Tuning the range, magnitude, and sign of the thermal expansion in intermetallic Mn3(Zn,M)x N(

Wenwen Wang

¹

,

Liangliang Chu

²

,

Qingrong Yao

³

et al.

Frustrated Triangular Magnetic Structures of Mn3ZnN: Applications in Thermal Expansion

“…19,27 The noncollinear Γ 5g AFM magnetic structure clarified by Fruchart 19 [see Figure 1(a)] was adopted for the simulation of Mn 3 ZnN. 47 Table 1 lists the structural and shown in Figure 1(b) and Γ 5g AFM phases] from 140 K to 177 K. 48 Herein, the collinear AFM phase is marked as M PTE in Figure 1(b) as the positive thermal expansion (PTE) behavior was observed within this magnetic structure.…”

“…22,23 More importantly, the antiperovsktie compounds with noncollinear Γ 5g antiferromagnetic (AFM) structure where the Mn local magnetic moments on the (111) plane form clockwise or counterclockwise configuration show attractive behaviors, including giant barocaloric, flexomagnetic, piezomagnetic, Invar-like, and negative thermal expansion (NTE) etc. [24][25][26][27][28][29] Among these manganese antiperovskites, Mn 3 ZnN with Γ 5g AFM phase, which has the strong spin-lattice coupling, is one of the most promising material as a single compound displaying zero thermal expansion (ZTE) from the perspective of functionality and cost. 27 …”

“…[24][25][26][27][28][29] Among these manganese antiperovskites, Mn 3 ZnN with Γ 5g AFM phase, which has the strong spin-lattice coupling, is one of the most promising material as a single compound displaying zero thermal expansion (ZTE) from the perspective of functionality and cost. 27 …”

Effects of carbon deficiency on the magnetic interactions in GaCMn3, a critical behavior study

“…In the past years, the Mn-based antiperovskites AXMn 3 (A: metal or semiconducting elements, X: C or N) has attracted increasing interest because of the observation of various functionalities, such as giant magnetoresistance (GMR) [1][2][3], large magnetocaloric effect (MCE) [4][5][6][7], negative or zero thermal expansion (NTE or ZTE) [8][9][10][11][12], nearly zero temperature coefficient of resistance (TCR) [13][14][15][16], and giant magnetostriction (MS) [17,18]. AXMn 3 usually has a simple cubic crystal structure (space group, Pm m 3 − ), in which element A locates at the corner positions, X at the body center, and Mn at the face centers [19].…”

A first-principles study on the negative thermal expansion material: Mn3(A0.5B0.5)N (A=Cu, Zn, Ag, or Cd; B=Si, Ge, or Sn)

“…Magnetic antiperovskite nitride Mn 3 (Cu 1-x Ge x )N, 3 a member of the NTE materials, has recently attracted significant attentions, [4][5][6][7][8][9][10][11][12][13][14][15] due to its large isotropic negative thermal expansion over a wide range around the room temperature. Experimentally, the NTE was thought to be caused by the local lattice distortion induced by Ge dopants.…”