Publications
Publications
  • Unprecedentedly Wide Curie-Temperature Windows as Phase-Transition Design Platform for Tunable Magneto-Multifunctional Materials
    Zhiyang Wei, Enke Liu*, Yong Li,  Guizhou Xu,  Xiaoming Zhang,  Guodong Liu, Xuekui Xi,  Hongwei Zhang,  Wenhong Wang,  Guangheng Wu, and Xixiang Zhang

    科技简报

    运用“等结构合金化”原则和“居里温度窗口”方法,采用双变量方式,结合第一性原理计算,进行了一系列成分验证,最终获得了跨越40K至450K的超宽居里温度窗口。

     

    A series of unprecedentedly wide Curie-temperature windows (CTWs) between 40 and 450 K are realized by employing the isostructural alloying principle for the strongly coupled magnetostructural phase transitions in a single host system. 

  • Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys
    Zhiyang Wei, Enke Liu*, Yong Li, Xiaolei Han, Zhiwei Du, Hongzhi Luo, Guodong Liu, Xuekui Xi, Hongwei Zhang, Wenhong Wang, and Guangheng Wu

    实验观察到了典型的铁磁马氏体相变及其变磁转变行为,并发现了高达7000 ppm的温度诱发和磁场诱发多晶大应变。与传统Heusler合金相比,d-metal Heusler合金具有巨大的体积变化。

    The coherent decreasing trend in martensitic transformation temperature is observed. The magnetostructural martensitic transformation, producing a 5-fold modulated martensite, exhibits a large magneto-strain of 6900 ppm and a large volume discontinuity of −2.54%.

  • Windows open for highly tunable magnetostructural phase transitions
    Yong Li, Zhiyang Wei, Hongguo Zhang, Enke Liu*, Hongzhi Luo, Guodong Liu, Xuekui Xi, Shouguo Wang, Wenhong Wang, Ming Yue, Guangheng Wu, and Xixiang Zhang

    本工作中我们在等结构合金化的原理下,通过降低TCA,同时提高体系的Tt和TCM,建立了一系列覆盖低温、室内和高温的单相MnCoNiGeSi体系的宽居里温度窗。

     

    We have established a series of wide Curie-temperature windows that cover the temperature range from the cryogenic, through the room, and to the high temperatures in single-phase MnCoNiGeSi system.

     

  • Realization of multifunctional shape-memory ferromagnets in all-d-metal Heusler phases
    Zhiyang Wei, Enke Liu*, Jiahua Chen, Yong Li, Guodong Liu, Hongzhi Luo, Xuekui Xi, Hongwei Zhang, Wenhong Wang, and Guangheng Wu*

    本研究表明,过渡族d金属不仅有利于B2型Heusler相的形成,也可以建立强的铁磁耦合,从而为调控马氏体相变提供可能。本工作打破了对Heusler合金传统成相规律的认识,拓展了磁相变材料的设计思路和家族成员。

     

    Our present study from the view of d-d hybridization deepens the understanding on the phase formation, martensitic transformation, and magnetic coupling of multifunctional shape-memory ferromagnets.

  • Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets
    Enke Liu, Wenhong Wang*, Lin Feng, Wei Zhu, Guijiang Li, Jinglan Chen, Hongwei Zhang, Guangheng Wu, Chengbao Jiang, Huibin Xu, and Frank de Boer

    科技简报

    这一研究工作提出了以居里温度窗口调控相变的新思路,采用单一而有效的等结构合金化方法,同步实现了材料设计的多个目标,获得了具有优异性能的新型铁磁马氏体相变材料。 

     

    We have found that a stable PM–FM magnetostructural coupling in a broad temperature window, with tunable magnetoresponsive properties, can be obtained in martensitic phase-transition materials tailored by suitable substitution of Fe in MnNiGe. 

  • Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn1-xCoGe alloys
    Enke Liu, Wei Zhu, Lin Feng, Jinglan Chen, Wenhong Wang, Guangheng Wu*, Heyan Liu, Fanbin Meng, Hongzhi Luo, and Yiangxian Li

    这项工作表明,PM/ FM型马氏体具有大量磁化变换。此外,还发现了场诱发马氏体相变和较大的磁热效应。

     

    This work is shown that PM/FM-type  martensitic transformations with substantial magnetization changes can be realized . Also, a field-induced martensitic transformation and large magnetocaloric effect are reported. 

  • A coupling of martensitic and metamagnetic transitions with collective magneto-volume and table-like magnetocaloric effects
    Enke Liu, Zhiyang Wei, Yong Li, Guodong Liu, Hongzhi Luo, Wenhong Wang, Hongwei Zhang, and Guangheng Wu

  • A Centrosymmetric Hexagonal Magnet with Superstable Biskyrmion Magnetic Nanodomains in a Wide Temperature Range of 100–340 K
    Wenhong Wang*, Ying Zhang*, Guizhou Xu, Licong Peng, Bei Ding, Yue Wang, Zhipeng Hou, Xiaoming Zhang, Xiyang Li,  Enke Liu, Shouguo Wang, Jianwang Cai, Fangwei Wang, Jianqi Li, Fengxia Hu, Guangheng Wu, Baogen Shen, XiXiang Zhang

  • Electric Field Control of the Magnetocaloric Effect
    Yuanyuan Gong, Dunhui Wang*, Qingqi Cao, Enke Liu, Jian Liu, Youwei Du

  • Giant magnetocaloric effect in isostructural MnNiGe-CoNiGe system by establishing a Curie-temperature window
    Enke Liu, Hongguo Zhang, Guizhou Xu, Xiaoming Zhang, Ruisong Ma, Wenhong Wang, Jinglan Chen, Hongwei Zhang, Guangheng Wu*, Lin Feng, and Xixiang Zhang

  • Ni2In型六角MM′X铁磁马氏体相变材料及其研究进展
    刘恩克,王文洪,张宏伟,吴光恒*

  • Coherent tunneling and giant tunneling magnetoresistance in Co2FeAl/MgO/CoFe magnetic tunneling junctions.
    Wenhong Wang, Enke Liu, M. Kodzuka, H. Sukegawa, M. Wojcik, E. Jedryka, Guangheng Wu, K. Inomata, S. Mitani, K. Hono

  • Transition from Anomalous Hall Effect to Topological Hall Effect in Hexagonal Non-Collinear Magnet Mn3Ga
    Zhuhong Liu*, Yajiu Zhang, Guodong Liu, Bei Ding, Enke Liu*, Hasnain Mehdi Jafri, Zhipeng Hou, Wenhong Wang, Xingqiao Ma, and Guangheng Wu