DEVELOPMENT OF A PLASTIC DIAMOND ANVIL CELL FOR HIGH PRESSURE MAGNETO-PHOTOLUMINESCENCE IN PULSED HIGH MAGNETIC FIELDS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3843-3846 ◽  
Author(s):  
Y. H. MATSUDA ◽  
K. UCHIDA ◽  
K. ONO ◽  
ZIWU JI ◽  
S. TAKEYAMA
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Exchange Interactions ◽  
High Magnetic Fields ◽  
Multiple Quantum ◽  
Reinforced Plastic ◽  
Zeeman Shift ◽  
Diamond Anvil

A diamond anvil cell (DAC) made of reinforced plastic has been developed for magneto-photoluminescence experiments in pulsed high magnetic fields. Our DAC has a standard and simple structure equipped with a stainless steel gasket. We have made magneto-photoluminescence experiments of CdTe / Cd 0.8 Mn 0.2 Te multiple quantum wells up to 41 T at 4.2 K in the pressure range 0 to 2.3 GPa. We found that the effect of the eddy current heating of the gasket can be negligible small when we use the pulsed field whose duration is a few tens of milliseconds or longer. We have also found that the exciton Zeeman shift strongly depends on the pressure, which can be a manifestation of the enhancement of the sp-d and d-d exchange interactions in the Gd 0.8 Mn 0.2 Te layer by applying high pressures.

Exchange interactions in CdMnTe/CdMgTe quantum wells under high magnetic fields

2002 ◽  
Vol 13 (2-4) ◽  
pp. 568-571
Author(s):  
T Yasuhira ◽  
K Uchida ◽  
Y.H Matsuda ◽  
N Miura ◽  
S Kuroda ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Exchange Interactions ◽  
High Magnetic Fields

A ceramic‐type diamond anvil cell for optical measurements at high pressure in pulsed high magnetic fields

1991 ◽  
Vol 62 (12) ◽  
pp. 2988-2990 ◽  
Author(s):  
K. Yamamoto ◽  
S. Endo ◽  
A. Yamagishi ◽  
H. Mikami ◽  
H. Hori ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Fields ◽  
Diamond Anvil Cell ◽  
Optical Measurements ◽  
High Magnetic Fields ◽  
Diamond Anvil

Magneto-optical study of CdTe/Cd1−TxMnxTe multiple quantum wells under high magnetic fields

1994 ◽  
Vol 201 ◽  
pp. 415-418 ◽  
Author(s):  
Shinji Kuroda ◽  
Kazutoshi Kojima ◽  
Kôji Kobayashi ◽  
Yutaka Shirai ◽  
Kôki Takita ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Multiple Quantum Wells ◽  
High Magnetic Fields ◽  
Multiple Quantum ◽  
Optical Study

New diamond anvil cell for optical and transport measurements under high magnetic fields up to 60 T

2008 ◽  
Vol 28 (4) ◽  
pp. 627-631 ◽  
Author(s):  
Marius Millot ◽  
Sylvie George ◽  
Jean-Marc Broto ◽  
Bernard Couzinet ◽  
Jean-Claude Chervin ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Diamond Anvil Cell ◽  
High Magnetic Fields ◽  
Transport Measurements ◽  
Diamond Anvil

OBSERVATION OF PHOTOLUMINESCENCE FROM MAGNETO-PLASMAS UNDER INTENSE FEMTOSECOND EXCITATION IN STRONG MAGNETIC FIELDS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3775-3780
Author(s):  
Y. D. JHO ◽  
X. WANG ◽  
G. D. SANDERS ◽  
D. H. REITZE ◽  
C. J. STANTON ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Landau Levels ◽  
Emission Lines ◽  
Multiple Quantum Wells ◽  
High Magnetic Fields ◽  
Multiple Quantum ◽  
Threshold Intensity ◽  
Strong Magnetic Fields ◽  
Narrow Emission

We report results on measurements of magneto-photoluminescence at 4.2 K in In x Ga 1-x As multiple quantum wells in high magnetic fields (25 Tesla) and laser intensities (25 GW/cm 2) using 150 fs pulses. Novel magneto-plasma phenomena are observed, including strikingly narrow emission lines of Landau levels above a threshold intensity and the suppression of exciton-mixing-induced anti-crossings.

Diamond anvil cell for measurements in high magnetic fields

1990 ◽  
Vol 5 (1-6) ◽  
pp. 874-876 ◽  
Author(s):  
J. J. Scholtz ◽  
A. Driessen ◽  
R. V.D. Berg ◽  
H. V. Groen ◽  
H. Verhoog ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Diamond Anvil Cell ◽  
High Magnetic Fields ◽  
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.

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