Oscillatory Interlayer Exchange Coupling Through Cu and Various Transition Metals

1991 ◽  
Vol 231 ◽  
Author(s):  
S.S.P. Parkin
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Exchange Coupling ◽  
Noble Metals ◽  
Interlayer Exchange Coupling ◽  
General Phenomenon ◽  
Magnetic Layers ◽  
Almost All ◽  
Interlayer Exchange

AbstractWe show that oscillatory interlayer exchange coupling of thin magnetic layers through metals is a general phenomenon present in almost all the transition and noble metals. Surprisingly the period of the oscillations is approximately the same, about 10Å, in all these metals with the sole exception of Cr for which the period is significantly longer. The strength of the coupling varies systematically throughout the 3d, 4d and 5d transition metals increasing exponentially along each of the transition metal periods and increasing from the 5d to 4d to 3d periods. These results appear to be inconsistent with simple Ruderman-Kittel-Kasuya-Yosida (RKKY) based models.

Observation of an Exponential FeSi Spacer Thickness Dependence of the Antiferromagnetic Exchange Coupling in Fe/Si-Based Multilayers

1997 ◽  
Vol 475 ◽  
Author(s):  
J.T. Kohlhepp ◽  
J.J. De Vries ◽  
F.J.A. Den Broeder ◽  
R. Coehoorn ◽  
R.M. Jungblut ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Room Temperature ◽  
Decay Length ◽  
Antiferromagnetic Exchange ◽  
Interlayer Exchange Coupling ◽  
Magnetic Layers ◽  
Magnetic Analysis ◽  
Spacer Thickness ◽  
Interlayer Exchange ◽  
B2 Structure

ABSTRACTThe magnetic interlayer exchange coupling in Fe/Si-based thin film structures employing sputtered multilayers with variations of Si-alloyed Fe for the magnetic layers and Fe-alloyed Si spacers, as well as wedge-shaped MBE-grown Fe/Si/Fe sandwich samples has been systematically studied. From structural and magnetic analysis it is concluded that ultrathin Si and FexSi100-x (x < 50) spacer layers transform into a crystalline iron suicide with a composition close to Fe50Si50. The exchange coupling mediated by this metallic suicide is antiferromagnetic and depends on the spacer thickness in an exponential, i.e. non-oscillatory, manner with a universial characteristic decay length of 3–4 Å at room temperature. This observation can be qualitatively explained within the framework of a recent coupling theory on the premise that the FeSi interlayer has the metastable CsCl(B2)-structure.

scholarly journals Control of the noncollinear interlayer exchange coupling

2020 ◽  
Vol 6 (48) ◽  
pp. eabd8861
Author(s):  
Zachary R. Nunn ◽  
Claas Abert ◽  
Dieter Suess ◽  
Erol Girt
Keyword(s):  
Exchange Coupling ◽  
Magnetic Moments ◽  
Interlayer Exchange Coupling ◽  
Magnetic Structures ◽  
Spintronic Devices ◽  
Spacer Layer ◽  
Ferromagnetic Layers ◽  
Almost All ◽  
Interlayer Exchange ◽  
Coupling Angle

Interlayer exchange coupling in transition metal multilayers has been intensively studied for more than three decades and is incorporated into almost all spintronic devices. With the current spacer layers, only collinear magnetic alignment can be reliably achieved; however, controlling the coupling angle has the potential to markedly expand the use of interlayer exchange coupling. Here, we show that the coupling angle between the magnetic moments of two ferromagnetic layers can be precisely controlled by inserting a specially designed magnetic metallic spacer layer between them. The coupling angle is controlled solely by the composition of the spacer layer. Moreover, the biquadratic coupling strength, responsible for noncollinear alignment, is larger than that of current materials. These properties allow for the fabrication and study of not yet realized magnetic structures that have the potential to improve existing spintronic devices.

Magnetoresistance and Interlayer Exchange Coupling between Magnetic Layers in Fe–Mn/Ni–Fe–Co/Cu/Ni–Fe–Co Multilayers

1994 ◽  
Vol 33 (Part 1, No. 3A) ◽  
pp. 1327-1333 ◽  
Author(s):  
Katsumi Hoshino ◽  
Shin Noguchi ◽  
Ryoichi Nakatani ◽  
Hiroyuki Hoshiya ◽  
Yutaka Sugita
Keyword(s):  
Exchange Coupling ◽  
Interlayer Exchange Coupling ◽  
Magnetic Layers ◽  
Interlayer Exchange

Dependence of the interlayer exchange coupling on the constitution of the magnetic layers

1996 ◽  
Vol 79 (8) ◽  
pp. 4528 ◽  
Author(s):  
K. Ounadjela ◽  
Li Zhou ◽  
R. Stamps ◽  
P. Wigen ◽  
M. Hehn ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Interlayer Exchange Coupling ◽  
Magnetic Layers ◽  
Interlayer Exchange

Change of Interlayer Exchange Coupling between the Adjacent Magnetic Transition Metal Layers across a Rare-Earth Metal Layer by Hydrogenation

2006 ◽  
Vol 512 ◽  
pp. 177-182
Author(s):  
Yasushi Endo ◽  
Takanobu Sato ◽  
Tadashi Kaneko ◽  
Yoshio Kawamura ◽  
Masahiko Yamamoto
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Transition Metal ◽  
Rare Earth Metal ◽  
Exchange Coupling ◽  
Magnetic Transition ◽  
Earth Metal ◽  
Interlayer Exchange Coupling ◽  
The Difference ◽  
Interlayer Exchange

We have studied the change of the interlayer exchange coupling between the adjacent magnetic transition metal (TM) layers across a rare-earth metal (REM) layer by hydrogenation in TM (10 nm)/REM (t nm)/TM (10 nm) trilayers composed of Fe and Co as the TM and Y as the REM. In the case of the Fe as TM, the magnetic properties are sensitive to hydrogenation. In particular, the interlayer exchange coupling changes remarkably by hydrogenation. On the other hand, in the case of the Co as TM, the magnetic properties do not change by hydrogenation, and the change of the coupling by hydrogenation cannot be confirmed. The difference of the change of the coupling by hydrogenation between TM=Fe and TM=Co should be attributed to the difference of the TM/Y interface state.

The influence of interlayer exchange coupling on magnetic ordering in Fe/V superlattices

2009 ◽  
Vol 321 (9) ◽  
pp. 1214-1220 ◽  
Author(s):  
M. Marcellini ◽  
M. Pärnaste ◽  
B. Hjörvarsson ◽  
G. Nowak ◽  
H. Zabel
Keyword(s):  
Exchange Coupling ◽  
Magnetic Ordering ◽  
Interlayer Exchange Coupling ◽  
Interlayer Exchange
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