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Title: Electronic phase separation and magnetic-field-induced phenomena in molecular multiferroic ( ND 4 ) 2 FeCl 5 · D 2 O

Journal Article · · Physical Review B
ORCiD logo [1]; ORCiD logo [1];  [2];  [2]; ORCiD logo [1]; ORCiD logo [1];  [1];  [3]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
+ Show Author Affiliations

Electronic phase separation has been increasingly recognized as an important phenomenon in understanding many of the intriguing properties displayed in transition metal oxides. It is believed to produce fascinating functional properties in otherwise chemically homogenous electronic systems, e.g., colossal magnetoresistance manganites and high-Tc cuprates. While many well-known electronically phase-separated systems are oxides, it has been argued that the same phenomenon should occur in other electronic systems with strong competing interactions. Here we report the observation of electronic phase separation in molecular (ND4)2FeCl5 • D2O, a type-II multiferroic. We show that two magnetic phases, one of which is commensurate and the other of which is incommensurate, coexist in this material. Here, their evolution under applied magnetic field produces emergent properties. In particular, our measurements reveal a field-induced exotic state linked to a direct transition from a paraelectric/paramagnetic phase to a ferroelectric/antiferromagnetic phase, a collective phenomenon that hasn't been seen in other magnetic multiferroics.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1465065
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 5 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials journal July 2016
Magnetic phase transition in pure α Fe2O3 journal May 1969
Colossal magnetoresistant materials: the key role of phase separation journal April 2001
Evidence for stripe correlations of spins and holes in copper oxide superconductors journal June 1995
Charge-ordered ferromagnetic phase in La0.5Ca0.5MnO3 journal December 2002
Electronically soft phases in manganites journal February 2005
Frustration-induced nanometre-scale inhomogeneity in a triangular antiferromagnet journal January 2014
Multiferroics: a magnetic twist for ferroelectricity journal January 2007
Magnetically-induced ferroelectricity in the (ND4)2[FeCl5(D2O)] molecular compound journal September 2015
Emerging single-phase state in small manganite nanodisks journal August 2016
Thermodynamic properties of the new multiferroic material (NH 4 ) 2 [FeCl 5 (H 2 O)] journal December 2013
Ultrasonic Behavior near the Spin-Flop Transitions of Hematite journal August 1969
Spin-flop transition in uniaxial antiferromagnets: Magnetic phases, reorientation effects, and multidomain states journal March 2007
Understanding magnetic interactions in the series A 2 Fe X 5 ⋅ H 2 O ( A = K , Rb; X = Cl , Br). I. Spin densities by polarized neutron diffraction and DFT calculations journal August 2008
Phase separation and electrical switching between two isosymmetric multiferroic phases in tensile strained BiFeO 3 thin films journal April 2014
Tracking the continuous spin-flop transition in Ni 3 TeO 6 by infrared spectroscopy journal October 2015
Spin-lattice coupling mediated multiferroicity in ( ND 4 ) 2 FeCl 5 · D 2 O journal December 2016
Magnetic-field-induced change of magnetoelectric coupling in the hybrid multiferroic ( N D 4 ) 2 [ FeC l 5 · D 2 O ] journal May 2017
Electronic Phase Separation in the Slightly Underdoped Iron Pnictide Superconductor Ba 1 − x K x Fe 2 As 2 journal March 2009
Nanoscale Electronic Order in Iron Pnictides journal March 2010
High- T c Ferroelectricity Emerging from Magnetic Degeneracy in Cupric Oxide journal January 2011
Theory of High-Temperature Multiferroicity in Cupric Oxide journal June 2011
Competing Ferri- and Antiferromagnetic Phases in Geometrically Frustrated LuFe 2 O 4 journal January 2012
Origin of Ferroelectricity in High- T c Magnetic Ferroelectric CuO journal May 2012
Simultaneous Structural, Magnetic, and Electronic Transitions in La 1 − x Ca x Mn O 3 with x = 0.25   and   0.50 journal December 1995
Classifying multiferroics: Mechanisms and effects journal March 2009
Complexity in Strongly Correlated Electronic Systems journal July 2005
Phase Separation Scenario for Manganese Oxides and Related Materials journal March 1999

Cited By (3)

Magnetic field-temperature phase diagram of multiferroic (NH4)2FeCl5·H2O journal August 2019
First-principles study of the structural, electronic, magnetic, and ferroelectric properties of a charge-ordered iron( ii )-iron( iii ) formate framework journal September 2019
First-principles study of the structural, electronic, magnetic and ferroelectric properties of a charge ordered Iron(II)- Iron(III) formate framework text January 2019

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