Ultrastretchable Thermo‐ and Mechanochromic Fiber with Healable Metallic Conductivity

2021 ◽  
pp. 2100146
Author(s):  
Dongho Sin ◽  
Vijay K. Singh ◽  
Priyanuj Bhuyan ◽  
Yuwen Wei ◽  
Hye‐Min Lee ◽  
...  
Keyword(s):  
Metallic Conductivity

scholarly journals The Peter Day Series of Magnetic (Super)Conductors

2021 ◽  
Vol 7 (7) ◽  
pp. 93
Author(s):  
Samia Benmansour ◽  
Carlos J. Gómez-García
Keyword(s):  
Magnetic Properties ◽  
Electrical Properties ◽  
Metal Complexes ◽  
Long Range ◽  
Magnetic Ordering ◽  
Metallic Conductivity ◽  
Electrical And Magnetic Properties ◽  
Super Conducting ◽  
Paramagnetic Metals

Here, we review the different series of (super)conducting and magnetic radical salts prepared with organic donors of the tetrathiafulvalene (TTF) family and oxalato-based metal complexes (ox = oxalate = C2O42−). Although most of these radical salts have been prepared with the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF = ET), we also include all the salts prepared with other TTF-type donors such as tetrathiafulvalene (TTF), tetramethyl-tetrathiafulvalene (TM-TTF), bis(ethylenediseleno)tetrathiafulvalene (BEST), bis(ethylenedithio)tetraselenafulvalene (BETS) and 4,5bis((2S)-2-hydroxypropylthio)-4’,5’-(ethylenedithio)tetrathiafulvalene (DMPET). Most of the oxalate-based complexes are monomers of the type [MIII(C2O4)3]3−, [Ge(C2O4)3]2− or [Cu(C2O4)2]2−, but we also include the reported salts with [Fe2(C2O4)5]4− dimers, [MII(H2O)2[MIII(C2O4)3]2]4− trimers and homo- or heterometallic extended 2D layers such as [MIIMIII(C2O4)3]− and [MII2(C2O4)3]2−. We will present the different structural families and their magnetic properties (such as diamagnetism, paramagnetism, antiferromagnetism, ferromagnetism and even long-range magnetic ordering) that coexist with interesting electrical properties (such as semiconductivity, metallic conductivity and even superconductivity). We will focus on the electrical and magnetic properties of the so-called Day series formulated as β”-(BEDT-TTF)4[A+MIII(C2O4)3]·G, which represents the largest family of paramagnetic metals and superconductors reported to date, with more than fifty reported examples.

Novel S = 3/2 Triangular Antiferromagnet Ag2CrO2 with Metallic Conductivity

2011 ◽  
Vol 80 (12) ◽  
pp. 123703 ◽  
Author(s):  
Hiroyuki Yoshida ◽  
Eiji Takayama-Muromachi ◽  
Masaaki Isobe
Keyword(s):  
Metallic Conductivity

scholarly journals Metallic conductivity versus charge disproportionation in C60complexes with noninteger average charges on fullerene

2016 ◽  
Vol 1 (2) ◽  
pp. 323-330 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Salavat S. Khasanov ◽  
Manabu Ishikawa ◽  
Evgeniya I. Yudanova ◽  
Artem F. Shevchun ◽  
...  
Keyword(s):  
Metallic Conductivity ◽  
Charge Disproportionation

scholarly journals ON THE METALLIC CONDUCTIVITY OF DOPED POLYPYRROLE FILM

1984 ◽  
Vol 33 (12) ◽  
pp. 1771
Author(s):  
WANG PING ◽  
WAN MEI-XIANG ◽  
BI XIAN-TONG ◽  
YAO YOU-XIN ◽  
QIAN REN-YUAN
Keyword(s):  
Metallic Conductivity ◽  
Polypyrrole Film

Observation of Metallic Conductivity and Sharp Superconducting Transition at 19 K in Potassium-Doped Fulleride, C60, Single Crystal

1991 ◽  
Vol 20 (10) ◽  
pp. 1849-1852 ◽  
Author(s):  
Yusei Maruyama ◽  
Tamotsu Inabe ◽  
Hironori Ogata ◽  
Yohji Achiba ◽  
Shinzo Suzuki ◽  
...  
Keyword(s):  
Single Crystal ◽  
Superconducting Transition ◽  
Metallic Conductivity

Oxygen Stoichiometry and the High Tc Superconducting Oxides

MRS Bulletin ◽  
1989 ◽  
Vol 14 (1) ◽  
pp. 53-57 ◽  
Author(s):  
J-M. Tarascon ◽  
B.G. Bagley
Keyword(s):  
Optical Properties ◽  
Liquid Nitrogen ◽  
Broad Spectrum ◽  
Low Temperatures ◽  
Large Family ◽  
Oxygen Stoichiometry ◽  
High Tc ◽  
Metallic Conductivity ◽  
Superconducting Oxides ◽  
Technological Interest

Oxide compounds have been extensively studied through the years because they exhibit a broad spectrum of electrical, magnetic, and optical properties providing both scientific and technological interest. Most oxides are insulators, but a few of them (e.g., LiTi2O4 or BaPb1−x BixO3 show metallic conductivity and even superconductivity at low temperatures. The discovery of superconductivity at 35 K by Bednorz and Müller in the cuprate La-Ba-Cu-O system prompted the search for other high Tc compounds among this oxide family. Superconductivity above liquid nitrogen was then rapidly achieved with the Y-Ba-Cu-O system (Tc=90 K) and subsequently, with the Bi-Sr-Ca-Bu-O and Tl-Ba-Ca-Cu-O systems, Tc was raised to 110 K and then 125 K.A common feature of these new high Tc cuprates is that they belong to the large family of materials, termed perovskites, which have been studied over the years because of their ability to absorb or lose oxygen reversibly (i.e., for their nonstoichiometry in oxygen). It had been previously established in the field of superconductivity that Tc is extremely sensitive to compositional stoichiometry.

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