Ferromagnetism articles within Nature Communications

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• Article
  25 March 2015 | Open Access

  Ferromagnetism induced by entangled charge and orbital orderings in ferroelectric titanate perovskites

  Magnetic insulators often display antiferromagnetic ordering owing to implications from the Pauli exclusion principle. Here, the authors predict ferromagnetism on the basis of intra-site Hund's rules in ferroelectric titanate superlattices showing charge and Jahn–Teller induced orbital orderings.

  • N. C. Bristowe
  • , J. Varignon
  •  & Ph. Ghosez

• Article | 10 March 2015

  Mesoporous bismuth ferrite with amplified magnetoelectric coupling and electric field-induced ferrimagnetism

  Bismuth ferrite is an important room temperature multiferroic material where magnetism and ferroelectricity are coupled. Here, the authors utilize a wet chemical synthesis method to create strained nanoporous bismuth ferrite with enhanced magnetoelectric coupling and elevated magnetic moments.

  • Thomas E. Quickel
  • , Laura T. Schelhas
  •  & Sarah H. Tolbert

• Article | 04 February 2015

  Visualization of a ferromagnetic metallic edge state in manganite strips

  Boundary effects play a strong role in the electronic properties of structured manganites. Here, Du et al. demonstrate the existence of ferromagnetic metallic edge states and an enhanced metal–insulator transition temperature in patterned strips of manganite which emerge because of broken symmetry effects.

  • Kai Du
  • , Kai Zhang
  •  & Jian Shen

• Article
  04 February 2015 | Open Access

  Emerging magnetic order in platinum atomic contacts and chains

  The development of magnetism in metallic atomic chains is a widely debated phenomenon, of relevance to atomic-scale spintronics. Here, Strigl et al. measure the magneto-conductance of platinum break junctions stretched over sub-atomic distances, evidencing the evolution of distinct magnetic order.

  • Florian Strigl
  • , Christopher Espy
  •  & Torsten Pietsch

• Article | 29 January 2015

  Probing electric field control of magnetism using ferromagnetic resonance

  Multiferroic BiFeO₃ is promising for applications where electric and magnetic fields need to be coupled, for example, in magnetic data storage. Here, combining theory and experiment the authors provide a microscopic insight into the switching of magnetization by electric fields in BiFeO₃.

  • Ziyao Zhou
  • , Morgan Trassin
  •  & Nian X. Sun

• Article | 27 January 2015

  Long-living terahertz magnons in ultrathin metallic ferromagnets

  The technological application of ultrafast terahertz magnons in itinerant ferromagnetic nanostructures is currently limited by magnon relaxation due to Landau damping. Here, Qin et al. demonstrate suppressed Landau damping and enhanced magnon lifetimes in ultrathin films of Fe–Pd alloy.

  • H. J. Qin
  • , Kh. Zakeri
  •  & J. Kirschner

• Article | 23 December 2014

  Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure

  The interaction between ferroelectricity and magnetism is of interest for the use in magnetic information storage devices. Here, the authors achieve the coupling of ferroelectric and ferromagnetic order in an oxide heterostructure by ultrashort optical pulses, offering the optical control of these effects.

  • Y. M. Sheu
  • , S. A. Trugman
  •  & R. P. Prasankumar

• Article | 25 September 2014

  Room-temperature electronically-controlled ferromagnetism at the LaAlO₃/SrTiO₃ interface

  The interface between complex oxides can show effects such as superconductivity or magnetism that can be controlled through parameters such as carrier density. Here, the authors use magnetic force microscopy to study the magnetism at the interface between LaAlO₃/SrTiO₃and its dependency on charge carriers.

  • Feng Bi
  • , Mengchen Huang
  •  & Jeremy Levy

• Article | 05 September 2014

  Ferroic nature of magnetic toroidal order

  Long-range order of electric or magnetic dipoles leads to ferroic properties such as ferromagnetism or ferroelectricity. Here, the authors find that the previously observed magnetic toroidal order in LiCoPO₄represents its own ferroic order, arising from the violation of space- and time-inversion symmetry.

  • Anne S. Zimmermann
  • , Dennis Meier
  •  & Manfred Fiebig

• Article
  28 August 2014 | Open Access

  Visualizing domain wall and reverse domain superconductivity

  When superconductivity emerges in a thin superconductor grown on a ferromagnet, it does so in an array of interacting superconducting and normally conducting channels. Maria Iavarone and colleagues use scanning tunnelling microscopy to image how these channels form and interact.

  • M. Iavarone
  • , S. A. Moore
  •  & S. D. Bader

• Article | 26 August 2014

  Reversible control of spin-polarized supercurrents in ferromagnetic Josephson junctions

  The ability to manipulate spin-polarized supercurrents could enable the development of superconducting spintronic devices whose performance exceeds that of conventional spintronics. Banerjee et al.demonstrate a superconducting analogue of the archetypical spintronic device, the spin valve.

  • N. Banerjee
  • , J.W.A. Robinson
  •  & M. G. Blamire

• Article | 09 July 2014

  Correlating interfacial octahedral rotations with magnetism in (LaMnO_3+δ)_N/(SrTiO₃)_N superlattices

  Layered oxide heterostructures are widely studied because of the new quantum states that can arise at the interface between the oxide materials used. Here, the authors are able to link the rotation of crystallographic oxygen octahedra at the interface to a modified ferromagnetic state in such heterostructures.

  • Xiaofang Zhai
  • , Long Cheng
  •  & Changgan Zeng

• Article
  18 June 2014 | Open Access

  Magnetization amplified by structural disorder within nanometre-scale interface region

  Atomic disordering in antiphase boundary regions is believed to deteriorate ferromagnetic spin order in many alloys and compounds. Here, using electron microscopy, Murakami et al. report the unusual relationship between thermal antiphase boundaries and ferromagnetic spin order in Fe₇₀Al₃₀.

  • Y. Murakami
  • , K. Niitsu
  •  & D. Shindo

• Article | 28 May 2014

  Near room-temperature multiferroic materials with tunable ferromagnetic and electrical properties

  The combination of magnetism and ferroelectricity makes multiferroics of interest for applications such as data storage. Here, the authors predict a new class of multiferroics near room temperature, consisting of oxide superlattices whose electrical and ferromagnetic properties can be easily controlled.

  • Hong Jian Zhao
  • , Wei Ren
  •  & L. Bellaiche

• Article | 21 January 2014

  Strong ferromagnetism at the surface of an antiferromagnet caused by buried magnetic moments

  Europium-based materials are interesting for magnetic devices because divalent europium carries a large spin-magnetic moment. Chikina et al. show that the non-magnetic Si-Rh-Si surface trilayer of the antiferromagnet EuRh₂Si₂reveals a surface state with large spin splitting controllable by temperature.

  • A. Chikina
  • , M. Höppner
  •  & D. V. Vyalikh

• Article | 06 January 2014

  Bulk magnetoelectricity in the hexagonal manganites and ferrites

  Numerous unusual effects like topological defects and coupling of different ferroic orders go hand in hand with improper ferroelectricity. Using various theoretical methods, the authors show that improper ferroelectricity also induces a bulk magnetization and a bulk magnetoelectric effect.

  • Hena Das
  • , Aleksander L. Wysocki
  •  & Craig J. Fennie