Magnetoresistance and Magnetic Properties CexMn1-xS

The transport and magnetic properties of cation-substituted manganese sulphides CexMn1-ХS in the 4K - 450K temperature range in magnetic fields up to 90 kOe are studied. The hysteresis of curve magnetization for X=0.01 and nonlinear field behavior of the magnetization at X = 0.05, the sharp Curie temperature drop were found. The sharp maximum in the temperature dependence of resistivity was observed. The shift of the maximum temperature to low temperatures at cerium ion concentration increasing and in magnetic field was established. Model of orbital polaron for explanation of experimental datа was used.

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Martensitic Transformation and Mechanical Properties of Fe-Doped Ni54Mn21Ga25 Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.687.500 ◽

2011 ◽

Vol 687 ◽

pp. 500-504

Author(s):

S. X. Xue ◽

S.S. Feng ◽

P. Y. Cai ◽

Q T Li ◽

H. B. Wang

Keyword(s):

Magnetic Field ◽

Mechanical Properties ◽

Magnetic Properties ◽

Martensitic Transformation ◽

Curie Temperature ◽

Directional Solidification ◽

Transformation Temperature ◽

Room Temperature ◽

Martensitic Transformation Temperature ◽

Polycrystalline Alloys

Ni54Mn21-xFexGa25（x=0,1,3,5,7,9）polycrystalline alloys were prepared by the technique of directional solidification and the effect of substituting Fe for Mn on the martensitic transformation and mechanical properties of the alloys was analyzed. It was found that the Curie temperature increased with increasing substitution while the martensitic transformation temperature decreased. The Fe-doped Ni54Mn21Ga25 alloys exhibit excellent magnetic properties at room temperature; the typical Ni54Mn20Fe1Ga25 alloy shows a large magnetic-induced-strain of -1040 ppm at a magnetic field of 4000 Oe.

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Sputter Etching Effect on Magnetic Properties in TaOx/TbFeCo/Ag Layered Films

MRS Proceedings ◽

10.1557/proc-318-457 ◽

1993 ◽

Vol 318 ◽

Author(s):

Takumi Shimamori ◽

Hidemi Yoshida ◽

Yoshimitsu Kobayashi

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Curie Temperature ◽

Magnetization Reversal ◽

Digital Recording ◽

The Media ◽

The Magnetic Field ◽

Etching Effect ◽

Sputter Etching

ABSTRACTSputter etching effect on magnetic properties was investigated in TaOx/TbFeCo/Ag layered films. With sputter etching, smooth interfaces of about lnm roughness were obtained. In films with smooth interfaces, magnetization was stabilized and magnetization reversal was sharpened at around the Curie temperature. As a result, recorded marks were stabilized, and the media became sensitive to the magnetic field for writing. 49dB was obtained as C/N even at 0.45μm mark length, which is sufficient for digital recording.

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MAGNETIC PROPERTIES OF CaxLa1 - xMnO3 (x > 0.5) PEROVSKITES

Modern Physics Letters B ◽

10.1142/s0217984903005214 ◽

2003 ◽

Vol 17 (07) ◽

pp. 263-266 ◽

Cited By ~ 1

Author(s):

C. HIMCINSCHI ◽

E. BURZO ◽

R. TETEAN ◽

D. RISTOIU ◽

V. POP

Keyword(s):

Magnetic Properties ◽

Curie Temperature ◽

Low Temperatures ◽

Calcium Content ◽

Large Temperature ◽

Antiferromagnetic State ◽

Paramagnetic Curie Temperature ◽

Temperature Range ◽

Lanthanum Content ◽

Magnetic Sublattices

The magnetic properties of Ca x La 1 - x MnO 3 perovskites with x = 0.6 and x = 0.8 were studied in a large temperature range. A transition from mictomagnetic to antiferromagnetic state is evidenced at low temperatures for the samples with high lanthanum content. As the calcium content increases an essential antiferromagnetic behaviour is shown. The valences states of Mn ions were determined. The interactions inside the magnetic sublattices dominate those between the two sublattices as evidenced by the positive paramagnetic Curie temperature.

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Magnetic Properties of the Gd1-xTbxNi3 Intermetallic Compounds

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.170.109 ◽

2011 ◽

Vol 170 ◽

pp. 109-113 ◽

Cited By ~ 10

Author(s):

Anna Bajorek ◽

Grażyna Chełkowska ◽

Artur Chrobak ◽

Marzena Kwiecień-Grudziecka

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Curie Temperature ◽

Saturation Magnetization ◽

Intermetallic Compounds ◽

Applied Magnetic Field ◽

Magnetic Measurements ◽

Zero Field ◽

Zero Field Cooling ◽

Field Cooling

The paper presents selected magnetic properties of the Gd1-xTbxNi3 intermetallic compounds. Based on the wide-ranging SQUID magnetometer (Quantum Design MPMS, temperature from 1.9K to 300K and magnetic field up to 7T) series of different magnetic measurements were carried out. In studied system the saturation magnetization and the Curie temperature strongly depends of Tb concentration. Moreover, the so-called field cooling - zero field cooling (FC-ZFC) curves reveal a dependence of M(T) on the applied magnetic field. The thermomagnetic curves indicate interesting behaviour which is typical for terbium compounds and can be ascribed to the interaction between different aligned magnetic subblattices.

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Synthesis and Magnetic Properties of β-Cu3Fe4(VO4)6 Single Crystals

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.233-234.137 ◽

2015 ◽

Vol 233-234 ◽

pp. 137-140

Author(s):

Dmitry A. Balaev ◽

Oleg A. Bayukov ◽

Evgeniy V. Eremin ◽

M.S. Molokeev ◽

Anatoly I. Pankrats ◽

...

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Single Crystal ◽

Spin Glass ◽

Single Crystals ◽

Low Temperatures ◽

Freezing Temperature ◽

X Ray ◽

Glass State ◽

The Magnetic Field

β-Cu3Fe4(VO4)6 single crystals were synthesized. The X-ray, magnetic, Mössbauer, and EPR investigations of the crystals were fulfilled. It is established that single-crystal β-Cu3Fe4(VO4)6 is a spin glass at low temperatures. Freezing temperature varies considerably depending on the orientation of the magnetic field relative to the crystal axes. Spin-glass state is confirmed by the relaxation of the magnetization.

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Magnetic Properties of One-Dimensional Dilute Ising Systems. I

Canadian Journal of Physics ◽

10.1139/p73-140 ◽

1973 ◽

Vol 51 (10) ◽

pp. 1053-1063 ◽

Cited By ~ 43

Author(s):

Fumitaka Matsubara ◽

Koh'ichi Yoshimura ◽

Shigetoshi Katsura

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Power Series ◽

Low Temperatures ◽

Recurrence Relations ◽

Nearest Neighbor ◽

One Dimensional ◽

Specific Heats ◽

Ising Systems ◽

The Magnetic Field

One-dimensional dilute systems with nearest neighbor interactions are studied in terms of power series of the concentration of magnetic atoms. Recurrence relations between coefficients of the power series of the Ising systems are obtained. The Ising systems of S = 1/2 are studied. The specific heats, the susceptibilities, and the magnetizations of the ferro magnets and antiferromagnets are obtained. At low temperatures, three steps in the magnetization of antiferromagnetic systems are found. An Ising system of S = 1/2 with nearest and second nearest neighbor interactions is also studied by extending the method, and the specific heats are obtained when the magnetic field is zero.

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Effect of Pulsed Magnetic Field Treatment on the Magnetic Properties of the Fe-Nd-Al-B Alloys Prepared by Suction Casting

Materials Science Forum ◽

10.4028/www.scientific.net/msf.688.383 ◽

2011 ◽

Vol 688 ◽

pp. 383-388 ◽

Cited By ~ 1

Author(s):

Qin Bai ◽

H. Man ◽

Y.J. Tang ◽

H. Xu ◽

S. Xia

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Curie Temperature ◽

Curie Point ◽

Amorphous Alloys ◽

Exchange Coupling ◽

Pulsed Magnetic Field ◽

Magnetic Phases ◽

Bulk Amorphous Alloys ◽

Magnetic Field Treatment

The magnetic properties of the (Fe0.53Nd0.37Al0.10)96B4bulk amorphous alloys annealed in the temperature range of 293-623K for 30 min with and without an external pulsed magnetic field of 5T were studied. The results reveal that the remanence and coercivity of the samples are obviously improved with a pulsed magnetic field when annealed below the Curie temperature of the alloy. The increment of remanence reaches 25.9% for the sample annealed at 523K with a pulsed magnetic field, because of the enhancement of exchange coupling roles between the soft and hard magnetic phases. It provides a new way to improve the magnetic properties of the bulk amorphous alloys produced by pulsed magnetic annealing at temperatures below the Curie point of the alloys.

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