TY - JOUR
T1 - Complete and reversible magnetostructural transition driven by low magnetic field in multiferroic NiCoMnIn alloys
AU - Qu, Yuhai
AU - Sun, Xiaoming
AU - Gui, Wanyuan
AU - Li, Runguang
AU - Nie, Zhihua
AU - Gao, Zhiyong
AU - Cai, Wei
AU - Ren, Yang
AU - Wang, Yandong
AU - Cong, Daoyong
N1 - Publisher Copyright:
© 2022 Acta Materialia Inc.
PY - 2023/1/15
Y1 - 2023/1/15
N2 - Magnetic-field-induced first-order magnetostructural transition (MFI-FOMST) brings about an ample variety of intriguing magnetoresponsive effects including magnetocaloric effect, magnetoresistance and magnetostrain. Metamagnetic shape memory alloys (MSMAs) exhibit MFI-FOMST and thus giant magnetoresponsive effects, but the critical field for complete and reversible MFI-FOMST, (μ0∆H)min, is too high (usually >5 T), which has been a longstanding bottleneck for practical applications. Here, we successfully achieved complete and reversible MFI-FOMST under a low field of 1.5 T, which can be generated by permanent magnets, in a prototype MSMA. The significant reduction of (μ0∆H)min is realized by simultaneously enlarging the distance between Curie transition and magnetostructural transition and manipulating the geometric compatibility between the transforming phases. The low (μ0∆H)min provides a great opportunity for attaining low-field-induced large reversible magnetoresponsive effects. For instance, a large reversible magnetocaloric effect is achieved under 1.5 T. Our realization of low-field-induced complete and reversible first-order magnetostructural transition may push a significant step forward towards the practical use of MSMAs. This work is instructive for developing novel magnetic materials with low-field-actuated first-order phase transition for applications as magnetic actuators, magnetoresistors and solid-state refrigerants.
AB - Magnetic-field-induced first-order magnetostructural transition (MFI-FOMST) brings about an ample variety of intriguing magnetoresponsive effects including magnetocaloric effect, magnetoresistance and magnetostrain. Metamagnetic shape memory alloys (MSMAs) exhibit MFI-FOMST and thus giant magnetoresponsive effects, but the critical field for complete and reversible MFI-FOMST, (μ0∆H)min, is too high (usually >5 T), which has been a longstanding bottleneck for practical applications. Here, we successfully achieved complete and reversible MFI-FOMST under a low field of 1.5 T, which can be generated by permanent magnets, in a prototype MSMA. The significant reduction of (μ0∆H)min is realized by simultaneously enlarging the distance between Curie transition and magnetostructural transition and manipulating the geometric compatibility between the transforming phases. The low (μ0∆H)min provides a great opportunity for attaining low-field-induced large reversible magnetoresponsive effects. For instance, a large reversible magnetocaloric effect is achieved under 1.5 T. Our realization of low-field-induced complete and reversible first-order magnetostructural transition may push a significant step forward towards the practical use of MSMAs. This work is instructive for developing novel magnetic materials with low-field-actuated first-order phase transition for applications as magnetic actuators, magnetoresistors and solid-state refrigerants.
KW - Crystal structure
KW - Magnetic shape memory alloy
KW - Martensitic transformation
KW - Phase transformation
KW - Synchrotron X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=85142347429&partnerID=8YFLogxK
U2 - 10.1016/j.actamat.2022.118535
DO - 10.1016/j.actamat.2022.118535
M3 - Article
AN - SCOPUS:85142347429
SN - 1359-6454
VL - 243
JO - Acta Materialia
JF - Acta Materialia
M1 - 118535
ER -