Growth, domain structure, and magnetic properties of CaMnO3(110) and La0.7Ca0.3MnO3(110) layers synthesized on hexagonal YMnO3(0001)

Oxide heterostructures based on cubic perovskite have been studied widely but there has been little interest in the combination of different polymorphs, such as hexagonal and cubic manganites, into a single heterostructure. This paper reports the growth of heterostructures composed of two manganite compounds with different in-plane lattice types, cubic CaMnO3 (CMO) and hexagonal YMnO3 (YMO), via pulsed laser deposition. The CMO layer grew on the YMO(0001) plane despite the lattice type mismatch. In this heterostructure, the YMO(0001) and CMO(110) planes were parallel to the interface, whereas YMO(−2110) and CMO(−11−2) were perpendicular to it, satisfying YMO(−2110)//CMO(−11−2). This approach to combine two compounds with a lattice type mismatch enables the construction of YMO/La0.7Ca0.3MnO3 (LCMO)/YMO trilayers, which are potential multiferroic systems. Such a heterostructure has an interface structure and domain patterns that cannot be realized in conventional heterostructures, offering a unique opportunity to observe emergent phenomena.

[1]  J. Lin,et al.  Epitaxial-Strain Effects on Electronic Structure and Magnetic Properties of Hexagonal YMnO3 Thin Films Studied by Femtosecond Spectroscopy , 2013 .

[2]  Sushil Auluck,et al.  Room temperature nanoscale ferroelectricity in magnetoelectric GaFeO3 epitaxial thin films. , 2013, Physical review letters.

[3]  A. Sawa,et al.  Strain‐Mediated Phase Control and Electrolyte‐Gating of Electron‐Doped Manganites , 2011, Advanced materials.

[4]  H. Hwang,et al.  Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface , 2011, 1108.3150.

[5]  J. Mannhart,et al.  Coexistence of magnetic order and two-dimensional superconductivity at LaAlO3/SrTiO3 interfaces , 2011, 1105.0235.

[6]  Philippe Ghosez,et al.  Interface Physics in Complex Oxide Heterostructures , 2011 .

[7]  Philippe Ghosez,et al.  Engineering multiferroism in CaMnO3. , 2008, Physical review letters.

[8]  Y. L. Zhou,et al.  Elaboration and optical properties of GaFeO3 thin films , 2008 .

[9]  S. Cheong,et al.  Giant magneto-elastic coupling in multiferroic hexagonal manganites , 2008, Nature.

[10]  N. Reyren,et al.  Superconducting Interfaces Between Insulating Oxides , 2007, Science.

[11]  W. G. van der Wiel,et al.  Magnetic effects at the interface between non-magnetic oxides. , 2007, Nature materials.

[12]  M. Blamire,et al.  Epitaxial and oriented YMnO3 film growth by pulsed laser deposition , 2004 .

[13]  Nicola A. Spaldin,et al.  The origin of ferroelectricity in magnetoelectric YMnO3 , 2004, Nature materials.

[14]  Akira Ohtomo,et al.  A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface , 2004, Nature.

[15]  N. N. Batalov,et al.  Transport Properties of Ca1 – xMnO3 – δ + xCeO2(0 < x ≤ 0.15) Mixtures , 2002 .

[16]  M. Fiebig,et al.  Observation of coupled magnetic and electric domains , 2002, Nature.

[17]  M. Hervieu,et al.  Colossal Magnetoresistance Manganite Perovskites: Relations between Crystal Chemistry and Properties , 1998 .

[18]  Cheong,et al.  Low temperature magnetoresistance and the magnetic phase diagram of La1-xCaxMnO3. , 1995, Physical review letters.