Anomalous bond lengthening in compressed magnetic doped semiconductor Ba(Zn0.95Mn0.05)2As2

Fei Sun; Yi Peng; Guoqiang Zhao; Xiancheng Wang; Zheng Deng; Changqing Jin

doi:10.1088/1674-4926/45/4/042101

Journal of Semiconductors, Volume. 45, Issue 4, 042101(2024)

Anomalous bond lengthening in compressed magnetic doped semiconductor Ba(Zn_0.95Mn_0.05)₂As₂

Fei Sun^1,2,3, Yi Peng^1,2, Guoqiang Zhao¹, Xiancheng Wang¹, Zheng Deng^1,2、*, and Changqing Jin^1,2、**

Author Affiliations

¹Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

²School of Physics, University of Chinese Academy of Sciences, Beijing 101408, China

³Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China

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Fig. 1. (Color online) (a) Crystal structure of Ba(Zn_0.95Mn_0.05)₂As₂, some important parameters are marked. (b) SXRD patterns of polycrystalline Ba(Zn_0.95Mn_0.05)₂As₂ at selected pressures. (c) Enlarged patterns of Fig. 1(b) with 2θ from 11° to 15°.

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Fig. 2. (Color online) The Rietveld refinements of SXRD pattern at (a) 1.0 and (b) 43.4 GPa. (c) Lattice constants versus pressures. The blue dash line indicates the transition pressure. (d) Lattice volume versus pressures and the fitting at low and high pressures.

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Fig. 3. (Color online) The pressure dependence of (a) Zn/Mn−As bond length, (b) two As−Zn/Mn−As bond angles, and (c) interlayer As−As distance. The blue dash lines are eye-guides. (d) The scheme of Ba-, Zn/Mn- and As-layers in Ba(Zn_0.95Mn_0.05)₂As₂ lattice.

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Fig. 4. (Color online) Evolution of crystal structures of Ba(Zn_0.95Mn_0.05)₂As₂ with increasing pressures. The important parameters are marked.

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Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, R_wp and R_p.

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Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, R_wp and R_p.

Pressure(GPa)	a(Å)	c(Å)	As(0, 0, z)	R_wp(%)	R_p(%)
0	4.1240	13.5680	0.3635	2.59	1.55
1.0	4.1068	13.4615	0.3697	2.69	1.56
1.7	4.0917	13.4071	0.3703	2.72	1.61
3.7	4.0499	13.2437	0.3736	2.93	1.92
4.7	4.0302	13.16851	0.3743	2.54	1.43
5.9	4.0106	13.0854	0.3807	2.76	1.58
7.4	3.9844	12.9825	0.3983	2.98	1.81
8.8	3.9648	12.9128	0.3996	2.93	1.80
10.2	3.9449	12.8479	0.4047	2.97	1.70
12.2	3.9234	12.7547	0.4070	3.04	1.8
13.6	3.9100	12.6986	0.4087	3.07	1.79
14.9	3.8959	12.6501	0.4064	2.92	1.70
16.9	3.8774	12.5440	0.4149	3.27	1.93
18.2	3.8677	12.5036	0.4038	2.92	1.86
19.6	3.8603	12.4208	0.4076	2.74	1.80
20.4	3.8546	12.3727	0.4084	2.70	1.78
21.5	3.8488	12.3306	0.4069	2.60	1.71
22.7	3.8429	12.2556	0.4154	2.98	1.83
23.9	3.8360	12.2176	0.4064	2.83	1.67
25.1	3.8325	12.1458	0.4090	2.59	1.69
26.5	3.8294	12.0579	0.41379	2.72	1.63
28.2	3.8211	11.9818	0.4105	2.59	1.71
29.9	3.8201	11.8649	0.41130	2.69	1.66
32.0	3.8149	11.7569	0.4159	2.65	1.72
34.1	3.8148	11.6020	0.4069	2.81	1.75
35.9	3.8136	11.4903	0.4040	2.70	1.64
38.0	3.8117	11.3794	0.4084	2.35	1.55
40.1	3.8033	11.3211	0.4020	3.22	1.88
41.8	3.8023	11.2388	0.4045	3.05	1.82
43.4	3.7963	11.1814	0.4035	2.55	1.68
46.9	3.7929	11.0458	0.4027	2.43	1.63

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Fei Sun, Yi Peng, Guoqiang Zhao, Xiancheng Wang, Zheng Deng, Changqing Jin. Anomalous bond lengthening in compressed magnetic doped semiconductor Ba(Zn_0.95Mn_0.05)₂As₂[J]. Journal of Semiconductors, 2024, 45(4): 042101

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Paper Information

Category: Articles

Received: Nov. 21, 2023

Accepted: --

Published Online: Jun. 21, 2024

The Author Email: Zheng Deng (ZDeng), Changqing Jin (CQJin)

DOI:10.1088/1674-4926/45/4/042101

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, Rwp and Rp.

Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, Rwp and Rp.

Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, R_wp and R_p.

Table 1. The results of Rietveld refinements under all the pressures: the lattice parameters, R_wp and R_p.