Magnetic polarons in 2D antiferromagnetic structures

Z. Wilamowski; W. Jantsch; G. Hendorfer; H. Krenn; J. Sperl; W. Faschinger

doi:10.4028/www.scientific.net/msf.182-184.553

Magnetic polarons in 2D antiferromagnetic structures

Z. Wilamowski, W. Jantsch, G. Hendorfer, H. Krenn, J. Sperl, W. Faschinger

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

We investigate short period MnTe/CdTe superlattices by EPR, SQUID susceptometry and polarized photoluminescence. All three methods indicate the existence of super paramagnetic clusters in the antiferromagnetic (AF) phase. We explain this finding in terms of a local antiferromagnetic breakdown at the interfaces which is caused by the ferromagnetic sp-d exchange within localized and confined states. These polaronic effects are observed only up to a critical MnTe thickness of 5 monolayers per period. For this thickness, correlation of magnetic moments is observed.

Original language	English
Pages (from-to)	553-556
Number of pages	4
Journal	Materials Science Forum
Volume	182-184
DOIs	https://doi.org/10.4028/www.scientific.net/msf.182-184.553
Publication status	Published - 1995
Externally published	Yes
Event	Proceedings of the 4th International Workshop on Semimagnetic (Diluted Magnetic) Semiconductors - Linz, Austria Duration: 26 Sept 1994 → 28 Sept 1994

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title = "Magnetic polarons in 2D antiferromagnetic structures",

abstract = "We investigate short period MnTe/CdTe superlattices by EPR, SQUID susceptometry and polarized photoluminescence. All three methods indicate the existence of super paramagnetic clusters in the antiferromagnetic (AF) phase. We explain this finding in terms of a local antiferromagnetic breakdown at the interfaces which is caused by the ferromagnetic sp-d exchange within localized and confined states. These polaronic effects are observed only up to a critical MnTe thickness of 5 monolayers per period. For this thickness, correlation of magnetic moments is observed.",

author = "Z. Wilamowski and W. Jantsch and G. Hendorfer and H. Krenn and J. Sperl and W. Faschinger",

year = "1995",

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volume = "182-184",

pages = "553--556",

journal = "Materials Science Forum",

issn = "0255-5476",

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note = "Proceedings of the 4th International Workshop on Semimagnetic (Diluted Magnetic) Semiconductors ; Conference date: 26-09-1994 Through 28-09-1994",

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T1 - Magnetic polarons in 2D antiferromagnetic structures

AU - Wilamowski, Z.

AU - Jantsch, W.

AU - Hendorfer, G.

AU - Krenn, H.

AU - Sperl, J.

AU - Faschinger, W.

PY - 1995

Y1 - 1995

N2 - We investigate short period MnTe/CdTe superlattices by EPR, SQUID susceptometry and polarized photoluminescence. All three methods indicate the existence of super paramagnetic clusters in the antiferromagnetic (AF) phase. We explain this finding in terms of a local antiferromagnetic breakdown at the interfaces which is caused by the ferromagnetic sp-d exchange within localized and confined states. These polaronic effects are observed only up to a critical MnTe thickness of 5 monolayers per period. For this thickness, correlation of magnetic moments is observed.

AB - We investigate short period MnTe/CdTe superlattices by EPR, SQUID susceptometry and polarized photoluminescence. All three methods indicate the existence of super paramagnetic clusters in the antiferromagnetic (AF) phase. We explain this finding in terms of a local antiferromagnetic breakdown at the interfaces which is caused by the ferromagnetic sp-d exchange within localized and confined states. These polaronic effects are observed only up to a critical MnTe thickness of 5 monolayers per period. For this thickness, correlation of magnetic moments is observed.

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U2 - 10.4028/www.scientific.net/msf.182-184.553

DO - 10.4028/www.scientific.net/msf.182-184.553

M3 - Conference article

AN - SCOPUS:18744421371

SN - 0255-5476

VL - 182-184

SP - 553

EP - 556

JO - Materials Science Forum

JF - Materials Science Forum

T2 - Proceedings of the 4th International Workshop on Semimagnetic (Diluted Magnetic) Semiconductors

Y2 - 26 September 1994 through 28 September 1994

ER -

Magnetic polarons in 2D antiferromagnetic structures

Abstract

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