236 citations · 730 across the 15 of their papers we have counts for
15 papers
Antiferromagnetic Ordering in MnF(salen)
Erik Čižmár, Olivia N. Risset, Tong Wang +8
Antiferromagnetic order at K has been identified in Mn(III)F(salen), salen = HCNO, an linear-chain system. Using single crystals…
Electron Spin Resonance in a Spin-1/2 Heisenberg Strong-rung Ladder
A. N. Ponomaryov, M. Ozerov, L. Zviagina +8
Cu(CHN)Cl, a strong-rung spin-1/2 Heisenberg ladder compound, is probed by means of electron spin resonance (ESR) spectroscopy in the field-induced gapless phase ab…
Magnetic properties of carbon nanodisk and nanocone powders
Jozef Cernak, Geir Helgesen, Jozef Kovac +2
We have investigated the magnetic properties of carbon powders which consist of nanodisks, nanocones, and a small fraction of carbon-black particles. Magnetization measurements wer…
Spin Dynamics in Chains with Next-Nearest-Neighbor Exchange Interactions
M. Ozerov, A. A. Zvyagin, E. Čižmár +5
Low-energy magnetic excitations in the spin-1/2 chain compound (CHN)CuCl [known as (6MAP)CuCl] are probed by means of tunable-frequency electron spin resonance.…
Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (CHN)CuBr
E. Čižmár, M. Ozerov, J. Wosnitza +8
Magnetic excitations in the spin-ladder material (CHN)CuBr [BPCB] are probed by high-resolution multi-frequency electron spin resonance (ESR) spectroscopy. Our e…
Magnetic properties of the quasi-two-dimensional S = 1/2 Heisenberg antiferromagnet [Cu(pyz)2(HF2)]PF6
E. Cizmar, S. A. Zvyagin, R. Beyer +6
We report on high-field magnetization, specific-heat and electron spin resonance (ESR) studies of the quasi-two-dimensional spin-1/2 Heisenberg antiferromagnet [Cu(pyz)2(HF2)]PF6.…
Interplay of frustration and magnetic field in the two-dimensional quantum antiferromagnet Cu(tn)Cl
A. Orendáčová, E. Čižmár, J. S. Xia +11
Specific heat and ac magnetic susceptibility measurements, spanning low temperatures ( mK) and high magnetic fields ( T), have been performed on a two-dimensi…
THz-range free-electron laser ESR spectroscopy: techniques and applications in high magnetic fields
S. A. Zvyagin, M. Ozerov, E. Čižmár +6
The successful use of picosecond-pulse free-electron-laser (FEL) radiation for the continuous-wave THz-range electron spin resonance (ESR) spectroscopy has been demonstrated. The c…
Origin of magnetic moments in defective TiO2 single crystals
Shengqiang Zhou, E. Cizmar, K. Potzger +7
In this paper we show that ferromagnetism can be induced in pure TiO2 single crystals by oxygen ion irradiation. By combining x-ray diffraction, Raman-scattering, and electron spin…
Magnetic properties of the Haldane-gap material NENB
E. Cizmar, M. Ozerov, O. Ignatchik +9
Results of magnetization and high-field ESR studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2](BF4) (NENB) are reported. A definite signature of the Haldane state in…
Magnetocaloric Study of Spin Relaxation in `Frozen' Dipolar Spin Ice Dy2Ti2O7
M. Orendac, J. Hanko, E. Cizmar +3
The magnetocaloric effect of polycrystalline samples of pure and Y-doped dipolar spin ice Dy2Ti2O7 was investigated at temperatures from nominally 0.3 K to 6 K and in magnetic fiel…
Anisotropic photo-induced magnetism of a thin film
J. -H. Park, E. Čižmár, M. W. Meisel +4
A magneto-optically active thin film of RbCo[Fe(CN)] HO has been prepared using a sequential assembly method. Upon irradiation with light an…
Experimental study of MnCl3(C12H8N2) - an S = 2 Heisenberg antiferromagnetic chain
E. Cizmar, J. -H. Park, S. J. Gamble +8
The thermodynamic and magnetic properties of MnCl3(C12H8N2), have been studied down to 2 K. The material is an S = 2 antiferromagnetic linear chain that undergoes long-range orderi…
Photoinduced Magnetization in a Thin Fe-CN-Co Film
J. -H. Park, Y. D. Huh, E. Čižmár +3
The magnetization of a thin Fe-Co cyanide film has been investigated from 5 K to 300 K and in fields up to 500 G. Upon illumination with visible light, the magnetization of the fil…
Er2Ti2O7: Evidence of Order by Disorder in a Frustrated Antiferromagnet
J. D. M. Champion, M. J. Harris, P. C. W. Holdsworth +14
Er_2Ti_2O_7 has been suggested to be a realization of the frustrated < 111 > XY pyrochlore lattice antiferromagnet, for which theory predicts fluctuation-induced symmetry breaking…