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Quantum effects fundamentally engender exotic physical phenomena in macroscopic systems, which advance next-generation technological applications. Rotational tunneling that represents the quantum phenomenon of the librational motion of…

Numerical calculations indicate that by suitably controlling the individual gate voltages of a capacitively coupled parallel double quantum dot, with each quantum dot coupled to one of two independent non-magnetic channels, this system can…

Mesoscale and Nanoscale Physics · Physics 2013-03-05 Carlos A. Busser , Adrian E. Feiguin , George B. Martins

We measured the magneto-optical response of (La$_{0.4}$Pr$_{0.6}$)$_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$ in order to investigate the microscopic aspects of the magnetic field driven spin-glass insulator to ferromagnetic metal transition. Application…

Strongly Correlated Electrons · Physics 2009-11-11 J. Cao , J. T. Haraldsen , R. C. Rai , S. Brown , J. L. Musfeldt , Y. J. Wang , X. Wei , M. Apostu , R. Suryanarayanan , A. Revcolevschi

We investigate different approaches towards a nonvolatile switching of the remanent magnetization in single-crystalline ferromagnets at room temperature via elastic strain using ferromagnetic thin film/piezoelectric actuator hybrids. The…

Based on recent experimental evidence for a spin polarized ground state in the insulating phase of the two-dimensional electron system, we propose that ferromagnetic spin fluctuations lead to an attractive interaction in the triplet channel…

Strongly Correlated Electrons · Physics 2009-11-07 Claudio Chamon , Eduardo R. Mucciolo , Antonio H. Castro Neto

Electric control of magnetism is a vision which drives intense research on magnetic semiconductors and multiferroics. Recently, also ultrathin metallic films were reported to show magnetoelectric effects at room temperature. Here we…

We study the effects of electrostatic gating on the current-induced phenomena in ultrathin ferromagnet/heavy metal heterostructures. We utilize heterodyne detection and analysis of symmetry with respect to the direction of the magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-03-16 Ronghua Liu , WengLee Lim , Sergei Urazhdin

The paramagnetic insulator to ferromagnetic metal transition in Lanthanum manganites and the associated magnetoresistive phenomena is treated by considering the localization due to random hopping induced by slowly fluctuating spin…

Condensed Matter · Physics 2009-10-28 C. M. Varma

Gate-tunable spin-dependent properties could be induced in graphene at room temperature through magnetic proximity effect by placing it in contact with a metallic ferromagnet. Because strong chemical bonding with the metallic substrate…

Mesoscale and Nanoscale Physics · Physics 2020-11-17 Mihovil Bosnar , Ivor Lončarić , P. Lazić , K. D. Belashchenko , Igor Žutić

We study magnetic state and electron transport properties of composite multiferroic system consisting of a granular ferromagnetic thin film placed above the ferroelectric substrate. Ferroelectricity and magnetism in this case are coupled by…

Disordered Systems and Neural Networks · Physics 2015-06-19 O. G. Udalov , N. M. Chtchelkatchev , I. S. Beloborodov

Ferromagnetic transitions between quantum Hall states with different polarization at a fixed filling factor can be studied by varying the ratio of cyclotron and Zeeman energies in tilted magnetic field experiments. However, an ability to…

A systematic study of thermomagnetic irreversibility CoS$_{1.76}$Se$_{0.24}$ has been carried out. Our study shows that the resistivity at low temperature can be tuned by cooling in different magnetic fields and the critical field required…

Strongly Correlated Electrons · Physics 2016-07-22 Saroj Kumar Mishra , R Rawat

Some well-established examples of itinerant-electron ferromagnetism in one dimension occur in a Mott-insulating phase. We examine the consequences of doping a ferromagnetic insulator and cou- pling magnons to gapless charge fluctuations.…

Strongly Correlated Electrons · Physics 2015-04-28 Hudson Pimenta , Luiz N. Oliveira , Rodrigo G. Pereira

2D van der Waals (vdW) ferromagnets have emerged as promising materials for spintronic applications due to their unique magnetic properties and tunability. Controlling ferromagnetism via external stimuli is critical for both fundamental…

Materials Science · Physics 2025-08-12 Riku Iimori , Yuta Kodani , Shaojie Hu , Takashi Kimura

Hanle magnetoresistance (HMR) is a type of magnetoresistance where interplay of the spin Hall effect, Hanle-type spin precession, and spin-dependent scattering at the top/bottom surfaces in a heavy metal controls the effect. In this study,…

Mesoscale and Nanoscale Physics · Physics 2023-02-17 Yuu Maruyama , Ryo Ohshima , Ei Shigematsu , Yuichiro Ando , Masashi Shiraishi

In strongly correlated electronic systems, such as manganites, the global transport behavior depends sensitively on the spin ordering, whose alteration often requires a large external magnetic field. Here we show that the spin ordering in…

Strongly Correlated Electrons · Physics 2014-07-01 T. Z. Ward , Z. Gai , X. Y. Xu , H. W. Guo , L. F. Yin , J. Shen

Controlling collective electronic phases in low-dimensional materials is a central challenge for developing technologies based on charge-density waves. Here, we report that perpendicular electric and magnetic fields can be used to tune…

In this paper we have created a strain driven single crystal like ferromagnetic insulating (FMI) state in a PLD grown thin film of low doped LCMO(X = 0.15)on NGO(100) substrate and make a thorough study of strain effects on the electric and…

Strongly Correlated Electrons · Physics 2013-01-01 Rajib Nath , Sudeshna Samanta , A. K. Raychaudhuri

Spintronics devices rely on spin-dependent transport behavior evoked by the presence of spin-polarized electrons. Transport through nanostructures, on the other hand, is dominated by strong Coulomb interaction. We study a model system in…

Mesoscale and Nanoscale Physics · Physics 2018-05-09 Jürgen König , Jan Martinek , Jozef Barnas , Gerd Schön

The combination of spin-orbit coupling driven effects and multiferroic tunneling properties was explored experimentally in thin Pt/Co/BTO/LSMO multilayers. The presence of a Pt heavy metal allows for the spin current-induced magnetization…

Mesoscale and Nanoscale Physics · Physics 2024-11-01 Jakub Pawlak , Witold Skowroński , Piotr Kuświk , Félix Casanova , Marek Przybylski