Novel structural modulation in the ambient-pressure sulfur-based organic superconductor .beta.-(BEDT-TTF)2I3: origin and effects on its electrical conductivity

1985 ◽  
Vol 107 (22) ◽  
pp. 6184-6191 ◽  
Author(s):  
Peter C. W. Leung ◽  
Thomas J. Emge ◽  
Mark A. Beno ◽  
Hau H. Wang ◽  
Jack M. Williams ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Ambient Pressure ◽  
Organic Superconductor ◽  
Structural Modulation

ChemInform Abstract: NOVEL STRUCTURAL MODULATION IN THE FIRST AMBIENT-PRESSURE SULFUR-BASED ORGANIC SUPERCONDUCTOR (BEDT-TTF)2I3

1985 ◽  
Vol 16 (12) ◽  
Author(s):  
P. C. W. LEUNG ◽  
T. J. EMGE ◽  
M. A. BENO ◽  
H. H. WANG ◽  
J. M. WILLIAMS ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Organic Superconductor ◽  
Structural Modulation

Novel structural modulation in the first ambient-pressure sulfur-based organic superconductor (BEDT-TTF)2I3

1984 ◽  
Vol 106 (24) ◽  
pp. 7644-7646 ◽  
Author(s):  
Peter C. W. Leung ◽  
Thomas J. Emge ◽  
Mark A. Beno ◽  
Hau H. Wang ◽  
Jack M. Williams ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Organic Superconductor ◽  
Structural Modulation

Electrical conductivity of an anhydrous cytochrome c3 film as a function of temperature and ambient pressure

1980 ◽  
Vol 73 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Yusuke Nakahara ◽  
Keisaku Kimura ◽  
Hiroo Inokuchi ◽  
Tatsuhiko Yagi
Keyword(s):  
Electrical Conductivity ◽  
Ambient Pressure ◽  
Cytochrome C3

Syntheses and Properties of k-Phase Organic Superconductors

1992 ◽  
Vol 247 ◽  
Author(s):  
H. Hau Wang ◽  
K. D. Carlson ◽  
U. Geiser ◽  
A. M. Kini ◽  
A. J. Schultz ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ambient Pressure ◽  
Density Wave ◽  
Spin Density Wave ◽  
Organic Superconductors ◽  
Organic Superconductor ◽  
X Ray ◽  
New Class ◽  
Structural Differences ◽  
Similarities And Differences

ABSTRACTThe syntheses and physical properties of K-(ET)2CU[N(CN)2]X (X = Br and Cl) are summarized. The K-(ET)2Cu [N(CN)2] Br salt is the highest Tc radical-cation based ambient pressure organic superconductor (Tc = 11.6 K), and the K-(ET)2CU [N(CN)2] C1 salt becomes a superconductor at even higher Tc under 0.3 kbar hydrostatic pressure (Tc = 12.8 K). The similarities and differences between K-(ET)2Cu[N(CN)2]Br and K-(ET)2CU(NCS)2 (TC = 10.4 K) are presented. The X-ray structures at 127 K reveal that the S-S contacts shorten between ET dimers in the former compound while the S-S contacts shorten within dimers in the latter. The differences in their ESR linewidth behavior is also explained in terms of the structural differences. A semiconducting compound, (ET)Cu[N(CN)2]2, isolated during K-(ET)2Cu[N(CN)2]Cl synthesis is also reported. The ESR measurements of the K-(ET)2Cu[N(CN)2]Cl salt indicate that the phase transition near 40 K is similar to the spin density wave transition in (TMTSF)2SbF6. A new class of organic superconductors, K-(ET)2CU2(CN)3 and K-(ET)2Cu2(CN)3.δBrδ, is reported with Tc's of 2.8 K (1.5 kbar) and 2.6 K (1 kbar), respectively.

Infrared properties of the ambient pressure organic superconductor (BEDT-TTF)2I3

1985 ◽  
Vol 54 (11) ◽  
pp. 937-941 ◽  
Author(s):  
C.S. Jacobsen ◽  
J.M. Williams ◽  
Hau H. Wang
Keyword(s):  
Ambient Pressure ◽  
Organic Superconductor

A new ambient-pressure organic superconductor: (BEDT-TTF)2(NH4)Hg(SCN)4

1990 ◽  
Vol 166 (1-2) ◽  
pp. 57-61 ◽  
Author(s):  
H.H. Wang ◽  
K.D. Carlson ◽  
U. Geiser ◽  
W.K. Kwok ◽  
M.D. Vashon ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Organic Superconductor

DESIGN OF A SAMPLE HOLDER FOR LOW TEMPERATURE ELECTRICAL CONDUCTIVITY MEASUREMENTS

2013 ◽  
Vol 22 ◽  
pp. 741-744 ◽  
Author(s):  
YADUNATH SINGH
Keyword(s):  
Electrical Conductivity ◽  
Low Temperature ◽  
Electric Fields ◽  
Low Cost ◽  
Ambient Pressure ◽  
Liquid Nitrogen Temperature ◽  
Sample Holder ◽  
Ac Electrical Conductivity ◽  
Switching Phenomenon ◽  
Wide Range

Both DC and AC electrical conductivity of materials provide a number of valuable informationon the nature of current carriers, 3-D effects, scattering by defects and impurities, formation of CDW, soliton propagation, non – linear and switching phenomenon and other characters pertaining to these compounds. These measurements are therefore carried out over a wide range of temperature, pressure, electric fields and impurity concentrations. Besides these, the low temperature studies of the materials are performed to determine Optical and Magnetic properties and etc. Therefore, a suitable sample holder is required to perform these studies with low temperature variations. In this paper, we report a design of such a suitable and simple sample holder, which can work up to liquid nitrogen temperature (77 K). This model is easy to fabricate, low cost, more efficient with less wastage in terms of liquid gases than other models. This model can be used for both low temperature dependent electrical conductivity at ambient pressure and clamped high pressure measurements within the given range

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