Hyun-Jin Koo

Koo, H. J., Chang, S. T., & Velev, O. D. (2010). Ion-current diode with aqueous Gel/SiO2 nanofilm interfaces. Small (Weinheim An Der Bergstrasse, Germany), 6(13), 1393–1397.

Koo, H.-J., & Whangbo, M.-H. (2006). Importance of the O-M-O bridges (M = V5+, Mo6+) for the spin-exchange interactions in the magnetic oxides of Cu2+ ions bridged by MO4 tetrahedra: Spin-lattice models of Rb2Cu2(MoO4)(3), BaCu2V2O8, and KBa3Ca4Cu3V7O28. INORGANIC CHEMISTRY, 45(11), 4440–4447. https://doi.org/10.1021/ic060392w

Koo, H. J., Dai, D., & Whangbo, M. H. (2005). Importance of supersuperexchange interactions in determining the dimensionality of magnetic properties. Determination of strongly interacting spin exchange paths in A(2)CU(PO4)(2) (A = Ba, Sr), ACuP(2)O(7) (Ba, Ca, Sr, Pb), CaCuGe2O6, and Cu2UO2(PO4)(2) on the basis of qualitative spin dimer analysis. INORGANIC CHEMISTRY, 44(12), 4359–4365. https://doi.org/10.1021/ic050159i

Woodward, J. D., Choi, J., Musfeldt, J. L., Haraldsen, J. T., Wei, X., Koo, H. J., … Turnbull, M. M. (2005). Understanding the color properties of (C5H9NH3)(2)CuBr4 in high magnetic fields. PHYSICAL REVIEW B, 71(17). https://doi.org/10.1103/physrevb.71.174416

Rocquefelte, X., Goubin, F., Koo, H. J., Whangbo, M. H., & Jobic, S. (2004). Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases. INORGANIC CHEMISTRY, 43(7), 2246–2251. https://doi.org/10.1021/ic035383r

Whangbo, M. H., Dai, D., & Koo, H. J. (2004). Spin dimer and classical spin analyses of the ordered magnetic structures of alkali iron pyrophosphates NaFeP2O7 and LiFeP2O7. Dalton Transactions (Cambridge, England : 2003), (19), 3019–3025.

Whangbo, M. H., Koo, H. J., Dai, D., & Villesuzanne, A. (2003). A discussion on the apparently puzzling structural, electrical and magnetic properties of BaVS3. JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 384–388. https://doi.org/10.1016/S0022-4596(03)00346-3

Dai, D., Koo, H. J., & Whangbo, M. H. (2003). Analysis of the spin exchange interactions of ferromagnetic CdVO3 in terms of first principles and qualitative electronic structure calculations. JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 341–347. https://doi.org/10.1016/S0022-4596(03)00307-4

Soulard, C., Rocquefelte, X., Jobic, S., Dai, D., Koo, H. J., & Whangbo, M. H. (2003). Metal-ligand bonding and rutile- versus CdI2-type structural preference in platinum dioxide and titanium dioxide. JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 353–358. https://doi.org/10.1016/S0022-4596(03)00323-2

Koo, H. J., Seo, D. K., & Whangbo, M. H. (2001). Consequence of the metal-atom clustering on the magnetic properties in vanadium sulfide V5S8. JOURNAL OF SOLID STATE CHEMISTRY, 160(1), 287–291. https://doi.org/10.1006/jssc.2001.9260

Schlueter, J. A., Ward, B. H., Geiser, U., Wang, H. H., Kini, A. M., Parakka, J., … Gard, G. L. (2001). Crystal structure, physical properties and electronic structure of a new organic conductor beta ''-(BEDT-TTF)(2)SF5CHFCF2SO3. JOURNAL OF MATERIALS CHEMISTRY, 11(8), 2008–2013. https://doi.org/10.1039/b008735l

Jung, D., Koo, H. J., Dai, D., & Whangbo, M. H. (2001). Electronic structure study of scanning tunneling microscopy images of the rutile TiO2(110) surface and their implications on the surface relaxation. SURFACE SCIENCE, 473(3), 193–202. https://doi.org/10.1016/S0039-6028(00)00970-5

Rudko, G. Y., Long, V. C., Musfeldt, J. L., Koo, H. J., Whangbo, M. H., Revcolevschi, A., … Bernholdt, D. E. (2001). Electronic transitions in doped and undoped copper germanate. CHEMISTRY OF MATERIALS, 13(3), 939–944. https://doi.org/10.1021/cm000703f

Koo, H. J., & Whangbo, M. H. (2001). Examination of the anisotropic spin exchange interactions of CuM2O6 (M = Sb, V, Nb) by spin dimer analysis. JOURNAL OF SOLID STATE CHEMISTRY, 156(1), 110–116. https://doi.org/10.1006/jssc.2000.8969

Pigos, J. M., Jones, B. R., Zhu, Z. T., Musfeldt, J. L., Homes, C. C., Koo, H. J., … Gard, G. L. (2001). Infrared and optical properties of beta '-(ET)(2)SF5CF2SO3: Evidence for a 45 K spin peierls transition. CHEMISTRY OF MATERIALS, 13(4), 1326–1333. https://doi.org/10.1021/cm000839d

Manson, J. L., Huang, Q. Z., Lynn, J. W., Koo, H. J., Whangbo, M. H., Bateman, R., … Miller, J. S. (2001). Long-range magnetic order in Mn[N(CN)(2)](2)(pyz) {pyz =pyrazine} susceptibility, magnetization, specific heat, and neutron diffraction measurements and electronic structure calculations. Journal of the American Chemical Society, 123(1), 162–172. https://doi.org/10.1021/ja0024791

Gourdon, O., Evain, M., Jobic, S., Brec, R., Koo, H. J., Whangbo, M. H., … Chauvet, O. (2001). On the origin of the root 7 x root 7 superstructure and the anomalous magnetic and transport properties of the layered compound Sr6V9S22O2. INORGANIC CHEMISTRY, 40(12), 2898–2904. https://doi.org/10.1021/ic001434y

Koo, H. J., Whangbo, M. H., Coste, S., & Jobic, S. (2001). Spin dimer analysis for antiferromagnetic spin exchange interactions of magnetic solids with several unpaired electrons per spin site: Trends in the spin exchange parameters of the compounds consisting of MnF5 chains and CrX2 (X = O, S) layers. JOURNAL OF SOLID STATE CHEMISTRY, 156(2), 464–469. https://doi.org/10.1006/jssc.2000.9025

Koo, H. J., & Whangbo, M. H. (2001). Spin dimer analysis of the anisotropic spin exchange interactions in the distorted wolframite-type oxides CuWO4, CuMoO4-III, and Cu(Mo0.25W0.(75))O-4. INORGANIC CHEMISTRY, 40(9), 2161–2169. https://doi.org/10.1021/ic001445r

Whangbo, M. H., & Koo, H. J. (2001). Structural and electronic features of BaIrO3 causing the simultaneous occurrence of weak ferromagnetism and charge density wave formation. SOLID STATE COMMUNICATIONS, 118(10), 491–495. https://doi.org/10.1016/S0038-1098(01)00166-1

Jobic, S., Brec, R., Pasturel, A., Koo, H. J., & Whangbo, M. H. (2001). Theoretical study of possible iridium ditelluride phases attainable under high pressure. Journal of Solid State Chemistry, 162(1), 63–68. https://doi.org/10.1006/jssc.2001.9341

Koo, H. J., Suh, M. W., & Woo, J. L. (2001). Variance tolerancing and decomposition in short-staple spinning processes Part I: Modeling spun yarn strength through intrinsic components. Textile Research Journal, 71(1), 1–7. https://doi.org/10.1177/004051750107100101

Suh, M. W., Koo, H. J., & Woo, J. L. (2001). Variance tolerancing and decomposition in short-staple spinning processes part II: Simulations and applications to ring and OE spun yarns. TEXTILE RESEARCH JOURNAL, 71(2), 105–111. https://doi.org/10.1177/004051750107100203

Whangbo, M. H., Koo, H. J., & Lee, K. S. (2000). Analysis of nearest-neighbor spin exchange interactions by molecular orbital calculations: anisotropic spin exchange interactions in MV3O7 (M = Cd, Ca, Sr) and alpha '-NaV2O5. Solid State Communications, 114(1), 27–32. https://doi.org/10.1016/s0038-1098(99)00571-2

Koo, H. J., & Whangbo, M. H. (2000). Analysis of the spin exchange interactions in the extended magnetic solids K2NiF4, K2CuF4, La2CuO4, Nd2CuO4, KNiF3, and KCuF3. JOURNAL OF SOLID STATE CHEMISTRY, 151(1), 96–101. https://doi.org/10.1006/jssc.2000.8627

Koo, H. J., & Whangbo, M. H. (2000). Analysis of the spin exchange interactions in the three phases of vanadium pyrophosphate, (VO)(2)P2O7, in terms of spin-orbital interaction energy. INORGANIC CHEMISTRY, 39(16), 3599–3604. https://doi.org/10.1021/ic000046t

Koo, H. J., Whangbo, M. H., Picard, S., Jobic, S., Potel, M., & Gougeon, P. (2000). Electronic band structure study of A(2)Mo(9)S(11) (A=K, Rb) and K1.8Mo9S11. JOURNAL OF SOLID STATE CHEMISTRY, 155(1), 124–128. https://doi.org/10.1006/jssc.2000.8912

Whangbo, M. H., & Koo, H. J. (2000). Investigation of the spin exchange interactions in the nanotube system Na2V3O7 by spin dimer analysis. SOLID STATE COMMUNICATIONS, 115(12), 675–678. https://doi.org/10.1016/S0038-1098(00)00258-1

Schiller, M., Schmidt, W., Balthes, E., Schweitzer, D., Koo, H. J., Whangbo, M. H., … Strunz, W. (2000). Investigations of the Fermi surface of a new organic metal: (BEDT-TTF)(4)[Ni(dto)(2)]. EUROPHYSICS LETTERS, 51(1), 82–88. https://doi.org/10.1209/epl/i2000-00329-2

Hagrman, P. J., Laduca, R. L., Koo, H. J., Rarig, R., Haushalter, R. C., Whangbo, M. H., & Zubieta, J. (2000). Ligand influences on the structures of molybdenum oxide networks. Inorganic Chemistry, 39(19), 4311–4317. https://doi.org/10.1021/ic0004961

Bartlett, P. N., Essex, J. W., Koo, H. J., Nandhakumar, I. S., Robertson, N., & Whangbo, M. H. (2000). Molecular self-assembly on surfaces of organic conducting salts: Epitaxial monolayer films of naphthalene on the (001) surface of (TMTSF)(2)PF6. JOURNAL OF PHYSICAL CHEMISTRY B, 104(31), 7394–7402. https://doi.org/10.1021/jp000013z

Jones, B. R., Olejniczak, I., Dong, J., Pigos, J. M., Zhu, Z. T., Garlach, A. D., … Gard, G. L. (2000). Optical spectra and electronic band structure calculations of beta ''-(ET)(2)SF5RSO3 (R = CH2CF2, CHFCF2, and CHF): Changing electronic properties by chemical tuning of the counterion. CHEMISTRY OF MATERIALS, 12(8), 2490–2495. https://doi.org/10.1021/cm000349l

Whangbo, M. H., & Koo, H. J. (2000). Origin of the spin gap in sodium vanadium bronze Na9V14O35. SOLID STATE COMMUNICATIONS, 115(3), 115–119. https://doi.org/10.1016/S0038-1098(00)00159-9

Koo, H. J., & Whangbo, M. H. (2000). Spin dimer analysis of the spin exchange interactions of the vanadium oxides AV(4)O(9) (A = Ca, Sr, Cs-2, NH2(CH2)(4)NH2). JOURNAL OF SOLID STATE CHEMISTRY, 153(2), 263–269. https://doi.org/10.1006/jssc.2000.8753

Jung, D., Koo, H. J., & Whangbo, M. H. (2000). Study of the 18-electron band gap and ferromagnetism in semi- Heusler compounds by nea-spin-polarized electronic band structure calculations. Journal of Molecular Structure [Including Theochem], 527(2000 Aug. 4), 113–119.

Jobic, S., Brec, R., Chateau, C., Haines, J., Leger, J. M., Koo, H. J., & Whangbo, M. H. (2000). Synthesis and crystal structure determination of a new pressure-induced iridium ditelluride phase, m-IrTe2, and comparison of the crystal structures and relative stabilities of various IrTe2 polymorphs. INORGANIC CHEMISTRY, 39(19), 4370–4373. https://doi.org/10.1021/ic000351e

Koo, H. J., & Whangbo, M. H. (1999). Analysis of bonding and d-electron count in the transition-metal carbides and transition-metal-silicide carbides with discrete linear M-C-M units (M = Cr, Fe, Re) by electronic structure calculations. INORGANIC CHEMISTRY, 38(9), 2204–2210. https://doi.org/10.1021/ic981309a

Koo, H. J., & Whangbo, M. H. (1999). Analysis of the spin-spin interactions in layered oxides alpha '-NaV2O5, CaV2O5 and MgV2O5 and the spin-Peierls distortion in alpha '-NaV2O5 by molecular orbital, Madelung energy and bond valence sum calculations. SOLID STATE COMMUNICATIONS, 111(7), 353–360. https://doi.org/10.1016/S0038-1098(99)00179-9

Lee, K. S., Koo, H. J., Ren, J., & Whangbo, M. H. (1999). Calculations and analysis of the electronic structures of transition-metal phosphosilicides Cu4SiP8, IrSi3P3, CoSi3P3, and FeSi4P4. JOURNAL OF SOLID STATE CHEMISTRY, 147(1), 11–18. https://doi.org/10.1006/jssc.1999.8142

Suh, M. W., Koo, H.-J., & Watson, M. D. (1999). Development of optimal HVI strength index for prediction of yarn tensile strength. Beltwide Cotton Conferences. Proceedings, 1(1999), 706–708.

Zhu, Z., Long, V. C., Musfeldt, J. L., Wei, X., Sarrao, J., Fisk, Z., … Whangbo, M. H. (1999, December). High field optical response of eta-Mo4O11. JOURNAL DE PHYSIQUE IV, Vol. 9, pp. 251–253. https://doi.org/10.1051/jp4:19991063

Wang, H. H., VanZile, M. L., Schlueter, J. A., Geiser, U., Kini, A. M., Sche, P. P., … Gard, G. L. (1999). In-plane ESR microwave conductivity measurements and electronic band structure studies of the organic superconductor beta ''-(BEDT-TTF)(2)SF5CH2CF2SO3. JOURNAL OF PHYSICAL CHEMISTRY B, 103(26), 5493–5499. https://doi.org/10.1021/jp991268j

Koo, H. J., & Suh, M. W. (1999). Maximizing yarn and fabric strength through variance of HVI elongation. TEXTILE RESEARCH JOURNAL, 69(6), 447–456. https://doi.org/10.1177/004051759906900609

Long, V. C., Zhu, Z., Musfeldt, J. L., Wei, X., Koo, H. J., Whangbo, M. H., … Revcolevschi, A. (1999). Polarized optical reflectance and electronic band structure of alpha '-NaV2O5. PHYSICAL REVIEW B, 60(23), 15721–15727. https://doi.org/10.1103/physrevb.60.15721

Lee, K. S., Koo, H. J., & Whangbo, M. H. (1999). Spin-spin interactions in the oxides A(3)M ' MO6 (M = Rh, Ir; A = Ca, Sr; M ' = alkaline earth, Zn, Cd, Na) of the K4CdCl6 structure type examined by electronic structure calculations. INORGANIC CHEMISTRY, 38(9), 2199–2203. https://doi.org/10.1021/ic9813819

Suh, M. W., Koo, H.-J., & Watson, M. D. (1998). Estimation of HVI bundle modulus and toughness as determinants to tensile properties of spun yarns. Beltwide Cotton Conferences. Proceedings, 2(1998), 1530–1536.

Koo, H. J., Whangbo, M. H., McCarroll, W. H., Greenblatt, M., Gautier, R., Halet, J. F., & Gougeon, P. (1998). On the origin of the anomalous electrical resistivity of LnMo(5)O(8) (Ln = trivalent rare earth). SOLID STATE COMMUNICATIONS, 108(8), 539–544. https://doi.org/10.1016/S0038-1098(98)00407-4

Suh, M. W., Koo, H.-J., & Cui, X. (1998). Prediction of yarn tensile properties based on HVI testing of 36 U.S. upland cottons. Beltwide Cotton Conferences. Proceedings, 1(1998), 786–790.

Koo, H. J., Whangbo, M. H., & Kennedy, B. J. (1998). Similarities and differences in the structural and electronic properties of ruthenium and iridium pyrochlores A(2)M(2)O(7-y) (M = Ru, Ir). JOURNAL OF SOLID STATE CHEMISTRY, 136(2), 269–273. https://doi.org/10.1006/jssc.1997.7705

Suh, M. W., Woo, J. L., & Koo, H. J. (1997). Spinning quality/process improvement through variance tolerancing. Beltwide Cotton Conferences. Proceedings, 1(1997), 691–696.