Temperature-dependent tunneling electroresistance in Pt/BaTiO 3/SrRuO3 ferroelectric tunnel junctions
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 132913 |
Journal / Publication | Applied Physics Letters |
Volume | 103 |
Issue number | 13 |
Publication status | Published - 23 Sept 2013 |
Externally published | Yes |
Link(s)
Abstract
Tunneling electroresistance of Pt/BaTiO3/SrRuO3 ferroelectric tunnel junctions is investigated as a function of temperature. Two distinct resistance states that are dependent on polarization direction in the BaTiO3 barrier layer and bipolar resistance switching are observed at various temperatures from 10 to 290 K. The ON/OFF current ratio of Pt/BaTiO3/SrRuO3 tunnel junctions increases monotonically with decreasing temperature above 50 K and saturates below 50 K. The enhanced tunneling electroresistance at low temperatures can be ascribed to the suppression of thermally assisted indirect tunneling, which is less sensitive to the polarization reversal of BaTiO3 compared to the direct tunneling. © 2013 AIP Publishing LLC.
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Citation Format(s)
Temperature-dependent tunneling electroresistance in Pt/BaTiO 3/SrRuO3 ferroelectric tunnel junctions. / Wen, Zheng; You, Lu; Wang, Junling et al.
In: Applied Physics Letters, Vol. 103, No. 13, 132913, 23.09.2013.
In: Applied Physics Letters, Vol. 103, No. 13, 132913, 23.09.2013.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review