Temperature Dependence of Electronic and Magnetic Properties of (DOEO)4[HgBr4]·TCE Single Crystals

The temperature dependence of electronic and magnetic properties of the organic charge-transfer salt (DOEO)4[HgBr4]·TCE was investigated using magnetometry. The magnetic susceptibility shows a maximum at 40 K followed by an onset of a pronounced increase at 70 K and a constant behavior above 120 K. Implications on the charge carrier density are discussed. Combining the magnetometry with resistivity and ESR measurements we propose a sequence of insulating, metallic and semiconducting behavior with increasing temperature. Our results indicate that (DOEO)4[HgBr4]·TCE is close to the boundary between an insulating and conducting ground state.

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The magnetic properties of antimony

Mathematical Proceedings of the Cambridge Philosophical Society ◽

10.1017/s0305004100019216 ◽

1936 ◽

Vol 32 (3) ◽

pp. 499-502 ◽

Cited By ~ 14

Author(s):

D. Shoenberg ◽

M.Zaki Uddin

Keyword(s):

Magnetic Properties ◽

Magnetic Susceptibility ◽

Temperature Dependence ◽

Trigonal Axis ◽

Increasing Temperature

The magnetic susceptibility of antimony both parallel and perpendicular to the trigonal axis is independent of field down to 4° K. The numerical value of the susceptibility parallel to the trigonal axis decreases with increasing temperature, similarly to that of bismuth, but perpendicular to the trigonal axis there is no temperature dependence. The results at higher temperatures are compared with earlier measurements and the comparison suggests that the susceptibility of antimony, like that of bismuth, is very sensitive to addition of foreign elements.

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Susceptibility and Evidences of Charge Carriers Interaction above Tc in Nd1.85Ce0.15CuO4+δ

International Journal of Modern Physics B ◽

10.1142/s0217979299001107 ◽

1999 ◽

Vol 13 (09n10) ◽

pp. 1151-1156 ◽

Cited By ~ 3

Author(s):

A. Lascialfari ◽

P. Ghigna ◽

S. De Gennaro

Keyword(s):

Magnetic Properties ◽

Magnetic Susceptibility ◽

Critical Temperature ◽

Charge Carrier ◽

Effective Magnetic Moment ◽

Carrier Density ◽

Charge Carriers ◽

Oxide Superconductors ◽

Charge Carrier Density ◽

Copper Oxide Superconductors

The charge carrier density plays a crucial role in the transition between normal and superconducting state in the copper-oxide superconductors. In Nd 1.85 Ce 0.15 CuO 4+δ sample, for charge carrier density n = nc≃ 0.07 the superconductivity sets in. In order to investigate the magnetic properties around nc, a set of magnetic susceptibility measurements in the temperature range 3-260K for samples with different charge carriers concentrations were realized. Magnetic susceptibility curves of Nd 1.85 Ce 0.15 CuO 4+δ revealed novel behavior well above the critical temperature T c: at fixed T ≥45 K , the susceptibility χ, reported as a function of the charge carrier density n, shows a peak around n=0.06 and drops to significantly lower values for n greater than 0.07, the value at which the samples become superconducting. The effective magnetic moment μeff shows the same behavior. The comparison of the present experimental results with recent transport ones gives evidence of a possible interaction between charge carriers above T c. The possibility that this effect could be due to a bipolarons-like mechanism of charge carriers interaction is discussed.

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WANG–LANDAU SIMULATION ON THERMODYNAMIC AND MAGNETIC PROPERTIES OF HONEYCOMB LATTICE

International Journal of Modern Physics B ◽

10.1142/s0217979211101727 ◽

2011 ◽

Vol 25 (26) ◽

pp. 3435-3442

Author(s):

XIAOYAN YAO

Keyword(s):

Magnetic Field ◽

Monte Carlo Simulation ◽

Magnetic Properties ◽

Free Energy ◽

Magnetic Susceptibility ◽

Magnetic Property ◽

Ground State ◽

Antiferromagnetic Order ◽

Honeycomb Lattice ◽

Antiferromagnetic Ising Model

Wang–Landau algorithm of Monte Carlo simulation is performed to understand the thermodynamic and magnetic properties of antiferromagnetic Ising model on honeycomb lattice. The internal energy, specific heat, free energy and entropy are calculated to present the thermodynamic behavior. For magnetic property, the magnetization and magnetic susceptibility are discussed at different temperature upon different magnetic field. The antiferromagnetic order is confirmed to be the ground state of the system, and it can be destroyed by a large magnetic field.

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Structures, electronic and magnetic properties of the MnnS and Mnn−1S2 (n = 1–6) clusters

International Journal of Modern Physics B ◽

10.1142/s0217979219502540 ◽

2019 ◽

Vol 33 (22) ◽

pp. 1950254 ◽

Cited By ~ 2

Author(s):

Zhi Li ◽

Zhen Zhao ◽

Qi Wang ◽

Tong-Tong Shi

Keyword(s):

Magnetic Properties ◽

Ground State ◽

First Principles ◽

Steel Industry ◽

Population Analysis ◽

Total Spin ◽

Spontaneous Generation ◽

Mulliken Population ◽

Electronic And Magnetic Properties ◽

Homo Lumo

To understand sulfide inclusions in the steel industry, the structures, stabilities, electronic and magnetic properties of the Mn[Formula: see text]S and Mn[Formula: see text]S2 (n=1–6) clusters are investigated by using first-principles. The results show that the S atoms prefer to occupy the outside surface center of the Mn[Formula: see text] (n = 3–6) clusters. Chiral isomers are occurred to the Mn5S2 isomers. The Mn2S, Mn2S2 clusters are more stable than their neighbors. However, the MnS, S2, and Mn5I2 clusters possess higher dynamic stability than their neighbors by the HOMO–LUMO gaps. The Mn[Formula: see text]S and Mn[Formula: see text]S2 (n = 1–6) clusters prefer to spontaneous generation by Gibbs free energy. A few 4s orbital electrons of Mn atoms transferred to the S atoms by Mülliken population analysis. For the other Mn[Formula: see text]S (n = 1–6) clusters, the spin density (17.256) of the ground-state Mn6S clusters is the largest. For the Mn[Formula: see text]S2 (n = 1–6) clusters, the total spin (9.604) of the ground-state Mn2S2 cluster is the largest.

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Ground state electronic and magnetic properties of RCrSb3 (R=La, Ce, Nd, Gd and Dy): A first principles study

Solid State Communications ◽

10.1016/j.ssc.2011.06.002 ◽

2011 ◽

Vol 151 (18) ◽

pp. 1224-1227 ◽

Cited By ~ 3

Author(s):

M.P. Ghimire ◽

Sandeep ◽

T.P. Sinha ◽

R.K. Thapa

Keyword(s):

Magnetic Properties ◽

Ground State ◽

First Principles ◽

Electronic And Magnetic Properties ◽

First Principles Study

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Magnetische Eigenschaften von [Cu{OCH2CH2N(C4H9)2}NCO]4 im Bereich von 10 bis 240 K / Magnetic Properties of [Cu{OCH2CH2N(C4H9)2}NCO]4 in the Temperature Range from 10 to 240 K

Zeitschrift für Naturforschung B ◽

10.1515/znb-1998-0112 ◽

1998 ◽

Vol 53 (1) ◽

pp. 58-62

Author(s):

W. Münch ◽

L. Walz ◽

M. König

Keyword(s):

Magnetic Properties ◽

Magnetic Susceptibility ◽

Temperature Dependence ◽

Title Compound ◽

Temperature Range ◽

New Phase ◽

Exchange Parameters

The magnetic properties of the title compound were re-investigated, since a new phase below 240 K has recently been identified. The exchange parameters were evaluated from the temperature dependence of the magnetic susceptibility with a Heisenberg operator taking into account the high pseudo-symmetry of the tetrameric units observed.

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Ground State Structures, Electronic and Magnetic Properties of ScnFe (n=2-10) Clusters

Chinese Journal of Chemistry ◽

10.1002/cjoc.201100241 ◽

2012 ◽

Vol 30 (4) ◽

pp. 905-913 ◽

Cited By ~ 5

Author(s):

Jiangang Yao ◽

Bin Xu ◽

Yuanxu Wang

Keyword(s):

Magnetic Properties ◽

Ground State ◽

Electronic And Magnetic Properties ◽

Ground State Structures

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ROLE OF FRUSTRATION IN MAGNETISM AND THERMODYNAMIC PROPERTIES OF YMn2 AND β-Mn

International Journal of Modern Physics B ◽

10.1142/s0217979293002171 ◽

1993 ◽

Vol 07 (01n03) ◽

pp. 1008-1012 ◽

Cited By ~ 3

Author(s):

M. SHIGA ◽

K. YOSHIMOTO ◽

H. NAKAMURA ◽

H. WADA

Keyword(s):

Electrical Resistivity ◽

Magnetic Susceptibility ◽

Thermodynamic Properties ◽

Specific Heat ◽

Temperature Dependence ◽

Ground State ◽

Quantum Spin ◽

Spin Liquid ◽

Quantum Spin Liquid

The temperature dependence of the magnetic susceptibility, the specific heat and the electrical resistivity of Y(Sc) (Mn1−xAlx)2 and β-Mn1−xAlx systems has been measured. It is shown that the ground state for x=0 is not a simple Pauli paramagnet but may be regarded as a quantum spin liquid. The substitution of Al for Mn results in the spin glass freezing. The role of frustration is discussed for understanding these phenomena.

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Thermal and magnetic properties of ferric methylammonium sulphate

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1956.0186 ◽

1956 ◽

Vol 237 (1210) ◽

pp. 404-412 ◽

Cited By ~ 11

Keyword(s):

Magnetic Properties ◽

Magnetic Susceptibility ◽

Specific Heat ◽

Magnetic Anomaly ◽

Ground State ◽

Magnetic Contribution ◽

Lattice Contribution ◽

Magnetic Cooling ◽

Maximum Value ◽

Other Substances

The specific heat and magnetic susceptibility of ferric methylammonium sulphate have been measured at temperatures between 0·17 and 20°K. The specific heat has been analyzed into a lattice contribution and a magnetic anomaly. It is shown that the magnetic contribution to the specific heat can be accounted for almost entirely by the Schottky anomaly due to the Stark splittings of the ground state of the Fe 3+ ions, previously determined by Bleaney & Trenam. These splittings are unusually large in this salt, with the result that the specific heat is very large at temperatures near 1°K, reaching a maximum value of 1·1 cal/mole at 0·33°K. The salt should therefore be useful for magnetic cooling experiments in which other substances are to be kept below 1°K for prolonged periods.

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