Electrostatic tip-sample interactions currently represent the main limitation to accurate quantitative analysis of magnetic force microscopy (MFM) data. Controlled magnetization MFM (CM-MFM) represents a smart solution to overcome this limitation as it allows one to identify electrostatic artifacts and to subtract them from standard MFM images, thus enabling the quantitative investigation of magnetic properties of materials at the nanometer scale. CM-MFM, however, requires not only the magnetization, but also the in situ accurate demagnetization of the MFM probe. In particular, the latter represents a crucial step for the complete removal of electrostatic artifacts. In this work, we describe two different methods to depolarize the MFM tip, based on the application of the coercive remanent magnetic field of the tip and on a damped alternating magnetic field, respectively. The two techniques are escribed and compared to emphasize their specific advantages and limitations.

In Situ control and modification of the probe magnetization state for accurate magnetic force microscopy / Angeloni, Livia; Passeri, Daniele; Natali, Marco; Reggente, Melania; Anelli, Emanuele; Bettucci, Andrea; Mantovani, Diego; Rossi, Marco. - STAMPA. - 1873:(2017), p. 020008. ((Intervento presentato al convegno 1st NanoInnovation 2016 tenutosi a ita nel 2016 [10.1063/1.4997137].

In Situ control and modification of the probe magnetization state for accurate magnetic force microscopy

ANGELONI, LIVIA
Primo
;
PASSERI, Daniele
Secondo
;
NATALI, MARCO;REGGENTE, MELANIA;ANELLI, Emanuele;BETTUCCI, Andrea;ROSSI, Marco
2017

Abstract

Electrostatic tip-sample interactions currently represent the main limitation to accurate quantitative analysis of magnetic force microscopy (MFM) data. Controlled magnetization MFM (CM-MFM) represents a smart solution to overcome this limitation as it allows one to identify electrostatic artifacts and to subtract them from standard MFM images, thus enabling the quantitative investigation of magnetic properties of materials at the nanometer scale. CM-MFM, however, requires not only the magnetization, but also the in situ accurate demagnetization of the MFM probe. In particular, the latter represents a crucial step for the complete removal of electrostatic artifacts. In this work, we describe two different methods to depolarize the MFM tip, based on the application of the coercive remanent magnetic field of the tip and on a damped alternating magnetic field, respectively. The two techniques are escribed and compared to emphasize their specific advantages and limitations.
1st NanoInnovation 2016
Physics and Astronomy (all)
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
In Situ control and modification of the probe magnetization state for accurate magnetic force microscopy / Angeloni, Livia; Passeri, Daniele; Natali, Marco; Reggente, Melania; Anelli, Emanuele; Bettucci, Andrea; Mantovani, Diego; Rossi, Marco. - STAMPA. - 1873:(2017), p. 020008. ((Intervento presentato al convegno 1st NanoInnovation 2016 tenutosi a ita nel 2016 [10.1063/1.4997137].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1011880
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