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Title: Evidence of long-range ferromagnetic order and spin frustration effects in the double perovskite La 2 CoMnO 6

Journal Article · · Physical Review B
 [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4]
  1. Univ. of South Florida, Tampa, FL (United States)
  2. Duy Tan Univ., Da Nang (Vietnam)
  3. Joint Inst. for Nuclear Research, Dubna (Russia)
  4. Yale Univ., New Haven, CT (United States)

We present a comprehensive study on the magnetic structure, dynamics, and phase evolution in the single phase double perovskite La2CoMnO6. The mixed valence state due to oxygen deficiency is verified by x-ray photoelectron spectroscopy and confirms a double ferromagnetic transition observed in dc magnetization. Neutron diffraction reveals that the magnetic structure is dominated by long-range ferromagnetic ordering, which is further corroborated by a critical exponents analysis of the paramagnetic to ferromagnetic phase transition. An analysis of the magnetization dynamics by means of linear and nonlinear ac magnetic susceptibilities marks the presence of two distinct cluster-glass-like states that emerge at low temperatures. The isothermal entropy change as a function of temperature and magnetic field (H) is exploited to investigate the mechanism of stabilization of the magnetic phases across the H – T phase diagram. In the regime of the phase diagram where thermal energy is sufficiently low, regions of competing interactions due to local disorder become stabilized and display glasslike dynamics. The freezing mechanism of clusters is illustrated using a unique probe of transverse susceptibility that isolates the effects of the local anisotropy of the spin clusters. Here, the results are summarized in a H – T phase diagram of La2CoMnO6 from these data.

Research Organization:
Univ. of South Florida, Tampa, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Vietnam National Foundation for Science and Technology Development (NAFOSTED)
Grant/Contract Number:
FG02-07ER46438; 103.02-2017.364
OSTI ID:
1609900
Alternate ID(s):
OSTI ID: 1504549
Journal Information:
Physical Review B, Vol. 99, Issue 10; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

References (60)

Detailed Magnetic Behavior of Nickel Near its Curie Point journal December 1964
Evidence of large magneto-dielectric effect coupled to a metamagnetic transition in Yb 2 CoMnO 6 journal July 2015
Review of the magnetocaloric effect in manganite materials journal January 2007
Evidence of bidomain structure in double-perovskite La2CoMnO6 thin films journal May 2007
Impact of Co Mn cation ordering on phonon anomalies in La 2 Co Mn O 6 double perovskites: Raman spectroscopy journal October 2007
Magnetic Interactions in the Double Perovskites R 2 NiMnO 6 (R = Tb, Ho, Er, Tm) Investigated by Neutron Diffraction journal October 2015
Review of the Magnetocaloric Effect in Manganite Materials journal February 2007
Static critical phenomena in ferromagnets with quenched disorder journal November 1985
On the models for interparticle interactions in nanoparticle assemblies: comparison with experimental results journal June 1999
Colossal magnetoresistance in the double perovskite oxide La2CoMnO6 journal May 2010
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Domain-wall dynamics in aligned bound Sm 2 Fe 17 journal June 1996
B-cation arrangements in double perovskites journal January 1993
In-plane and out-of-plane transverse susceptibility in close-packed arrays of monodisperse Fe nanoparticles journal December 2003
The influence of a minority magnetic phase on the field dependence of the magnetocaloric effect journal May 2009
Analysis of the phase transition and magneto-thermal properties in La 2 CoMnO 6 single crystals journal August 2014
Effect of cation disorder on structural, magnetic and dielectric properties of La 2 MnCoO 6 double perovskite journal November 2011
DN-12 time-of-flight high-pressure neutron spectrometer for investigation of microsamples journal April 1999
Chemical Inhomogeneities and Square B‐H Loops journal August 1965
Susceptibility of the Cu Mn spin-glass: Frequency and field dependences journal February 1981
Magnetocapacitance and Magnetoresistance Near Room Temperature in a Ferromagnetic Semiconductor: La2NiMnO6. journal November 2005
Phase separation and the effect of quenched disorder in Pr 0.5 Sr 0.5 MnO 3 journal June 2008
Effect of oxygen concentration on the magnetic properties of La2CoMnO6 thin films journal November 2007
Multiple magnetic phases of La 2 CoMnO 6 δ ( 0 <~ δ <~ 0 . 0 5 ) journal January 2003
Valence states and metamagnetic phase transition in partially B -site-disordered perovskite Eu Mn 0.5 Co 0.5 O 3 journal March 2008
A2B′B″O6 perovskites: A review journal May 2015
High resolution diffraction and small angle scattering neutron investigations of LaCo0.5Mn0.5O3+ δ: effect of oxygen content journal December 2007
Bond-valence parameters obtained from a systematic analysis of the Inorganic Crystal Structure Database journal August 1985
Influence of the cationic ordering in the dielectric properties of the La2MnCoO6 perovskite journal October 2009
Multiferroic behavior in the double-perovskite Lu 2 MnCoO 6 journal October 2011
Universal behavior for magnetic entropy change in magnetocaloric materials: An analysis on the nature of phase transitions journal June 2010
Spin glass behaviour in ferromagnetic La 2 CoMnO 6 perovskite manganite journal February 2002
Magnetocapacitance and Magnetoresistance Near Room Temperature in a Ferromagnetic Semiconductor: La2NiMnO6 journal September 2005
Magnetic properties of double perovskite La2BMnO6 (B = Ni or Co) nanoparticles journal January 2013
A universal curve for the magnetocaloric effect: an analysis based on scaling relations journal June 2008
Ferromagnetic interactions in non-metallic perovskites journal December 1965
Approximate Equation of State For Nickel Near its Critical Temperature journal October 1967
Cation ordering in perovskites journal January 2010
The CTM4XAS program for EELS and XAS spectral shape analysis of transition metal L edges journal October 2010
Magnetic order and magnetoelectric properties of R 2 CoMn O 6 perovskites ( R = Ho , Tm, Yb, and Lu) journal July 2017
Critical phenomenon of the near room temperature skyrmion material FeGe journal February 2016
Magnetodielectric effect in double perovskite La2CoMnO6 thin films journal July 2007
X-ray absorption and emission spectroscopy study of Mn and Co valence and spin states in TbM n 1 x C o x O 3 journal October 2016
Spin glasses: Some recent experiments journal December 1986
Macroscopic phase diagram and magnetocaloric study of metamagnetic transitions in the spin chain system Ca 3 Co 2 O 6 journal April 2014
Growth of epitaxial thin films of the ordered double perovskite La2NiMnO6 on different substrates journal July 2006
Synthesis, structural, magnetic and phase-transition studies of the ferromagnetic La 2 CoMnO 6 double perovskite by symmetry-adapted modes journal January 2015
Size-dependent magnetic properties and Raman spectra of La2NiMnO6 nanoparticles journal December 2009
Reentrant cluster glass behavior in La 2 CoMnO 6 nanoparticles journal April 2013
The interpretation of XPS spectra: Insights into materials properties journal June 2013
Magnetic properties of LaNi $\scriptstyle \mathsf {}$ 1- x Mn $\scriptstyle \mathsf {}$ x O $\scriptstyle \mathsf {}$ 3+δ perovskites journal December 2002
The theory of the Vogel-Fulcher law of spin glasses journal October 1981
AC Susceptibility Studies of Phase Transitions and Magnetic Relaxation: Conventional, Molecular and Low-Dimensional Magnets journal December 2013
Universality in the entropy change for the inverse magnetocaloric effect journal April 2013
Interfacial room temperature magnetism and enhanced magnetocaloric effect in strained La 0.66 Ca 0.34 MnO 3 / BaTiO 3 heterostructures journal July 2017
Critical Behavior and Macroscopic Phase Diagram of the Monoaxial Chiral Helimagnet Cr1/3NbS2 journal July 2017
Heisenberg-like ferromagnetism in 3 d 4 f intermetallic La 0.75 Pr 0.25 Co 2 P 2 with localized Co moments journal November 2014
Ferromagnetic interactions in non-metallic perovskites journal August 1965
Phase separation and the effect of quenched disorder in $Pr_{0.5}Sr_{0.5}MnO_3$ text January 2008
Reentrant cluster glass behavior in La2CoMnO6 nanoparticles text January 2013

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