ELECTRICAL MEASUREMENTS WITHIN A GASKETED DIAMOND ANVIL CELL, PHOTOCONDUCTIVITY OF GaAs UP TO 7 GPa

1984 ◽  
Vol 45 (C8) ◽  
pp. C8-383-C8-386
Author(s):  
J. Gonzalez ◽  
G. Weill
Keyword(s):  
Diamond Anvil Cell ◽  
Electrical Measurements ◽  
Diamond Anvil

scholarly journals Sub-Kelvin magnetic and electrical measurements in a diamond anvil cell with in situ tunability

2015 ◽  
Vol 86 (9) ◽  
pp. 093901 ◽  
Author(s):  
A. Palmer ◽  
D. M. Silevitch ◽  
Yejun Feng ◽  
Yishu Wang ◽  
R. Jaramillo ◽  
...  
Keyword(s):  
Diamond Anvil Cell ◽  
Electrical Measurements ◽  
Diamond Anvil

scholarly journals Note: Novel diamond anvil cell for electrical measurements using boron-doped metallic diamond electrodes

2016 ◽  
Vol 87 (7) ◽  
pp. 076103 ◽  
Author(s):  
R. Matsumoto ◽  
Y. Sasama ◽  
M. Fujioka ◽  
T. Irifune ◽  
M. Tanaka ◽  
...  
Keyword(s):  
Diamond Anvil Cell ◽  
Electrical Measurements ◽  
Diamond Electrodes ◽  
Boron Doped ◽  
Diamond Anvil

Laminated gaskets for absorption and electrical measurements in the diamond anvil cell

1992 ◽  
Vol 63 (12) ◽  
pp. 5760-5763 ◽  
Author(s):  
D. Leong ◽  
H. Feyrit ◽  
A. D. Prins ◽  
V. A. Wilkinson ◽  
K. P. Homewood ◽  
...  
Keyword(s):  
Diamond Anvil Cell ◽  
Electrical Measurements ◽  
Diamond Anvil

scholarly journals Bulk modulus of H2O across the ice VII–ice X transition measured by time-resolved x-ray diffraction in dynamic diamond anvil cell experiments

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
A. S. J. Méndez ◽  
F. Trybel ◽  
R. J. Husband ◽  
G. Steinle-Neumann ◽  
H.-P. Liermann ◽  
...  
Keyword(s):  
Bulk Modulus ◽  
Diamond Anvil Cell ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Diamond Anvil

High temperature diamond anvil cell with the laser heating

1989 ◽  
Vol 1 (5-6) ◽  
pp. 337-340 ◽  
Author(s):  
M. I. Eremets ◽  
V. V. Struzhkin ◽  
I. A. Trojan
Keyword(s):  
High Temperature ◽  
Laser Heating ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

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.

scholarly journals The thermal conductivity of the Earth's core and implications for its thermal and compositional evolution

2020 ◽  
Author(s):  
Kenji Ohta ◽  
Kei Hirose
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Thermal History ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Iron Alloys ◽  
Compositional Evolution ◽  
The Earth ◽  
Diamond Anvil ◽  
High Pressures And Temperatures

Abstract Precise determinations of the thermal conductivity of iron alloys at high pressures and temperatures are essential for understanding the thermal history and dynamics of the metallic cores of the Earth. We review relevant high-pressure experiments using a diamond-anvil cell and discuss implications of high core conductivity for its thermal and compositional evolution.

PHASE TRANSITION IN LAYERED PEROVSKITE LIKE MANGANATE Ca3Mn2O7 UNDER HIGH PRESSURE

2001 ◽  
Vol 15 (18) ◽  
pp. 2491-2497 ◽  
Author(s):  
J. L. ZHU ◽  
L. C. CHEN ◽  
R. C. YU ◽  
F. Y. LI ◽  
J. LIU ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Diamond Anvil Cell ◽  
The Other ◽  
Layered Perovskite ◽  
X Ray Diffraction ◽  
Two Phase ◽  
X Ray ◽  
Diamond Anvil

In situ high pressure energy dispersive X-ray diffraction measurements on layered perovskite-like manganate Ca 3 Mn 2 O 7 under pressures up to 35 GPa have been performed by using diamond anvil cell with synchrotron radiation. The results show that the structure of layered perovskite-like manganate Ca 3 Mn 2 O 7 is unstable under pressure due to the easy compression of NaCl-type blocks. The structure of Ca 3 Mn 2 O 7 underwent two phase transitions under pressures in the range of 0~35 GPa. One was at about 1.3 GPa with the crystal structure changing from tetragonal to orthorhombic. The other was at about 9.5 GPa with the crystal structure changing from orthorhombic back to another tetragonal.

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