Weak ferromagnetism in textured Zn1-x(TM)xO thin films

H. Schmidt; M. Diaconu; H. Hochmuth; M. Lorenz; A. Setzer; P. Esquinazi; A. Pöppl; D. Spemann; K. W. Nielsen; R. Gross; G. Wagner; M. Grundmann

doi:10.1016/j.spmi.2005.08.059

Weak ferromagnetism in textured Zn_1-x(TM)_xO thin films

H. Schmidt
, M. Diaconu
, H. Hochmuth
, M. Lorenz
, A. Setzer
, P. Esquinazi
, A. Pöppl
, D. Spemann
, K. W. Nielsen
, R. Gross
, G. Wagner
, M. Grundmann

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

19 Scopus citations

Abstract

Room-temperature ferromagnetic Zn_1-x(TM)_xO semiconductor thin films have been grown by pulsed laser deposition (PLD) on c-plane sapphire substrates and the effect of the substitution of Zn ²⁺ ions by transition metal ions (Mn²⁺ or Ti²⁺) has been investigated. In contrast to ZnTiO thin films, the grain size of the ZnMnO thin films can be controlled in a wide range by the PLD growth conditions. The magnetic properties of the Zn_1-x(TM)_xO films have been investigated by a superconducting quantum interference device (SQUID). For semi-insulating ZnMnO films with an optimized grain size, we observed a weak ferromagnetism for temperatures up to 400 K [M. Diaconu, H. Schmidt, H. Hochmuth, M. Lorenz, G. Benndorf, J. Lenzner, D. Spemann, A. Setzer, K.-W. Nielsen, P. Esquinazi, M. Grundmann, Thin Solid Films 486 (2005) 117-121], while the ZnTiO films were only paramagnetic or superparamagnetic. This is expected with respect to the micromagnetic model.

Original language	English
Pages (from-to)	334-339
Number of pages	6
Journal	Superlattices and Microstructures
Volume	39
Issue number	1-4
DOIs	https://doi.org/10.1016/j.spmi.2005.08.059
State	Published - Jan 2006
Externally published	Yes
Event	E-MRS 2005 Symposium G: ZnO and Related Materials Part 2 - Duration: 31 May 2005 → 3 Jun 2005

Keywords

Dilute magnetic semiconductors
Micromagnetism
Mosaicity
ZnO

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10.1016/j.spmi.2005.08.059

Cite this

@article{b27953ebeb1645f994f32e738f05a83e,

title = "Weak ferromagnetism in textured Zn1-x(TM)xO thin films",

abstract = "Room-temperature ferromagnetic Zn1-x(TM)xO semiconductor thin films have been grown by pulsed laser deposition (PLD) on c-plane sapphire substrates and the effect of the substitution of Zn 2+ ions by transition metal ions (Mn2+ or Ti2+) has been investigated. In contrast to ZnTiO thin films, the grain size of the ZnMnO thin films can be controlled in a wide range by the PLD growth conditions. The magnetic properties of the Zn1-x(TM)xO films have been investigated by a superconducting quantum interference device (SQUID). For semi-insulating ZnMnO films with an optimized grain size, we observed a weak ferromagnetism for temperatures up to 400 K [M. Diaconu, H. Schmidt, H. Hochmuth, M. Lorenz, G. Benndorf, J. Lenzner, D. Spemann, A. Setzer, K.-W. Nielsen, P. Esquinazi, M. Grundmann, Thin Solid Films 486 (2005) 117-121], while the ZnTiO films were only paramagnetic or superparamagnetic. This is expected with respect to the micromagnetic model.",

keywords = "Dilute magnetic semiconductors, Micromagnetism, Mosaicity, ZnO",

author = "H. Schmidt and M. Diaconu and H. Hochmuth and M. Lorenz and A. Setzer and P. Esquinazi and A. P{\"o}ppl and D. Spemann and Nielsen, \{K. W.\} and R. Gross and G. Wagner and M. Grundmann",

year = "2006",

month = jan,

doi = "10.1016/j.spmi.2005.08.059",

language = "English",

volume = "39",

pages = "334--339",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

number = "1-4",

note = "E-MRS 2005 Symposium G: ZnO and Related Materials Part 2 ; Conference date: 31-05-2005 Through 03-06-2005",

}

TY - JOUR

T1 - Weak ferromagnetism in textured Zn1-x(TM)xO thin films

AU - Schmidt, H.

AU - Diaconu, M.

AU - Hochmuth, H.

AU - Lorenz, M.

AU - Setzer, A.

AU - Esquinazi, P.

AU - Pöppl, A.

AU - Spemann, D.

AU - Nielsen, K. W.

AU - Gross, R.

AU - Wagner, G.

AU - Grundmann, M.

PY - 2006/1

Y1 - 2006/1

N2 - Room-temperature ferromagnetic Zn1-x(TM)xO semiconductor thin films have been grown by pulsed laser deposition (PLD) on c-plane sapphire substrates and the effect of the substitution of Zn 2+ ions by transition metal ions (Mn2+ or Ti2+) has been investigated. In contrast to ZnTiO thin films, the grain size of the ZnMnO thin films can be controlled in a wide range by the PLD growth conditions. The magnetic properties of the Zn1-x(TM)xO films have been investigated by a superconducting quantum interference device (SQUID). For semi-insulating ZnMnO films with an optimized grain size, we observed a weak ferromagnetism for temperatures up to 400 K [M. Diaconu, H. Schmidt, H. Hochmuth, M. Lorenz, G. Benndorf, J. Lenzner, D. Spemann, A. Setzer, K.-W. Nielsen, P. Esquinazi, M. Grundmann, Thin Solid Films 486 (2005) 117-121], while the ZnTiO films were only paramagnetic or superparamagnetic. This is expected with respect to the micromagnetic model.

AB - Room-temperature ferromagnetic Zn1-x(TM)xO semiconductor thin films have been grown by pulsed laser deposition (PLD) on c-plane sapphire substrates and the effect of the substitution of Zn 2+ ions by transition metal ions (Mn2+ or Ti2+) has been investigated. In contrast to ZnTiO thin films, the grain size of the ZnMnO thin films can be controlled in a wide range by the PLD growth conditions. The magnetic properties of the Zn1-x(TM)xO films have been investigated by a superconducting quantum interference device (SQUID). For semi-insulating ZnMnO films with an optimized grain size, we observed a weak ferromagnetism for temperatures up to 400 K [M. Diaconu, H. Schmidt, H. Hochmuth, M. Lorenz, G. Benndorf, J. Lenzner, D. Spemann, A. Setzer, K.-W. Nielsen, P. Esquinazi, M. Grundmann, Thin Solid Films 486 (2005) 117-121], while the ZnTiO films were only paramagnetic or superparamagnetic. This is expected with respect to the micromagnetic model.

KW - Dilute magnetic semiconductors

KW - Micromagnetism

KW - Mosaicity

KW - ZnO

UR - https://www.scopus.com/pages/publications/29344465996

U2 - 10.1016/j.spmi.2005.08.059

DO - 10.1016/j.spmi.2005.08.059

M3 - Conference article

AN - SCOPUS:29344465996

SN - 0749-6036

VL - 39

SP - 334

EP - 339

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 1-4

T2 - E-MRS 2005 Symposium G: ZnO and Related Materials Part 2

Y2 - 31 May 2005 through 3 June 2005

ER -

Weak ferromagnetism in textured Zn_1-x(TM)_xO thin films

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