loops were obtained by magneto-optical Kerr effect, the magnetic field being oriented in the plane of the substrate for various angles α with respect to the [100] direction. The usually expected behavior for such experiments is a smooth angular α dependence of the exchange bias HE close to a cosine with only one sign change over 180°. The high crystallographic coherence of our NiO/Co bilayers induces a very unusual oscillatory HE (α) dependence with several sign changes according to the NiO axis field application. Despite of the Co magnetization switching mechanism which is not a pure coherent rotation, we propose a Stoner-Wohlfhart model including four fold anisotropy and unidirectional exchange anisotropy giving a realistic description of these typical magnetic properties.

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Large zero-field cooled exchange bias in Ba1+Mn8O16 nanoribbons

Applied Surface Science ◽

10.1016/j.apsusc.2015.09.239 ◽

2015 ◽

Vol 357 ◽

pp. 2343-2346 ◽

Cited By ~ 2

Author(s):

Jiangying Yu ◽

Li Wang ◽

Kai Huang ◽

Zunyi Chen ◽

Yuxian Guo

Keyword(s):

Exchange Bias ◽

Zero Field

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Spin-glass behavior and zero-field-cooled exchange bias in a Cr-based antiperovskite compound PdNCr3

Journal of Materials Chemistry C ◽

10.1039/c5tc00423c ◽

2015 ◽

Vol 3 (22) ◽

pp. 5683-5696 ◽

Cited By ~ 39

Author(s):

S. Lin ◽

D. F. Shao ◽

J. C. Lin ◽

L. Zu ◽

X. C. Kan ◽

...

Keyword(s):

Spin Glass ◽

Exchange Bias ◽

Theoretical Calculations ◽

Zero Field ◽

Spin Glass Behavior ◽

Glass Behavior

The nature of spin-glass behavior and zero-field-cooled exchange bias of antiperovskite PdNCr3 has been confirmed via the combination of experiment measurements and theoretical calculations.

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