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Using dc and ac magnetometry, the pressure dependence of the magnetization of the three-dimensional antiferromagnetic coordination polymer Mn(N(CN)$_{2}$)$_{2}$ was studied up to 12 kbar and down to 8K. The magnetic transition temperature,…

Materials Science · Physics 2015-02-03 P. A. Quintero , D. Rajan , M. K. Peprah , T. V. Brinzari , R. S. Fishman , D. R. Talham , M. W. Meisel

We theoretically investigate the unusual features of the magnetotransport in a monolayer phosphorene ferromagnetic/normal/ferromagnetic (F/N/F) hybrid structure. We find that the charge conductance can feature a minimum at parallel (P)…

Mesoscale and Nanoscale Physics · Physics 2017-03-28 Moslem Zare , Leyla Majidi , Reza Asgari

Hexagonal YMnO_3 with space group P63cm is one of the rare examples of multiferroic materials that exhibit co-dependence of a robust ferroelectric phase along with antiferromagnetic ordering. This is primarily ascribed to tilting of the…

Strongly Correlated Electrons · Physics 2010-05-25 A. K. Singh , S. D. Kaushik , V. Siruguri , S. Patnaik

The effect of electron doping on the structural, transport, and magnetic properties of Mn (IV) - rich Ca1-xYxMnO3 (x < 0.2) samples have been investigated using neutron diffraction, neutron depolarization, magnetization and resistivity…

Materials Science · Physics 2016-02-09 Neetika Sharma , A. Das , C. L. Prajapat , Amit Kumar , M. R. Singh

We report on the structural, magnetic, and electron transport properties of a L1o-ordered epitaxial iron-platinum alloy layer fabricated by magnetron-sputtering on a MgO(001) substrate. The film studied displayed a long range chemical order…

Materials Science · Physics 2009-11-13 K. M. Seemann , V. Baltz , M. MacKenzie , J. N. Chapman , B. J. Hickey , C. H. Marrows

We studied the field dependent thermal conductivity ($\kappa$) of Na$_2$Co$_2$TeO$_6$, a compound considered as the manifestation of the Kitaev model based on the high-spin $d^7$ Co$^{2+}$ ions. We found that in-plane magnetic fields beyond…

In oxide materials, nanostructuring effect has been found very promising approach for the enhancement of \textit{figure-of-merit}, \textit{ZT}. In the present work, we have synthesized La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ (LSMO) compound using…

It is shown that, upon the electron quantum transport via the nanostructure containing a spin dimer, the spin-flip processes caused by the s-f exchange interaction between electron and dimer spins lead to the Fano resonance effects. An…

Mesoscale and Nanoscale Physics · Physics 2011-09-05 Valery V. Val'kov , Sergey V. Aksenov

Electrical transport and specific heat properties of Nd_{1-x}Pb_{x}MnO_{3} single crystals for 0.15 < x 0.5 have been studied in low temperature regime. The resistivity in the ferromagnetic insulating (FMI) phase for x < 0.3 has an…

Strongly Correlated Electrons · Physics 2009-11-13 N. Ghosh , U. K. Roessler , K. Nenkov , C. Hucho , H. L. Bhat , K. H. Mueller

Transport and magnetic studies of Ca3Ru2O7 for temperatures ranging from 0.4 K to 56 K and magnetic fields, B, up to 45 T leads to strikingly different behavior when the field is applied along the different crystal axes. A ferromagnetic…

Strongly Correlated Electrons · Physics 2009-11-11 X. N. Lin , Z. X. Zhou , V. Durairaj , P. Schlottmann , G. Cao

We report low temperature specific heat measurements of Pr$_{1-x}$Ca$_{x}$MnO$_{3}$ ($0.3\leq x \leq 0.5$) and La$_{0.5}$Ca$_{0.5}$MnO$_{3}$ with and without applied magnetic field. An excess specific heat, $C^{\prime}(T)$, of non-magnetic…

Strongly Correlated Electrons · Physics 2009-10-31 V. N. Smolyaninova , Amlan Biswas , X. Zhang , K. H. Kim , Bog-Gi Kim , S-W. Cheong , R. L. Greene

The ability of an insulating solid to conduct heat is rarely effected by the application of a magnetic field. We have found, however, that the low temperature heat conduction of some solids increases by more than a factor of two with the…

Strongly Correlated Electrons · Physics 2007-05-23 B. Sales , R. Jin , D. Mandrus

Reversible control of magnetization by electric fields without assistance from a subsidiary magnetic field or electric current could help reduce the power consumption in spintronic devices. When increasing temperature above room…

The lattice thermal conductivity of the candidate thermoelectric material Mg$_3$Sb$_2$ is studied from first principles, with the inclusion of anharmonic, isotope, and boundary scattering processes, and via an accurate solution of the…

Materials Science · Physics 2018-12-11 Maria Barbara Maccioni , Roberta Farris , Vincenzo Fiorentini

We report a study on low-temperature heat transport of Kitaev magnet Na$_2$Co$_2$TeO$_6$, with the heat current and magnetic fields along the honeycomb spin layer (the $ab$ plane). The zero-field thermal conductivity of $\kappa^a_{xx}$ and…

Strongly Correlated Electrons · Physics 2024-06-19 Shuangkui Guang , Na Li , Qing Huang , Ke Xia , Yiyan Wang , Hui Liang , Yan Sun , Qiuju Li , Xia Zhao , Rui Leonard Luo , Gang Chen , Haidong Zhou , Xuefeng Sun

We report the results of direct measurement of remanent hysteresis loops on nanochains of BiFeO$_3$ at room temperature under zero and $\sim$20 kOe magnetic field. We noticed a suppression of remanent polarization by nearly $\sim$40\% under…

A 75 nm-thick Fe0.5Pt0.5 film is a ferromagnetic metal showing striped magnetic domains in remanence at room temperature. The magnetoresistance is characterized by varying the external temperature and the in-plane magnetic field intensity,…

Mesoscale and Nanoscale Physics · Physics 2026-05-29 C. P. Quinteros , L. Avilés-Félix , D. Goijman , L. Saba , D. Pérez Morelo , L. Granja , M. Granada , J. Milano

Transmission electron microscopy observations reveal the presence of complex superstructures and remarkable phase separation in association with Na-ordering phenomenon in y-Na0.5CoO2. Resistivity and magnetization measurements indicate that…

Strongly Correlated Electrons · Physics 2007-05-23 H. X. Yang , Y. G. Shi , C. J. Nie , D. Wu , L. X. Yang , C. Dong , H. C. Yu , H. R. Zhang , C. Q. Jin , J. Q. Li

Optical conductivity data s(w) of the colossal magneto-resistance (CMR) pyrochlore Tl2Mn2O7 are presented as functions of temperature (T) and externalmagnetic field (B). Upon cooling and upon applying B near the Curietemperature, where the…

Strongly Correlated Electrons · Physics 2009-11-07 H. Okamura , T. Koretsune , M. Matsunami , S. Kimura , T. Nanba , H. Imai , Y. Shimakawa , Y. Kubo

A coupling of the first-order paramagnetic-to-induced-ferromagnetic martensitic and the second-order antiferromagnetic-to-ferromagnetic metamagnetic transitions was found in MnNi0.8Fe0.2Ge alloy. Based on the coupling, a magneto-volume…

Materials Science · Physics 2014-08-26 E. K. Liu , Z. Y. Wei , Y. Li , G. D. Liu , H. Z. Luo , W. H. Wang , H. W. Zhang , G. H. Wu