Publications
X Author: A Kumar
2012
Kim, Y.-M, A Hatt, A Kumar, I Ivanov, A Morozovska, A Tselev, Y.H Chu, P Yu, M.D Biegalski, Ramamoorthy Ramesh, E Eliseev, S.J Pennycook, J Rondinelli, S.V Kalinin, and A.Y Borisevich."Unconventional Antiferroelectric Phase Stabilization in Thin Film BiFeO3 by Interface-Induced Rotoelectric Coupling Effect."Microscopy and Microanalysis
18 (2012) 412-413. DOI
2010
Kumar, A, S Denev, R.J Zeches, E Vlahos, N.J Podraza, A Melville, D.G Schlom, Ramamoorthy Ramesh, and V Gopalan."Probing mixed tetragonal/rhombohedral-like monoclinic phases in strained bismuth ferrite films by optical second harmonic generation."Applied Physics Letters
97 (2010). DOI
2009
Zeches, R.J, M.D Rossell, J.X Zhang, A.J Hatt, Q He, C.-H Yang, A Kumar, C.H Wang, A Melville, C Adamo, G Sheng, Y.-H Chu, J.F Ihlefeld, R Erni, C Ederer, V Gopalan, L.Q Chen, D.G Schldin, N.A Spaldin, L.W Martin, and Ramamoorthy Ramesh."A strain-driven morphotropic phase boundary in bifeO3."Science
326 (2009) 977-980. DOI
Ramirez, M.O, A Kumar, S.A Denev, N.J Podraza, X.S Xu, R.C Rai, Y.H Chu, J Seidel, L.W Martin, S.-Y Yang, E Saiz, J.F Ihlefeld, S Lee, J Klug, S.W Cheong, M.J Bedzyk, O Auciello, D.G Schlom, Ramamoorthy Ramesh, J Orenstein, J.L Musfeldt, and V Gopalan."Magnon sidebands and spin-charge coupling in bismuth ferrite probed by nonlinear optical spectroscopy."Physical Review B - Condensed Matter and Materials Physics
79 (2009). DOI
Xu, X.S, T.V Brinzari, S Lee, Y.H Chu, L.W Martin, A Kumar, S McGill, R.C Rai, Ramamoorthy Ramesh, V Gopalan, S.W Cheong, and J.L Musfeldt."Optical properties and magnetochromism in multiferroic BiFeO3."Physical Review B - Condensed Matter and Materials Physics
79 (2009). DOI
Ramirez, M.O, A Kumar, S.A Denev, Y.H Chu, J Seidel, L.W Martin, S.-Y Yang, R.C Rai, X.S Xue, J.F Ihlefeld, N.J Podraza, E Saiz, S Lee, J Klug, S.W Cheong, M.J Bedzyk, O Auciello, D.G Schlom, J Orenstein, Ramamoorthy Ramesh, J.L Musfeldt, A.P Litvinchuk, and V Gopalan."Spin-charge-lattice coupling through resonant multimagnon excitations in multiferroic BiFe O3."Applied Physics Letters
94 (2009). DOI
2008
Kumar, A, R.C Rai, N.J Podraza, S Denev, M Ramirez, Y.-H Chu, L.W Martin, J Ihlefeld, T Heeg, J Schubert, D.G Schlom, J Orenstein, Ramamoorthy Ramesh, R.W Collins, J.L Musfeldt, and V Gopalan."Linear and nonlinear optical properties of BiFeO3."Applied Physics Letters
92 (2008). DOI
Kumar, A, N.J Podraza, S Denev, J Li, L.W Martin, Y.-H Chu, Ramamoorthy Ramesh, R.W Collins, and V Gopalan."Linear and nonlinear optical properties of multifunctional PbV O3 thin films."Applied Physics Letters
92 (2008). DOI
Ramirez, M.O, M Krishnamurthi, S Denev, A Kumar, S.-Y Yang, Y.-H Chu, E Saiz, J Seidel, A.P Pyatakov, A Bush, D Viehland, J Orenstein, Ramamoorthy Ramesh, and V Gopalan."Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3."Applied Physics Letters
92 (2008). DOI
2007
Ihlefeld, J.F, A Kumar, V Gopalan, D.G Schlom, Y.B Chen, X.Q Pan, T Heeg, J Schubert, X Ke, P Schiffer, J Orenstein, L.W Martin, Y.H Chu, and Ramamoorthy Ramesh."Adsorption-controlled molecular-beam epitaxial growth of BiFe O3."Applied Physics Letters
91 (2007). DOI
Kumar, A, L.W Martin, S Denev, J.B Kortright, Y Suzuki, Ramamoorthy Ramesh, and V Gopalan."Polar and magnetic properties of PbV O3 thin films."Physical Review B - Condensed Matter and Materials Physics
75 (2007). DOI