
Solid‐state refrigeration has received widespread attention recently because of its high refrigeration efficiency and environmental protection. Compared with other solid‐state refrigeration technologies, elastocaloric effects have great application potential. However, the current temperature change of elastocaloric effects is still low. This work explores the change law of phase transition temperature of ferroelectric materials by applying the external stress based on the thermodynamic calculation. It can be found that ferroelectric materials’ positive and negative elastocaloric effects can peak at the same temperature, so here a device to combine the positive and negative elastocaloric effects of Ba0.7Sr0.3TiO3 and BaZr0.015Ti0.085O3 is designed. This device can achieve a ΔT of 3.18 K near room temperature under applied stress of 200 MPa, which is twice as large as that of 1.4 K in BCZTO‐Fe under the same stress condition. And it can be raised to 4.1 K after applying an electric field of 10 MV m−1. It is the first time to combine positive and negative elastocaloric effects to achieve high cooling near room temperature, which provides a new solution for efficient cooling near room temperature.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 1 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
