Investigations on the electronic, structural, magnetic properties related to shape-memory behavior in Ti2CoX (X=Al, Ga, In)》.pdfVIP

Materials Research Bulletin 62 (2015) 212–216 Contents lists available at ScienceDirect Materials Research Bulletin journal h om epage: /locate/mat resbu Investigations on the electronic, structural, magnetic properties related to shape-memory behavior in Ti2CoX (X =Al, Ga, In) Xiao-Ping Wei a,*, Yan-Dong Chu a, Xiao-Wei Sun a, Yan E a, Jian-Bo Deng b, Yong-Zhong Xing c a The School of Mathematics and Physics, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of China b Department of Physics, LanZhou University, Lanzhou 730000, People’s Republic of China c Department of Physics, Tianshui Normal University, Tianshui 741000, People’s Republic of China A R T I C L E I N F O A B S T R A C T Article history: Using the full-potential local orbital minimum-basis method, we have performed a systematic Received 11 March 2014 investigations on the electronic, structural, and magnetic properties related to shape memory Received in revised form 2 October 2014 applications for Ti2CoX (X =Al, Ga, In) alloys. Our results confirm that these alloys are half-metallic Accepted 14 November 2014 ferromagnets with total magnetic moment of 2mB per formula unit in austenite phase, and undergo a Available online 18 November 2014 martensitic transformation at low temperatures. The relative stabilities of the martensitic phases differ considerably between Ti2CoX (X =Al, Ga, In). Details of the e