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Related papers: Mn-doping induced magnetic properties in Co2CrO4 s…

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We investigated the magnetic properties of (La$_{1-x}$Ba$_{x}$)(Zn$_{1-x}$Mn$_{x}$)AsO with $x$ varying from 0.005 to 0.05 at an external magnetic field of 1000 Oe. For doping levels of $x$ $\leq$ 0.01, the system remains paramagnetic down…

Strongly Correlated Electrons · Physics 2018-12-04 Guoxiang Zhi , Kai Wang , Haojie Zhang , Cui Ding , Shengli Guo , Yilun Gu , Licheng Fu , F. L. Ning

The temperature, doping and field dependences of the magnetoresistance (MR) in Pr_(2-x)Ce_(x)CuO_(4-delta) films are reported. We distinguish between orbital MR, found when the magnetic field is applied perpendicular to the ab planes, and…

Superconductivity · Physics 2007-05-23 Y. Dagan , A. Biswas , M. C. Barr , W. M. Fisher , R. L. Greene

We present a joint experimental and theoretical characterization of the magnetic properties of coordination clusters with an antiferromagnetic core of four magnetic ions. Two different compounds are analyzed, with Co and Mn ions in the…

Chemical Physics · Physics 2021-09-16 Simona Achilli , Claire Besson , Xu He , Pablo Ordejòn , Carola Meyer , Zeila Zanolli

Heterostructures of Co-doped ZnO and Permalloy were investigated for their static and dynamic magnetic interaction. The highly Co-doped ZnO is paramagentic at room temperature and becomes an uncompensated antiferromagnet at low…

Materials Science · Physics 2020-02-19 Martin Buchner , Julia Lumetzberger , Verena Ney , Taddäus Schaffers , Niéli Daffé , Andreas Ney

Mo doped ruthenocuprates Ru1-xMoxSr2Eu1.5Ce0.5Cu2O10 are synthesized for x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0, and their magnetic and superconducting properties are studied. It has been found that the magnetic transition temperature…

Superconductivity · Physics 2009-11-11 V. P. S. Awana , R. Lal , H. Kishan , A. V. Narlikar , M. Peurla , R. Laiho

We have investigated the effect of Cu substitution in Eu2(Ir1-xCux)2O7 with the help of magnetic and transport property measurements. XPS measurement reveals that each Cu2+ converts Ir4+ to double amount of Ir5+ ions. The metal-insulator…

Strongly Correlated Electrons · Physics 2022-04-20 Sampad Mondal , M. Modak , B. Maji , Swapan K. Mandal , B. Ghosh , Surajit Saha , M. Sardar , S. Banerjee

Resistivity and dc magnetization measurements were performed for the polycrystalline Pr$_{0.5}$Ca$_{0.5}$Co$_{1-x}$Fe$_{x}$O$_{3-\delta}$ ($x$ = 0, 0.05, 0.10 and 0.15) samples. The as-fabricated samples exhibit ferromagnetic (FM)…

Strongly Correlated Electrons · Physics 2009-11-11 X. G. Luo , X. Li , G. Y. Wang , G. Wu , X. H. Chen

Mn doped semiconductors are extremely interesting systems due to their novel magnetic properties suitable for the spintronics applications. It has been shown recently by both theory and experiment that Mn doped GaN systems have a very high…

Materials Science · Physics 2016-08-31 B. Sanyal , O. Bengone , S. Mirbt

We calculate the nature of magnetic interactions in transition-metal doped ZnO using the local spin density approximation and LSDA+\textit{U} method of density functional theory. We investigate the following four cases: (i) single…

Materials Science · Physics 2009-11-11 Priya Gopal , Nicola A. Spaldin

Using the first-principles density-functional theory plan-wave pseudopotential method, we investigate the structure and magnetism in 25% Mn substitutive and interstitial doped monoclinic, tetragonal and cubic ZrO2 systematically. Our…

Materials Science · Physics 2015-05-13 Xingtao Jia , Wei Yang , Minghui Qin , Jianping Li

Doped transition-metal dichalcogenides monolayers exhibit exciting magnetic properties for the benefit of two-dimensional spintronic devices. Using density functional theory (DFT) incorporating Hubbard-type of correction (DFT$+U$) to…

Materials Science · Physics 2021-05-12 Adlen Smiri , Sihem Jaziri , Samir Lounis , Iann C. Gerber

We report magnetization measurements and magnetic resonance data for SrTiO3 doped by manganese. We show that the recently reported coexistent spin and dipole glass (multiglass) behaviours are strongly affected by the distribution of Mn ions…

In frustrated spinel antiferromagnets, dilution with non-magnetic ions can be a powerful strategy for probing unconventional spin states or uncovering interesting phenomena. Here, we present X-ray, neutron scattering and thermodynamic…

Strongly Correlated Electrons · Physics 2018-06-20 A. V. Zakrzewski , S. Gangopadhyay , A. A. Aczel , S. Calder , T. J. Williams , G. J. MacDougall

We have studied the magnetic and transport behavior of doped La0.65 A0.35 Mn0.95Fe0.05 O3 (A= Ca, Sr, Pb, Ba) compounds. All the compositions show ferromagnetic/metal to paramagnetic/insulator transition except the Pb doped sample which is…

Strongly Correlated Electrons · Physics 2010-09-30 Wiqar Hussain Shah , Gul Rehman , S. K. Hasanain

We present a theoretical study of (Ga,Mn)(As,C) diluted magnetic semiconductors with high C acceptor density that combines insights from phenomenological model and microscopic approaches. A tight-binding coherent potential approximation is…

Materials Science · Physics 2007-05-23 T. Jungwirth , J. Masek , Jairo Sinova , A. H. MacDonald

Combining experiments with first principles calculations, we show that site-specific doping of Mn into SrTiO3 has a decisive influence on the dielectric properties of these doped systems. We find that phonon contributions to the dielectric…

Recent neutron diffraction and NMR studies suggest that the incommensurately modulated spin cycloid structure of BiFeO3 is stable down to 4.2 K, whereas DC [M(T)] and AC [\c{hi} ({\omega}, T)] magnetization, and caloric studies have…

Materials Science · Physics 2016-06-21 Arun Kumar , Dhananjai Pandey

We have investigated the effect of temperature on magnetic properties of Bi$_{0.9}$Gd$_{0.1}$Fe$_{1-x}$Ti$_x$O$_3$ (x = 0.00-0.20) multiferroic system. Unexpectedly, the coercive fields ($H_{c}$) of this multiferroic system increased with…

Materials Science · Physics 2016-03-29 Bashir Ahmmad , M. Z. Islam , Areef Billah , M. A. Basith

The in-plane magnetoresistance (MR) in La2-xSrxCuO4 films with 0.03 < x < 0.05 has been studied in the temperature range 1.6 K to 100 K, and in magnetic fields up to 14 T, parallel and perpendicular to the CuO2 planes. The behavior of the…

Superconductivity · Physics 2009-11-10 Marta Z. Cieplak , A. Malinowski , S. Guha , M. Berkowski

We measured the magnetoresistance as a function of temperature down to 20mK and magnetic field for a set of underdoped PrCeCuO (x=0.12) thin films with controlled oxygen content. This allows us to access the edge of the superconducting dome…

Superconductivity · Physics 2015-05-19 S. Finkelman , M. Sachs , J. Paglione , G. Droulers , P. Bach , R. L. Greene , Y. Dagan
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