Soongsil University

We investigated the magnetic and optical properties of [(LaMnO3)n/(SrTiO3)8]20 (n = 1, 2, and 8) superlattices grown by pulsed laser deposition. We found a weak ferromagnetic and s…

cond-mat.str-el2010★ 25 cited

Electronic structure and anomalous band-edge absorption feature in multiferroic MnWO4: An optical spectroscopic study

Woo Seok Choi, K. Taniguchi, S. J. Moon +6

We investigated the electronic structure and lattice dynamics of multiferroic MnWO4 by optical spectroscopy. With variation of polarization, temperature, and magnetic field, we obt…

cond-mat.str-el2009★ 21 cited

Oxygen vacancy induced re-entrant spin glass behavior in multiferroic ErMnO3 thin films

S. Y. Jang, D. Lee, J. -H. Lee +4

Epitaxial thin films of hexagonal ErMnO3 fabricated on Pt(111)/Al2O3(0001) and YSZ(111) substrates exhibited both ferroelectric character and magnetic ordering at low temperatures.…

cond-mat.str-el2008★ 496 cited

Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5 $d$ Transition Metal Oxides Sr $_{n + 1}$ Ir $_{n}$ O $_{3 n + 1}$ ( $n$ =1, 2, and $\infty$ )

S. J. Moon, H. Jin, K. W. Kim +8

We investigated the electronic structures of the 5 $d$ Ruddlesden-Popper series Sr $_{n + 1}$ Ir $_{n}$ O $_{3 n + 1}$ ( $n$ =1, 2, and $\infty$ ) using optical spectroscopy and first-principles…

cond-mat.str-el2007★ 60 cited

Surface versus bulk characterization of the electronic inhomogeneity in a VO_{2} film

Y. J. Chang, J. S. Yang, Y. S. Kim +6

We investigated the inhomogeneous electronic properties at the surface and interior of VO_{2} thin films that exhibit a strong first-order metal-insulator transition (MIT). Using t…

cond-mat.str-el2007★ 13 cited

Orbital-Driven Electronic Structure Changes and the Resulting Optical Anisotropy of the Quasi-Two-Dimensional Spin Gap Compound La4Ru2O10

S. J. Moon, W. S. Choi, S. J. Kim +4

We investigated the electronic response of the quasi-two-dimensional spin gap compound La4Ru2O10 using optical spectroscopy. We observed drastic changes in the optical spectra as t…

Charge states and magnetic ordering in LaMnO3/SrTiO3 superlattices

Electronic structure and anomalous band-edge absorption feature in multiferroic MnWO4: An optical spectroscopic study

Oxygen vacancy induced re-entrant spin glass behavior in multiferroic ErMnO3 thin films

Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5d Transition Metal Oxides Srn+1​Irn​O3n+1​ (n=1, 2, and ∞)

Surface versus bulk characterization of the electronic inhomogeneity in a VO_{2} film

Orbital-Driven Electronic Structure Changes and the Resulting Optical Anisotropy of the Quasi-Two-Dimensional Spin Gap Compound La4Ru2O10

Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5 $d$ Transition Metal Oxides Sr $_{n + 1}$ Ir $_{n}$ O $_{3 n + 1}$ ( $n$ =1, 2, and $\infty$ )