Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction

Stobiecki T, Kanak J, Wrona J, Reiss G, Brueckl H (2007)
In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. 316. ELSEVIER SCIENCE BV: E998-E1001.

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Abstract
Spin-valve magnetic tunnel junctions (SV-MTJs) with the structure: substrate Si(100)/SiO2 47 nm/ buffer layers /IrMn 12 nm/CoFe 15 nm/Al-O 1.4 nm/NiFe 3 nm/Ta 5 nm were prepared with four different buffers: (a) Cu 25 nm, (b) Ta 5 nm/Cu 25 nm, (c) Ta 5 nm/Cu 25 nm/Ta 5 nm/Cu 5 nm and (d) Ta 5 nm/Cu 25 nm/Ta 5 nm/NiFe 2 nm/Cu 5 nm in order to investigate crystal texture of the MTJs. The junctions were characterized by XRD theta-2 theta scans and rocking curve (omega scans). The multilayer stack is textured in columnar-like fashion, which produces roughness. The texture and the roughness modified strongly the tunnel magnetoresistance (TMR), interlayer Neel and the exchange bias coupling fields in the SV-MTJs. The design of buffer layers allows to optimize the exchange coupling and tunneling parameters for magnetoelectronics devices. (c) 2007 Elsevier B.V. All rights reserved.
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Stobiecki T, Kanak J, Wrona J, Reiss G, Brueckl H. Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction. In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. Vol 316. ELSEVIER SCIENCE BV; 2007: E998-E1001.
Stobiecki, T., Kanak, J., Wrona, J., Reiss, G., & Brueckl, H. (2007). Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 316(2), E998-E1001.
Stobiecki, T., Kanak, J., Wrona, J., Reiss, G., and Brueckl, H. (2007). “Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction” in JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol. 316, (ELSEVIER SCIENCE BV), E998-E1001.
Stobiecki, T., et al., 2007. Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction. In JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. no.316 ELSEVIER SCIENCE BV, pp. E998-E1001.
T. Stobiecki, et al., “Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction”, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol. 316, ELSEVIER SCIENCE BV, 2007, pp.E998-E1001.
Stobiecki, T., Kanak, J., Wrona, J., Reiss, G., Brueckl, H.: Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. 316, p. E998-E1001. ELSEVIER SCIENCE BV (2007).
Stobiecki, T., Kanak, J., Wrona, J., Reiss, Günter, and Brueckl, H. “Microstructure, texture and magnetic coupling parameters of Ir-Mn-based magnetic tunnel junction”. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. ELSEVIER SCIENCE BV, 2007.Vol. 316. E998-E1001.
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