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Pregled bibliografske jedinice broj: 690643

Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy


Herak, Mirta; Grubišić Čabo, Antonija; Žilić, Dijana; Rakvin, Boris; Salamon, Krešimir; Milat, Ognjen; Berger, Helmuth
Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy // Physical Review B - Condensed Matter and Materials Physics, 89 (2014), 18; 184411-1 doi:10.1103/PhysRevB.89.184411 (međunarodna recenzija, članak, znanstveni)


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Naslov
Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy

Autori
Herak, Mirta ; Grubišić Čabo, Antonija ; Žilić, Dijana ; Rakvin, Boris ; Salamon, Krešimir ; Milat, Ognjen ; Berger, Helmuth

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 89 (2014), 18; 184411-1

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

Ključne riječi
Low-dimensional spin systems; selectron spin resonance; anisotropic exchange

Sažetak
We present an experimental study of macroscopic and microscopic magnetic anisotropy of a novel spin tetramer system SeCuO3 using torque magnetometry and ESR spectroscopy. Large rotation of macroscopic magnetic axes with temperature observed from torque magnetometry agrees reasonably well with the rotation of the g tensor above T = 50 K. Below 50 K the g tensor is temperature – independent, while macroscopic magnetic axes continue to rotate. Additionally, the susceptibility anisotropy has a temperature dependence which cannot be reconciled with the isotropic Heisenberg model of interactions between spins. ESR linewidth analysis shows that anisotropic exchange interaction must be present in SeCuO3. These findings strongly support the presence of anisotropic exchange interactions in the Hamiltonian of the studied system. Below T_N = 8 K the system enters long - range antiferromagnetically ordered state with easy axis along < -101 >∗ direction. Small but significant rotation of magnetic axes is also observed in the antiferromagnetically ordered state suggesting strong spin-lattice coupling in this system.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
035-0352843-2844 - Veza strukturnih i fizikalnih svojstava materijala kontrolirane dimenzionalnosti (Milat, Ognjen, MZOS ) ( POIROT)
035-0352843-2846 - Defekti i interakcije izmjene u nižedimenzionalnim (D<3) magnetskim sistemima (Drobac, Đuro, MZOS ) ( POIROT)
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Ilakovac-Kveder, Marina, MZOS ) ( POIROT)

Ustanove:
Institut za fiziku, Zagreb,
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Boris Rakvin (autor)

Avatar Url Ognjen Milat (autor)

Avatar Url Dijana Žilić (autor)

Avatar Url Krešimir Salamon (autor)

Avatar Url Mirta Herak (autor)

Citiraj ovu publikaciju

Herak, Mirta; Grubišić Čabo, Antonija; Žilić, Dijana; Rakvin, Boris; Salamon, Krešimir; Milat, Ognjen; Berger, Helmuth
Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy // Physical Review B - Condensed Matter and Materials Physics, 89 (2014), 18; 184411-1 doi:10.1103/PhysRevB.89.184411 (međunarodna recenzija, članak, znanstveni)
Herak, M., Grubišić Čabo, A., Žilić, D., Rakvin, B., Salamon, K., Milat, O. & Berger, H. (2014) Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 89 (18), 184411-1 doi:10.1103/PhysRevB.89.184411.
@article{article, year = {2014}, pages = {184411-1-184411-14}, DOI = {10.1103/PhysRevB.89.184411}, keywords = {Low-dimensional spin systems, selectron spin resonance, anisotropic exchange}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.89.184411}, volume = {89}, number = {18}, issn = {1098-0121}, title = {Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy}, keyword = {Low-dimensional spin systems, selectron spin resonance, anisotropic exchange} }
@article{article, year = {2014}, pages = {184411-1-184411-14}, DOI = {10.1103/PhysRevB.89.184411}, keywords = {Low-dimensional spin systems, selectron spin resonance, anisotropic exchange}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.89.184411}, volume = {89}, number = {18}, issn = {1098-0121}, title = {Magnetic anisotropy of spin tetramer system SeCuO3 studied by torque magnetometry and ESR spectroscopy}, keyword = {Low-dimensional spin systems, selectron spin resonance, anisotropic exchange} }

Časopis indeksira:


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


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