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Pregled bibliografske jedinice broj: 527334

Symmetric and antisymmetric exchange anisotropies in quasi-one-dimensional CuSe2O5 as revealed by ESR


Herak, Mirta; Zorko, Andrej; Arčon, Denis; Potočnik, Anton; van Tol, Jan; Ozarowski, A.; Berger, Helmuth
Symmetric and antisymmetric exchange anisotropies in quasi-one-dimensional CuSe2O5 as revealed by ESR // Physical Review B - Condensed Matter and Materials Physics, 84 (2011), 18; 184436-1 doi:10.1103/PhysRevB.84.184436 (međunarodna recenzija, članak, znanstveni)


Naslov
Symmetric and antisymmetric exchange anisotropies in quasi-one-dimensional CuSe2O5 as revealed by ESR

Autori
Herak, Mirta ; Zorko, Andrej ; Arčon, Denis ; Potočnik, Anton ; van Tol, Jan ; Ozarowski, A. ; Berger, Helmuth

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 84 (2011), 18; 184436-1

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

Ključne riječi
1D spin systems; EPR; magnetic anisotropy

Sažetak
We present an electron spin resonance (ESR) study of single-crystalline spin chain-system CuSe2O5 in the frequency range between 9 GHz and 450 GHz. In a wide temperature range above the Neel temperature TN = 17 K we observe strong and anisotropic frequency dependence of a resonance linewidth. Although sizeable interchain interaction JIC = 0.01 J (J is the intrachain interaction) is present in this system, the ESR results agree well with the Oshikawa-Affleck theory for one-dimensional S = 1/2 Heisenberg antiferromagnet. This theory is used to extract the anisotropies present in CuSe2O5. We find that the symmetric anisotropic exchange Jc = (0.04 +/- 0.01) J and the antisymmetric Dzyaloshinskii-Moriya (DM) interaction D = (0.05 +/- 0.01) J are very similar in size in this system. Staggered-field susceptibility induced by the presence of the DM interaction is witnessed in the macroscopic susceptibility anisotropy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0352843-2846 - Defekti i interakcije izmjene u nižedimenzionalnim (D<3) magnetskim sistemima (Đuro Drobac, )

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Mirta Herak, (245704)

Časopis indeksira:


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


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