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Title: Prolonged mixed phase induced by high pressure in MnRuP

Abstract

Here, hexagonally structured MnRuP was studied under high pressure up to 35 GPa from 5 to 300 K using synchrotron x-ray diffraction. We observed that a partial phase transition from hexagonal to orthorhombic symmetry started at 11 GPa. The new and denser orthorhombic phase coexisted with its parent phase for an unusually long pressure range, Δ P ≈ 50GPa. We attribute this structural transformation to a magnetic origin, where a decisive criterion for the boundary of the mixed phase lies in the different distances between the Mn-Mn atoms. In addition, our theoretical study shows that the orthorhombic phase of MnRuP remains steady even at very high pressures up to ~250GPa, when it should transform to a new tetragonal phase.

Authors:
 [1];  [2];  [3];  [3];  [4];  [4];  [5];  [5];  [5];  [5];  [2];  [5];  [6]
  1. Center for High Pressure Science and Technology Advanced Research, Beijing (China); Lithuanian Univ. of Educational Sciences, Vilnius (Lithuania)
  2. Chinese Academy of Sciences (CAS), Beijing (China)
  3. Carnegie Institution of Washington, Argonne, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Center for High Pressure Science and Technology Advanced Research, Beijing (China)
  6. Center for High Pressure Science and Technology Advanced Research, Beijing (China); Carnegie Institution of Washington, Argonne, IL (United States); Carnegie Institution of Washington, Washington, D.C. (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1471589
Alternate Identifier(s):
OSTI ID: 1454372
Grant/Contract Number:  
AC02-06CH11357; NA0001974; FG02-99ER45775
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 21; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MnRuP; high-pressure; mixed phases; structure prediction; x-ray diffraction

Citation Formats

Sereika, Raimundas, Wu, Wei, Park, Changyong, Kenney-Benson, Curtis, Brewe, Dale L., Heald, Steve M., Zhang, Jianbo, Yesudhas, Sorb, Deng, Hongshan, Chen, Bijuan, Luo, Jianlin, Ding, Yang, and Mao, Ho-kwang. Prolonged mixed phase induced by high pressure in MnRuP. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.214103.
Sereika, Raimundas, Wu, Wei, Park, Changyong, Kenney-Benson, Curtis, Brewe, Dale L., Heald, Steve M., Zhang, Jianbo, Yesudhas, Sorb, Deng, Hongshan, Chen, Bijuan, Luo, Jianlin, Ding, Yang, & Mao, Ho-kwang. Prolonged mixed phase induced by high pressure in MnRuP. United States. https://doi.org/10.1103/PhysRevB.97.214103
Sereika, Raimundas, Wu, Wei, Park, Changyong, Kenney-Benson, Curtis, Brewe, Dale L., Heald, Steve M., Zhang, Jianbo, Yesudhas, Sorb, Deng, Hongshan, Chen, Bijuan, Luo, Jianlin, Ding, Yang, and Mao, Ho-kwang. Fri . "Prolonged mixed phase induced by high pressure in MnRuP". United States. https://doi.org/10.1103/PhysRevB.97.214103. https://www.osti.gov/servlets/purl/1471589.
@article{osti_1471589,
title = {Prolonged mixed phase induced by high pressure in MnRuP},
author = {Sereika, Raimundas and Wu, Wei and Park, Changyong and Kenney-Benson, Curtis and Brewe, Dale L. and Heald, Steve M. and Zhang, Jianbo and Yesudhas, Sorb and Deng, Hongshan and Chen, Bijuan and Luo, Jianlin and Ding, Yang and Mao, Ho-kwang},
abstractNote = {Here, hexagonally structured MnRuP was studied under high pressure up to 35 GPa from 5 to 300 K using synchrotron x-ray diffraction. We observed that a partial phase transition from hexagonal to orthorhombic symmetry started at 11 GPa. The new and denser orthorhombic phase coexisted with its parent phase for an unusually long pressure range, ΔP ≈ 50GPa. We attribute this structural transformation to a magnetic origin, where a decisive criterion for the boundary of the mixed phase lies in the different distances between the Mn-Mn atoms. In addition, our theoretical study shows that the orthorhombic phase of MnRuP remains steady even at very high pressures up to ~250GPa, when it should transform to a new tetragonal phase.},
doi = {10.1103/PhysRevB.97.214103},
url = {https://www.osti.gov/biblio/1471589}, journal = {Physical Review B},
issn = {2469-9950},
number = 21,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

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