Details

Autor(en) / Beteiligte

• Wen, Jiahong
• Zhao, Xiaoyu
• Li, Qian
• Xiong, Yuanqiang
• Wang, Dunhui
• Du, Youwei

Titel

Nonvolatile Control of Magnetocaloric Operating Temperature by Low Voltage

Ist Teil von

• ACS applied materials & interfaces, 2018-05, Vol.10 (17), p.15298-15303

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The limited operating temperature is the main obstacle for the practical applications of magnetic refrigeration. In this work, the voltage control of magnetocaloric effect (MCE) is investigated in a La0.7Sr0.3MnO3 (LSMO)/CeO2/Pt device. Different from the conventional method of volatile manipulating MCE by large-voltage-induced strain, nonvolatile manipulation of magnetocaloric operating temperature with good stability is realized in the LSMO film by applying low voltages of less than 2.3 V. The experimental results demonstrate that the magnetic entropy change peak temperature for the LSMO film can be extended from 302 to 312 K by voltage. This nonvolatile effect can be well-understood with the resistive switching mechanism and has potential in promoting microscale refrigeration technology.