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Pregled bibliografske jedinice broj: 616908

Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3


Živković, Ivica; Pajić, Damir; Ivek, Tomislav; Berger, Helmut
Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3 // Physical Review B - Condensed Matter and Materials Physics, 85 (2012), 22; 224402-1 doi:10.1103/PhysRevB.85.224402 (međunarodna recenzija, članak, znanstveni)


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Naslov
Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3

Autori
Živković, Ivica ; Pajić, Damir ; Ivek, Tomislav ; Berger, Helmut

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 85 (2012), 22; 224402-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ferrimagnet; magnetoelectric; crystal Cu2OSeO3; magnetic transitions; dielectric

Sažetak
We report a detailed single-crystal investigation of a magnetoelectric ferrimagnet Cu2OSeO3 using dc magnetization and ac susceptibility along the three principal directions [100], [110], and [111]. We have observed that in small magnetic fields two magnetic transitions occur, one at Tc=57 K and the second one at TN=58 K. At Tc the nonlinear susceptibility reveals the emergence of the ferromagnetic component and below Tc the magnetization measurements show the splitting between field-cooled and zero-field-cooled regimes. Above 1000 Oe the magnetization saturates and the system is in a single domain state. The temperature dependence of the saturation below Tc can be well described by μ(T)=μ(0)[1−(T/Tc)2]β, with μ(0)=0.56μB/Cu, corresponding to the 3-up-1-down configuration. The dielectric constant measured on a thin single crystal shows a systematic deviation below the transition, indicating an intrinsic magnetoelectric effect.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
035-0000000-2836 - Jako korelirani anorganski, organski i biomaterijali (Tomić, Silvia, MZOS ) ( POIROT)
035-0352843-2845 - Kvantni magneti: Osnovna stanja u kompeticiji (Prester, Mladen, MZOS ) ( POIROT)
119-1191458-1017 - Nanomagneti (Zadro, Krešo, MZOS ) ( POIROT)

Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Ivica Živković (autor)

Avatar Url Damir Pajić (autor)

Avatar Url Tomislav Ivek (autor)

Citiraj ovu publikaciju

Živković, Ivica; Pajić, Damir; Ivek, Tomislav; Berger, Helmut
Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3 // Physical Review B - Condensed Matter and Materials Physics, 85 (2012), 22; 224402-1 doi:10.1103/PhysRevB.85.224402 (međunarodna recenzija, članak, znanstveni)
Živković, I., Pajić, D., Ivek, T. & Berger, H. (2012) Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3. Physical Review B - Condensed Matter and Materials Physics, 85 (22), 224402-1 doi:10.1103/PhysRevB.85.224402.
@article{article, year = {2012}, pages = {224402-1-224402-7}, DOI = {10.1103/PhysRevB.85.224402}, keywords = {ferrimagnet, magnetoelectric, crystal Cu2OSeO3, magnetic transitions, dielectric}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.85.224402}, volume = {85}, number = {22}, issn = {1098-0121}, title = {Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3}, keyword = {ferrimagnet, magnetoelectric, crystal Cu2OSeO3, magnetic transitions, dielectric} }
@article{article, year = {2012}, pages = {224402-1-224402-7}, DOI = {10.1103/PhysRevB.85.224402}, keywords = {ferrimagnet, magnetoelectric, crystal Cu2OSeO3, magnetic transitions, dielectric}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.85.224402}, volume = {85}, number = {22}, issn = {1098-0121}, title = {Two-step transition in a magnetoelectric ferrimagnet Cu2OSeO3}, keyword = {ferrimagnet, magnetoelectric, crystal Cu2OSeO3, magnetic transitions, dielectric} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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