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相关论文: Superparamagnetic and metal-like Ru2TiGe: a propit…

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We report on the thermodynamic, magnetic properties and the magnetic structure of ludwigite-type Cu2MnBO5. The specific heat, the low-field magnetization and the paramagnetic susceptibility were studied on a single crystal and combined with…

Two magnetic transitions are observed in the magneto-superconducting RuEu2-xCexSr2Cu2O10 (Ru-1222), at TM 160 K and TM2~80 K. Below TM2 the Ru moments are weak-ferromagnetically ordered and wide ferromagnetic hysteresis loops are observed,…

超导电性 · 物理学 2009-11-11 I. Felner , E. Galstyan , I. Nowik

In the present work, a combined theoretical and experimental study on Co$_{2}$PtGa Heusler alloy shows that it exhibits a martensite transition around 1320 K with a small thermal hysteresis (10 K). Dynamical stability of Co$_2$PtGa in the…

材料科学 · 物理学 2017-12-22 Tufan Roy , P. Devi , Sanjay Singh , S. R. Barman , Aparna Chakrabarti

We report the detailed analysis of temperature dependent neutron diffraction pattern of the Cr$_2$CoAl inverse Heusler alloy and unveil the magnetic structure up to the phase transition as well as its fully compensated ferrimagnetic nature.…

强关联电子 · 物理学 2023-03-22 Guru Dutt Gupt , Yousef Kareri , James Hester , Clemens Ulrich , R. S. Dhaka

Novel Ni-Co-Mn-Ti all-d-metal Heusler alloys are exciting due to large multicaloric effects combined with enhanced mechanical properties. An optimized heat treatment for a series of these compounds leads to very sharp phase transitions in…

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

We have investigated the electronic and thermoelectric properties of half-Heusler alloys NiTZ (T = Sc, and Ti; Z = P, As, Sn, and Sb) having 18 valence electron. Calculations are performed by means of density functional theory and Boltzmann…

We have performed an experimental study on the temperature and field dependence of magnetization of a series of superconducting Mo$_{100-x}$Re$_x$ alloys. Our studies reveal the presence of high field paramagnetic effect (HFPME) in these…

超导电性 · 物理学 2018-03-30 Shyam Sundar , M K Chattopadhyay , L S Sharath Chandra , S B Roy

A new magnetic transition in the ruthenocuprate parent compound RuSr2EuCeCu2O10 has been observed below 10 K. It shows up only as a kink in the imaginary part of the ac susceptibility and exhibits a pronounced frequency dependence. At the…

强关联电子 · 物理学 2015-06-25 I. Zivkovic , D. Pajic , K. Zadro

Co$_2$FeSi crystallizes in the ordered L2$_1$ structure as proved by X-ray diffraction and M\"o\ss bauer spectroscopy. The magnetic moment of Co$_2$FeSi was measured to be about $6\mu_B$ at 5K. Magnetic circular dichroism spectra excited by…

The thermoelectric power factor of the narrow-gap semiconductor FeSb2 is greatly enhanced in comparison to the isostructural homologues FeAs2 and RuSb2. Comparative studies of magnetic and thermodynamic properties provide evidence that the…

强关联电子 · 物理学 2009-10-06 Peijie Sun , Niels Oeschler , Simon Johnsen , Bo B. Iversen , Frank Steglich

We investigate the layered magnetic semiconductor EuTe4, focusing on its intricate charge-density wave (CDW) states near and above room temperature through single-crystal X-ray diffraction (XRD), magnetic, and thermoelectric…

材料科学 · 物理学 2025-08-25 Hidefumi Takahashi , Kiichiro Yoshida , Akitoshi Nakano , Shintaro Ishiwata

We have studied the half-Heusler compound TbPdBi through resistivity, magnetization, Hall effect and heat capacity measurements. A semimetal behavior is observed in its normal state transport properties, which is characterized by a large…

超导电性 · 物理学 2018-08-01 H. Xiao , T. Hu , W. Liu , Y. L. Zhu , P. G. Li , G. Mu , J. Su , K. Li , Z. Q. Mao

The magnetic properties of superconducting Ru1-xSr2GdCu2O8 (x=0, 0.02) and non-superconducting RuSr2Gd1-xCexCu2O8 (x=0.07, 0.1) were investigated by means of magnetocaloric experiments with complementary magnetoresistivity and ac…

材料科学 · 物理学 2010-04-09 Piotr W Klamut , Tomasz Plackowski

$\beta$-Ag$_2$Se is a promising material for room temperature thermoelectric applications and magneto-resistive sensors. However, no attention was paid earlier to the hysteresis in the temperature dependence of resistivity ($\rho$($T$)).…

材料科学 · 物理学 2021-10-27 L. S. Sharath Chandra , SK. Ramjan , Soma Banik , Archna Sagdeo , M. K. Chattopadhyay

The temperature dependence of the thermoelectric power, S(T), and the electrical resistivity of the magnetically ordered CeRu_2Ge_2 (T_N=8.55 K and T_C=7.40 K) were measured for pressures p < 16 GPa in the temperature range 1.2 K < T < 300…

强关联电子 · 物理学 2007-05-23 H. Wilhelm , D. Jaccard

Here, we investigate the thermoelectric properties of the marcasite-type compounds MSb$_2$ (M = Ta, Nb) in the temperature range of 310-730 K. These compounds were synthesized by a solid-state reaction followed by the spark plasma sintering…

材料科学 · 物理学 2024-03-20 Shamim Sk , Naoki Sato , Takao Mori

We report a detailed magnetic and structural analysis of highly reduced Co doped rutile TiO2 films displaying an anomalous Hall effect (AHE). The temperature and field dependence of magnetization, and transmission electron microscopy…

Uranus and Neptune are characterized by anomalously tilted and multi-dipole magnetic fields, which poses substantial challenges for elucidating the internal mechanisms generating magnetic fields. Recent investigations confirmed that…

地球与行星天体物理 · 物理学 2026-03-03 Daohong Liu , Wei Zhang , Yu He , Xinzhuan Guo , Chuanyu Zhang , Yang Sun

The RCo2Mn (R= Ho and Er) alloys, crystallizing in the cubic MgCu2-type structure, are isostructural to RCo2 compounds. The excess Mn occupies both the R and the Co atomic positions. Magnetic, electrical and heat capacity measurements have…

强关联电子 · 物理学 2015-05-14 Bibekananda Maji , K. G. Suresh , A. K. Nigam