Melting, thermal expansion, and phase transitions of iron at high pressures

1990 ◽  
Vol 95 (B13) ◽  
pp. 21731 ◽  
Author(s):  
R. Boehler ◽  
N. von Bargen ◽  
A. Chopelas
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
High Pressures

PHASE TRANSITIONS AND CRITICAL PHENOMENA IN THE CRYSTAL OF А2IVВ2VС6VI GROUP UNDER HIGH PRESSURES

2000 ◽  
Vol 6 (0) ◽  
pp. 76-93
Author(s):  
О. І. Герзанич ◽  
О. Г. Сливка ◽  
П. П. Гуранич ◽  
В. С. Шуста ◽  
В. М. Кедюлич ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Critical Phenomena ◽  
High Pressures

scholarly journals Phase transitions beyond post-perovskite in NaMgF3 to 160 GPa

2019 ◽  
Vol 116 (39) ◽  
pp. 19324-19329 ◽  
Author(s):  
Rajkrishna Dutta ◽  
Eran Greenberg ◽  
Vitali B. Prakapenka ◽  
Thomas S. Duffy
Keyword(s):  
Phase Transitions ◽  
Diamond Anvil Cell ◽  
Extrasolar Planets ◽  
High Pressures ◽  
Model System ◽  
Similar Sequence ◽  
Deep Interior ◽  
Diamond Anvil ◽  
Binary Compounds ◽  
Pressure Phase

Neighborite, NaMgF3, is used as a model system for understanding phase transitions in ABX3 systems (e.g., MgSiO3) at high pressures. Here we report diamond anvil cell experiments that identify the following phases in NaMgF3 with compression to 162 GPa: NaMgF3 (perovskite) → NaMgF3 (post-perovskite) → NaMgF3 (Sb2S3-type) → NaF (B2-type) + NaMg2F5 (P21/c) → NaF (B2) + MgF2 (cotunnite-type). Our results demonstrate the existence of an Sb2S3-type post-post-perovskite ABX3 phase. We also experimentally demonstrate the formation of the P21/c AB2X5 phase which has been proposed theoretically to be a common high-pressure phase in ABX3 systems. Our study provides an experimental observation of the full sequence of phase transitions from perovskite to post-perovskite to post-post-perovskite followed by 2-stage breakdown to binary compounds. Notably, a similar sequence of transitions is predicted to occur in MgSiO3 at ultrahigh pressures, where it has implications for the mineralogy and dynamics in the deep interior of large, rocky extrasolar planets.

Structural and magnetic phase transitions occurring in Pr0.7Sr0.3MnO3 manganite at high pressures

JETP Letters ◽  
2013 ◽  
Vol 97 (9) ◽  
pp. 540-545 ◽  
Author(s):  
N. T. Dang ◽  
D. P. Kozlenko ◽  
S. E. Kichanov ◽  
L. S. Dubrovinsky ◽  
Z. Jirák ◽  
...  
Keyword(s):  
Phase Transitions ◽  
High Pressures ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions

Stress and temperature-induced phase transitions and thermal expansion in (001)-cut PMN-31PT single crystal

2015 ◽  
Vol 652 ◽  
pp. 287-291 ◽  
Author(s):  
Xiaojuan Li ◽  
Zengzhe Xi ◽  
Peng Liu ◽  
Wei Long ◽  
Pinyang Fang
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
Single Crystal

Thermal expansion and phase transitions in K1 − x Rb x BSi2O6 leucite borosilicate solid solutions

2008 ◽  
Vol 34 (4) ◽  
pp. 436-442 ◽  
Author(s):  
M. I. Georgievskaya ◽  
R. S. Bubnova ◽  
S. K. Filatov ◽  
V. L. Ugolkov
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
Solid Solutions

scholarly journals Thermal Expansion and Phase Transitions of Ammonium Nitrate

1967 ◽  
Vol 70 (10) ◽  
pp. 1633-1637 ◽  
Author(s):  
Masanori NAGATANI ◽  
Makoto HAYAMA ◽  
Noboru YAMAZOE ◽  
Tetsuro SEIYAMA
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
Ammonium Nitrate

Phase Transitions in Pb2(NiW)O6 Synthesized under High Pressures

1968 ◽  
Vol 24 (4) ◽  
pp. 957-958 ◽  
Author(s):  
Schōichiro Nomura ◽  
Takehiko Nakagawa ◽  
Osamu Fukunaga ◽  
Shinroku Saito
Keyword(s):  
Phase Transitions ◽  
High Pressures

Magnetic phase transitions in CrBe12under high pressures

1982 ◽  
Vol 26 (7) ◽  
pp. 3878-3881 ◽  
Author(s):  
B. J. Jin ◽  
T. H. Lin ◽  
C. W. Chu ◽  
Y. S. Shen ◽  
P. H. Schmidt
Keyword(s):  
Phase Transitions ◽  
High Pressures ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions

scholarly journals Phase transitions in the O2-H2O system at high pressures

2005 ◽  
Vol 61 (a1) ◽  
pp. c467-c467
Author(s):  
A. Kurnosov ◽  
L. Dubrovinskiy ◽  
A. Kuznetsov
Keyword(s):  
Phase Transitions ◽  
High Pressures
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