Long-range atomic ordering and magnetic properties of Co1−xPtx/SiO2 granular films

2000 ◽  
Vol 87 (9) ◽  
pp. 6947-6949 ◽  
Author(s):  
Chen Chen ◽  
Osamu Kitakami ◽  
Satoshi Okamoto ◽  
Yutaka Shimada
Keyword(s):  
Magnetic Properties ◽  
Long Range ◽  
Atomic Ordering ◽  
Granular Films

Atomic ordering and magnetic properties in the Ni45Co5Mn36.7In13.3 metamagnetic shape memory alloy

2008 ◽  
Vol 93 (23) ◽  
pp. 232503 ◽  
Author(s):  
W. Ito ◽  
M. Nagasako ◽  
R. Y. Umetsu ◽  
R. Kainuma ◽  
T. Kanomata ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Atomic Ordering

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.

The influence of film thickness on magnetoresistance and magnetic properties of FeAg granular films

1995 ◽  
Vol 145 (1-2) ◽  
pp. 239-242 ◽  
Author(s):  
Chengtao Yu ◽  
Yizhong Wang ◽  
Wuyan Lai ◽  
Zhenxi Wang
Keyword(s):  
Magnetic Properties ◽  
Film Thickness ◽  
Granular Films

Magnetic properties of Co nanoparticle granular films capped with Pt

2007 ◽  
Vol 316 (2) ◽  
pp. e9-e12 ◽  
Author(s):  
J. Bartolomé ◽  
L.M. García ◽  
F. Bartolomé ◽  
F. Luis ◽  
F. Petroff ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Granular Films

scholarly journals Spontaneous atomic ordering and magnetism in epitaxially stabilized double-perovskites

2012 ◽  
Vol 1454 ◽  
pp. 3-13
Author(s):  
Akira Ohtomo ◽  
Suvankar Chakraverty ◽  
Hisanori Mashiko ◽  
Takayoshi Oshima ◽  
Masashi Kawasaki
Keyword(s):  
Magnetic Properties ◽  
Transition Metals ◽  
Double Perovskite ◽  
Perovskite Oxides ◽  
Epitaxial Films ◽  
Atomic Ordering ◽  
Magnetic Ground State ◽  
Half Metallic ◽  
Optical Band Gaps

ABSTRACTWe report on the atomic ordering of B-site transition-metals and magnetic properties in double-perovskite oxides, La2CrFeO6 (LCFO) and La2VMnO6 (LVMO), which have never been reported to exist in ordered forms. These double-perovskite oxides are particularly interesting because of possible ferromagnetism (expected from the Kanamori-Goodenough rule for LCFO) and half-metallic antiferromagnetism (predicted for LVMO). Using pulsed-laser deposition technique with single solid-solution targets, we have prepared epitaxial films in ordered forms. Despite similar ionic characters of constituent transition-metals in each compound, the maximum B-site order attained was surprisingly high, ∼90% for LCFO and ∼80% for LVMO, suggesting a significant role of epitaxial stabilization in the spontaneous ordering process. Magnetization and valence state characterizations revealed that the magnetic ground state of both compounds was coincidently ferrimagnetic with saturation magnetization of ∼2μBper formula unit, unlike those predicted theoretically. In addition, they were found to be insulating with optical band-gaps of 1.6 eV and 0.9 eV for LCFO and LVMO, respectively. Our results present a wide opportunity to explore novel magnetic properties of binary transition-metal perovskites upon epitaxial stabilization of the ordered phase.

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