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Title: Strain-induced dimensionality crossover of precursor modulations in Ni2MnGa

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4906333· OSTI ID:1242401
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [3];  [3]
  1. Beijing Inst. of Technology, Beijing (China)
  2. Univ. of Science and Technology Beijing (China)
  3. Pennsylvania State Univ., University Park, PA (United States)
  4. Carnegie Inst. of Washington, Argonne, IL (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. General Research Inst. for Nonferrous Metals, Beijing (China)
  7. Carnegie Inst. of Washington, Argonne, IL (United States); Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (China)

Precursor modulations often occur in functional materials like magnetic shape memory alloys, ferroelectrics, and superconductors. In this letter, we have revealed the underlying mechanism of the precursor modulations in ferromagnetic shape memory alloys Ni2MnGa by combining synchrotron-based x-ray diffraction experiments and first-principles phonon calculations. We discovered the precursor modulations along [011] direction can be eliminated with [001] uniaxial loading, while the precursor modulations or premartensite can be totally suppressed by hydrostatic pressure condition. The TA2 phonon anomaly is sensitive to stress induced lattice strain, and the entire TA2 branch is stabilized along the directions where precursor modulations are eliminated by external stress. Furthermore, our discovery bridges precursor modulations and phonon anomalies, and sheds light on the microscopic mechanism of the two-step superelasticity in precursor martensite.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); National Basic Research Program of China; Argonne National Laboratory, Advanced Photon Source
Grant/Contract Number:
AC02-06CH11357; 2012CB619405; DMR-1006557; DMR-1310289; SC0001057; NA0001974; FG02-99ER45775
OSTI ID:
1242401
Alternate ID(s):
OSTI ID: 1226695
Journal Information:
Applied Physics Letters, Vol. 106, Issue 2; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

References (29)

Precursor effects and premartensitic transformation in Ni 2 MnGa journal December 1996
Premartensitic phenomena and other phase transformations in Ni–Mn–Ga alloys studied by dynamical mechanical analysis and electron diffraction journal January 2002
TEM investigation of intermediate phase transformation and micromodulation in Ni–Mn–Ga ferromagnetic shape memory alloys journal August 2008
Large negative magnetoresistance in a ferromagnetic shape memory alloy: Ni2+xMn1−xGa journal May 2005
Ultrahigh Strength and High Electrical Conductivity in Copper journal April 2004
The crystal structure and phase transitions of the magnetic shape memory compound Ni2MnGa journal October 2002
Transformation behaviour of a Ti 50 Ni 47 Fe 3 alloy I. Premartensitic phenomena and the incommensurate phase journal January 1983
Understanding the Phase Transitions of the Ni 2 MnGa Magnetic Shape Memory System from First Principles journal January 2009
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Combined Experimental and Theoretical Investigation of the Premartensitic Transition in Ni 2 MnGa journal April 2008
Physical metallurgy of Ti–Ni-based shape memory alloys journal July 2005
Stress-assisted reversible magnetic field-induced phase transformation in Ni2MnGa magnetic shape memory alloys journal August 2006
On the interpretation of high resolution electron microscopy images of premartensitic microstuctures in the Ni-Al β2 Phase journal March 1990
Multiscale origin of the magnetocaloric effect in Ni-Mn-Ga shape-memory alloys journal September 2003
Disorder-driven pretransitional tweed pattern in martensitic transformations journal July 1995
Premartensitic Transition Driven by Magnetoelastic Interaction in bcc Ferromagnetic Ni 2 MnGa journal November 1997
First-principles investigation of phonon softenings and lattice instabilities in the shape-memory system Ni 2 MnGa journal October 2003
Large magnetic‐field‐induced strains in Ni 2 MnGa single crystals journal September 1996
Strain-induced dimensionality crossover and associated pseudoelasticity in the premartensitic phase of Ni2MnGa journal October 2010
Premartensitic phenomena in the ferro- and paramagnetic phases of Ni 2 MnGa journal December 1997
Origin of Magnetic and Magnetoelastic Tweedlike Precursor Modulations in Ferroic Materials journal May 2004
A mixed-space approach to first-principles calculations of phonon frequencies for polar materials journal April 2010
Hidden order in the cuprates journal January 2001
Symmetry-adaptive ferroelectric mesostates in oriented Pb(BI[sub 1/3]BII[sub 2/3])O[sub 3]–PbTiO[sub 3] crystals journal January 2000
Adaptive phase formation in martensitic transformation journal May 1991
A new phase induced in Ni2MnGa by uniaxial stress journal February 2006
Adaptive Modulations of Martensites journal April 2010
Multiferroic and magnetoelectric materials journal August 2006
Giant Nonhysteretic Responses of Two-Phase Nanostructured Alloys journal March 2011

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