A spin-1/2 gapped compound CdCu2(SeO3)2Cl2 with ladder structure

2021 ◽  
Author(s):  
Mengsi Zhang ◽  
Meiyan Cui ◽  
Zhiying Zhao ◽  
Xing Huang ◽  
Zhangzhen He
Keyword(s):  
Spin Ladder ◽  
Ladder Structure ◽  
High Tc ◽  
Low Dimensional

The exploration of two-leg spin-ladder materials is a great challenge to chemical community since it is one of the most ideal models for the study of low-dimensional magnetism and high-Tc...

scholarly journals Polaronic Emergent Phases in Manganite-based Heterostructures

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 489
Author(s):  
Vasily Moshnyaga ◽  
Konrad Samwer
Keyword(s):  
Electron Spin ◽  
Short Range ◽  
Dead Layer ◽  
Perovskite Manganites ◽  
Functional Oxides ◽  
Strong Electron ◽  
High Tc ◽  
Rational Explanation ◽  
Jahn Teller ◽  
Low Dimensional

Transition metal functional oxides, e.g., perovskite manganites, with strong electron, spin and lattice correlations, are well-known for different phase transitions and field-induced colossal effects at the phase transition. Recently, the interfaces between dissimilar perovskites were shown to be a promising concept for the search of emerging phases with novel functionalities. We demonstrate that the properties of manganite films are effectively controlled by low dimensional emerging phases at intrinsic and extrinsic interfaces and appeared as a result of symmetry breaking. The examples include correlated Jahn–Teller polarons in the phase-separated (La1−yPry)0.7Ca0.3MnO3, electron-rich Jahn–Teller-distorted surface or “dead” layer in La0.7Sr0.3MnO3, electric-field-induced healing of “dead” layer as an origin of resistance switching effect, and high-TC ferromagnetic emerging phase at the SrMnO3/LaMnO3 interface in superlattices. These 2D polaronic phases with short-range electron, spin, and lattice reconstructions could be extremely sensitive to external fields, thus, providing a rational explanation of colossal effects in perovskite manganites.

Magnetic and 1H-NMR Spectroscopic Studies of [Ph(NH3)](18-crown-6) [Ni(dmit)2] Having Molecular Spin Ladder Structure

2003 ◽  
Vol 137 (1-3) ◽  
pp. 1279-1280 ◽  
Author(s):  
Sadafumi Nishihara ◽  
Tomoyuki Akutagawa ◽  
Tatsuo Hasegawa ◽  
Takayoshi Nakamura ◽  
Shigeki Fujiyama ◽  
...  
Keyword(s):  
1H Nmr ◽  
Spectroscopic Studies ◽  
Spin Ladder ◽  
Ladder Structure ◽  
Molecular Spin

Novel approaches to crystallize materials with narrow liquidus lines: application to spin ladder compound La4+4nCu8+2nO14+8n (n=2,3) and high-Tc cuprate Bi-2223

2001 ◽  
Vol 229 (1-4) ◽  
pp. 316-320 ◽  
Author(s):  
T Watanabe ◽  
C Sekar ◽  
H Shibata ◽  
T Fujii ◽  
A Matsuda ◽  
...  
Keyword(s):  
Spin Ladder ◽  
High Tc ◽  
Novel Approaches

EXPLORATION AND SEARCH ON NEW HIGH TC SUPERCONDUCTIVE MATERIALS

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3320-3323
Author(s):  
DE-HUA LIN ◽  
DA-JIAN CUI ◽  
BO LI
Keyword(s):  
Cuprate Superconductors ◽  
Experimental Studies ◽  
Hexagonal Structure ◽  
Dimensional System ◽  
High Tc ◽  
Intrinsic Factors ◽  
Phonon Mechanism ◽  
Two Dimensional System ◽  
Low Dimensional ◽  
Theoretical Analyses

On the basis of Fan and Malozovsky theory, which had discussed the non-phonon mechanism of the layered Fermi liquid superconductivity, and of the experimental studies and theoretical analyses obtained by Zhang et al. as well as other scientists, we have analyzed and discussed the extrinsic and intrinsic factors of affecting the transition temperature Tc of cuprate superconductors. We also will present some possible approaches to explore new high Tc superconductive materials, and pay more attention to the non-traditional phonon mechanism, low dimensional or quasi two-dimensional system, and hexagonal structure materials, etc.

Systematic NMR studies of high-Tc and two-leg spin-ladder systems

1998 ◽  
Vol 177-181 ◽  
pp. 487-492 ◽  
Author(s):  
Y. Kitaoka ◽  
K. Magishi ◽  
S. Matsumoto ◽  
K. Ishida ◽  
S. Ohsugi ◽  
...  
Keyword(s):  
Spin Ladder ◽  
Nmr Studies ◽  
High Tc

Pressure induced structural and spin state transitions in Sr3Fe2O5

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 94105-94112 ◽  
Author(s):  
Yuanhui Xu ◽  
Xianfeng Hao ◽  
Shanshan Liu ◽  
Jing Wang ◽  
Chunxiang Shi ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Spin State ◽  
Density Functional ◽  
State Transitions ◽  
Spin Ladder ◽  
Generalized Gradient ◽  
Ladder Structure ◽  
Functional Theory ◽  
Generalized Gradient Approximation

The effect of pressure on the structural, electronic and magnetic properties of the two-legged spin ladder structure Sr3Fe2O5 was investigated, using density functional theory within the generalized gradient approximation (GGA) + U method.

Mechanisms of high-Tc superconductivity in low-dimensional materials

1987 ◽  
Vol 2 (6) ◽  
pp. 793-799 ◽  
Author(s):  
Vladimir Z. Kresin
Keyword(s):  
Proximity Effect ◽  
Coherence Length ◽  
Two Dimensional ◽  
Phonon Coupling ◽  
Strong Electron ◽  
High Tc ◽  
Electron Phonon Coupling ◽  
Low Dimensionality ◽  
Low Dimensional ◽  
Low Dimensional Materials

High-Tc superconductivity is due to the action of two mechanisms: (1) plasmon mechanism, i.e., exchange of two-dimensional (2-D) plasmons and (2) strong electron-phonon coupling. The low dimensionality and the small value of the carrier concentration make the plasmon mechanism favorable. The small value of the coherence length leads to a unique opportunity to observe a multigap structure. The proximity effect can be used in order to increase Tc of A-15 compounds.

scholarly journals EXCITATIONS OF A LOW-DIMENSIONAL DIMERIZED SPIN LADDER UNDER A MAGNETIC FIELD

2007 ◽  
Vol 21 (07) ◽  
pp. 1005-1018
Author(s):  
SUJIT SARKAR
Keyword(s):  
Magnetic Field ◽  
Liquid Phase ◽  
Analytical Approach ◽  
Nearest Neighbor ◽  
Luttinger Liquid ◽  
Spin Ladder ◽  
Spin Gap ◽  
Ferromagnetic Interaction ◽  
Low Dimensional ◽  
Type Of Transition

Here we study the dimerized spin ladder with nearest-neighbor (J1) and next-nearest-neighbor (J2) anti-ferromagnetic interaction under a magnetic field. We predict the existence of different magnetization plateaus for the presence of spin-Peierls interaction on both J1 and J2. Magnetization plateau at m = 0 for J1 dimerization is spontaneous due to XY interaction, but it is absent for J2 dimerization, only intrinsic umklapp term leads to plateau (spin gap) state for some specific values of XXZ anisotropy (Δ) and J2. Here we predict a saturation plateau which is the classical phase of the system. There are some numerical support of our analytical approach already existing in the literature. The transition from commensurate gapped phase to incommensurate Luttinger liquid phase is the Mott-δ type of transition.

Electrons in anharmonic phonon fields of low-dimensional high-Tc superconductors

1996 ◽  
Vol 223-224 ◽  
pp. 538-540 ◽  
Author(s):  
Sanjiv Srivastava ◽  
Y.P Raiwani ◽  
S.C Gairola ◽  
B.D Indu
Keyword(s):  
High Tc Superconductors ◽  
High Tc ◽  
Low Dimensional
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