Advances in methods to obtain and characterise room temperature magnetic ZnO

Israel Lorite; Benjamin Straube; Hendrik Ohldag; Parmod Kumar; Manuel Villafuerte; Pablo Esquinazi; Claudia Rodriguez Torres; Silvia Perez De Heluani; V.N. Antonov; L.V. Bekenov; Arthur Ernst; Martin Hoffmann; Sanjeev K. Nayak; Waheed A. Adeagbo; G. Fischer; Wolfram Hergert

doi:10.1063/1.4913763

Advances in methods to obtain and characterise room temperature magnetic ZnO

Israel Lorite
, Benjamin Straube
, Hendrik Ohldag
, Parmod Kumar
, Manuel Villafuerte
, Pablo Esquinazi
, Claudia Rodriguez Torres
, Silvia Perez De Heluani
, V.N. Antonov
, L.V. Bekenov
, Arthur Ernst
, Martin Hoffmann
, Sanjeev K. Nayak
, Waheed A. Adeagbo
, G. Fischer
, Wolfram Hergert

Department of Many Particle Systems

Research output: Contribution to journal › Article › peer-review

Abstract

We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 mu m were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order. (C) 2015 AIP Publishing LLC.

Original language	English
Article number	082406
Pages (from-to)	082406
Number of pages	6
Journal	Applied Physics Letters
Volume	106
Issue number	8
DOIs	https://doi.org/10.1063/1.4913763
Publication status	Published - 23 Feb 2015

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103 Physics, Astronomy

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10.1063/1.4913763

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Lorite, I., Straube, B., Ohldag, H., Kumar, P., Villafuerte, M., Esquinazi, P., Torres, C. R., Perez De Heluani, S., Antonov, V. N., Bekenov, L. V., Ernst, A., Hoffmann, M., Nayak, S. K., Adeagbo, W. A., Fischer, G., & Hergert, W. (2015). Advances in methods to obtain and characterise room temperature magnetic ZnO. Applied Physics Letters, 106(8), 082406. Article 082406. https://doi.org/10.1063/1.4913763

@article{b687d50fc8ba461ca61eae6443fd440d,

title = "Advances in methods to obtain and characterise room temperature magnetic ZnO",

abstract = "We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 mu m were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order. (C) 2015 AIP Publishing LLC.",

author = "Israel Lorite and Benjamin Straube and Hendrik Ohldag and Parmod Kumar and Manuel Villafuerte and Pablo Esquinazi and Torres, \{Claudia Rodriguez\} and \{Perez De Heluani\}, Silvia and V.N. Antonov and L.V. Bekenov and Arthur Ernst and Martin Hoffmann and Nayak, \{Sanjeev K.\} and Adeagbo, \{Waheed A.\} and G. Fischer and Wolfram Hergert",

year = "2015",

month = feb,

day = "23",

doi = "10.1063/1.4913763",

language = "English",

volume = "106",

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journal = "Applied Physics Letters",

issn = "0003-6951",

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Lorite, I, Straube, B, Ohldag, H, Kumar, P, Villafuerte, M, Esquinazi, P, Torres, CR, Perez De Heluani, S, Antonov, VN, Bekenov, LV, Ernst, A, Hoffmann, M, Nayak, SK, Adeagbo, WA, Fischer, G & Hergert, W 2015, 'Advances in methods to obtain and characterise room temperature magnetic ZnO', Applied Physics Letters, vol. 106, no. 8, 082406, pp. 082406. https://doi.org/10.1063/1.4913763

TY - JOUR

T1 - Advances in methods to obtain and characterise room temperature magnetic ZnO

AU - Lorite, Israel

AU - Straube, Benjamin

AU - Ohldag, Hendrik

AU - Kumar, Parmod

AU - Villafuerte, Manuel

AU - Esquinazi, Pablo

AU - Torres, Claudia Rodriguez

AU - Perez De Heluani, Silvia

AU - Antonov, V.N.

AU - Bekenov, L.V.

AU - Ernst, Arthur

AU - Hoffmann, Martin

AU - Nayak, Sanjeev K.

AU - Adeagbo, Waheed A.

AU - Fischer, G.

AU - Hergert, Wolfram

PY - 2015/2/23

Y1 - 2015/2/23

N2 - We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 mu m were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order. (C) 2015 AIP Publishing LLC.

AB - We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 mu m were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order. (C) 2015 AIP Publishing LLC.

UR - https://www.scopus.com/pages/publications/84923884564

U2 - 10.1063/1.4913763

DO - 10.1063/1.4913763

M3 - Article

SN - 0003-6951

VL - 106

SP - 082406

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 082406

ER -

Advances in methods to obtain and characterise room temperature magnetic ZnO

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