Limits...
Nonvolatile electric-field control of magnetization in a Y-type hexaferrite.

Shen S, Chai Y, Sun Y - Sci Rep (2015)

Bottom Line: The magnetoelectric effects in multiferroic materials enable the mutual control of electric polarization by a magnetic field and magnetization by an electric field.Here we demonstrate the prominent direct and converse magnetoelectric effects in the Y-type hexaferrite BaSrCoZnFe11AlO22 single crystal.These diverse magnetoelectric effects with large coefficients highlight the promise of hexaferrites as potential multiferroic materials.

View Article: PubMed Central - PubMed

Affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

ABSTRACT
The magnetoelectric effects in multiferroic materials enable the mutual control of electric polarization by a magnetic field and magnetization by an electric field. Nonvolatile electric-field control of magnetization is extremely important for information storage applications, but has been rarely realized in single-phase multiferroic materials. Here we demonstrate the prominent direct and converse magnetoelectric effects in the Y-type hexaferrite BaSrCoZnFe11AlO22 single crystal. The electric polarization due to conical magnetic structure can be totally reversed by a small magnetic field, giving rise to large magnetoelectric coefficients of 6000 and 4000 ps/m at 100 and 200 K, respectively. The ab-plane magnetization can be controlled by electric fields with a large hysteresis, leading to nonvolatile change of magnetization. In addition, the reversal of magnetization by electric fields is also realized at 200 K. These diverse magnetoelectric effects with large coefficients highlight the promise of hexaferrites as potential multiferroic materials.

No MeSH data available.


Characterization of the Y-type hexaferrite BaSrCoZnFe11AlO22.(a) The schematic crystal structure of Y-type hexaferrite. (b) The X-ray diffraction pattern of the Y-type hexaferrite single crystal sample along [001] direction. Inset of panel (b) shows the schematic experimental configuration. (c) Temperature dependent magnetization with H = 100 Oe along [100] axis. Before the measurements, H = 10 kOe was applied at 10 K to induce a metastable commensurate transverse cone state, then H was ramped down to 100 Oe. The Inset shows the derivative dM/dT as a function of temperature.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4317709&req=5

f1: Characterization of the Y-type hexaferrite BaSrCoZnFe11AlO22.(a) The schematic crystal structure of Y-type hexaferrite. (b) The X-ray diffraction pattern of the Y-type hexaferrite single crystal sample along [001] direction. Inset of panel (b) shows the schematic experimental configuration. (c) Temperature dependent magnetization with H = 100 Oe along [100] axis. Before the measurements, H = 10 kOe was applied at 10 K to induce a metastable commensurate transverse cone state, then H was ramped down to 100 Oe. The Inset shows the derivative dM/dT as a function of temperature.

Mentions: As shown in Fig. 1a, the Y-type hexaferrite has a stacked layer structure with the space group R-3m. Our prepared single crystals of BaSrCoZnFe11AlO22 were characterized by single crystal x-ray diffraction (XRD), and the room-temperature XRD pattern (Fig. 1b) suggests that our specimen belongs to Y-type hexaferrite with c = 4.32 nm.


Nonvolatile electric-field control of magnetization in a Y-type hexaferrite.

Shen S, Chai Y, Sun Y - Sci Rep (2015)

Characterization of the Y-type hexaferrite BaSrCoZnFe11AlO22.(a) The schematic crystal structure of Y-type hexaferrite. (b) The X-ray diffraction pattern of the Y-type hexaferrite single crystal sample along [001] direction. Inset of panel (b) shows the schematic experimental configuration. (c) Temperature dependent magnetization with H = 100 Oe along [100] axis. Before the measurements, H = 10 kOe was applied at 10 K to induce a metastable commensurate transverse cone state, then H was ramped down to 100 Oe. The Inset shows the derivative dM/dT as a function of temperature.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4317709&req=5

f1: Characterization of the Y-type hexaferrite BaSrCoZnFe11AlO22.(a) The schematic crystal structure of Y-type hexaferrite. (b) The X-ray diffraction pattern of the Y-type hexaferrite single crystal sample along [001] direction. Inset of panel (b) shows the schematic experimental configuration. (c) Temperature dependent magnetization with H = 100 Oe along [100] axis. Before the measurements, H = 10 kOe was applied at 10 K to induce a metastable commensurate transverse cone state, then H was ramped down to 100 Oe. The Inset shows the derivative dM/dT as a function of temperature.
Mentions: As shown in Fig. 1a, the Y-type hexaferrite has a stacked layer structure with the space group R-3m. Our prepared single crystals of BaSrCoZnFe11AlO22 were characterized by single crystal x-ray diffraction (XRD), and the room-temperature XRD pattern (Fig. 1b) suggests that our specimen belongs to Y-type hexaferrite with c = 4.32 nm.

Bottom Line: The magnetoelectric effects in multiferroic materials enable the mutual control of electric polarization by a magnetic field and magnetization by an electric field.Here we demonstrate the prominent direct and converse magnetoelectric effects in the Y-type hexaferrite BaSrCoZnFe11AlO22 single crystal.These diverse magnetoelectric effects with large coefficients highlight the promise of hexaferrites as potential multiferroic materials.

View Article: PubMed Central - PubMed

Affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

ABSTRACT
The magnetoelectric effects in multiferroic materials enable the mutual control of electric polarization by a magnetic field and magnetization by an electric field. Nonvolatile electric-field control of magnetization is extremely important for information storage applications, but has been rarely realized in single-phase multiferroic materials. Here we demonstrate the prominent direct and converse magnetoelectric effects in the Y-type hexaferrite BaSrCoZnFe11AlO22 single crystal. The electric polarization due to conical magnetic structure can be totally reversed by a small magnetic field, giving rise to large magnetoelectric coefficients of 6000 and 4000 ps/m at 100 and 200 K, respectively. The ab-plane magnetization can be controlled by electric fields with a large hysteresis, leading to nonvolatile change of magnetization. In addition, the reversal of magnetization by electric fields is also realized at 200 K. These diverse magnetoelectric effects with large coefficients highlight the promise of hexaferrites as potential multiferroic materials.

No MeSH data available.