Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Magnetic transitions and magnetocaloric effect of Gd4Nd1Si2Ge2

Journal Article · · Journal of Alloys and Compounds
 [1];  [1];  [2];  [3];  [4];  [5]
  1. Northeastern Univ., Shenyang (China)
  2. Beijing Inst. of Technology (China)
  3. Univ. of Science and Technology Beijing (China)
  4. Northern Illinois Univ., DeKalb, IL (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
+ Show Author Affiliations

In this work, crystal structure and magnetic properties of the quaternary Gd4Nd1Si2Ge2 compound were investigated using synchrotron X-ray diffraction and magnetic measurements. The compound crystallized into an orthorhombic structure in the temperature range 200-300 K. In zero field cooling, the compound undergoes a spin reorientation following a ferromagnetic-like transition at 276 K. The spin reorientation is hinted at by nonlinear changes of lattice parameters but is suppressed in a high magnetic field of 6 T. Magnetic measurements revealed a magnetocaloric effect with a high relative cooling power. It is suggested that Nd substitution for Gd enlarges magnetic anisotropy and induces a canted spin structure.

Research Organization:
Argonne National Laboratory (ANL); Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
Ministry of Science and Technology of the Republic of China (MOST); National Natural Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1756159
Journal Information:
Journal of Alloys and Compounds, Journal Name: Journal of Alloys and Compounds Vol. 826; ISSN 0925-8388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Magnetic field-induced changes of lattice parameters and thermal expansion behavior of the CoMnSi compound journal October 2015
Magnetocaloric effect in strong magnetic fields journal February 1990
Itinerant electron metamagnetism and magnetocaloric effect in Dy(Co,Si)2 journal July 2003
Structure dependence of magnetic properties of Nd5Si4−xGex (x=1.2 and 2) journal January 2003
The nonpareil R5(SixGe1−x)4 phases journal May 2000
Crystal structure and phase relationships in the pseudobinary system Nd5Si4–Nd5Ge4 journal November 2002
Phase relationships and crystallography in the pseudobinary system Gd5Si4Gd5Ge4 journal September 1997
Linear microstructural features in R5(Si,Ge)4-type alloys: Difficulties in identification journal February 2008
Thirty years of near room temperature magnetic cooling: Where we are today and future prospects journal September 2008
Evidence for a short-range chemical order of Ge atoms and its critical role in inducing a giant magnetocaloric effect in Gd5Si1.5Ge2.5 journal November 2019
Magnetocaloric effect: From materials research to refrigeration devices journal April 2018
On the nature of the magnetocaloric effect of the first-order magnetostructural transition journal September 2012
Phase Transformation Driven by Valence Electron Concentration:  Tuning Interslab Bond Distances in Gd 5 Ga x Ge 4 - x journal December 2003
Gd 5 Si 4− x P x : Targeted Structural Changes through Increase in Valence Electron Count journal February 2009
Complex rare-earth tetrelides, RE 5 (Si x Ge 1−x ) 4 : New materials for magnetic refrigeration and a superb playground for solid state chemistry journal January 2006
Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from ∼20 to ∼290 K journal June 1997
Magnetocaloric effect in Tb5(SixGe1−x)4 journal August 2001
The giant magnetocaloric effect of optimally prepared Gd5Si2Ge2 journal April 2003
Griffiths-like behavior in Ge-rich magnetocaloric compounds Gd5(SixGe1−x)4 journal August 2010
Tuning the structural and magnetocaloric properties of Gd 5 Si 2 Ge 2 with Nd substitution journal January 2015
Charge transfer-tuned magnetism in Nd-substituted Gd 5 Si 4 journal December 2018
Correlation between crystal structure and magnetic properties of Gd 5 (Si x Ge 1- x ) 4 compounds journal January 2000
Crystal structures, phase relationships, and magnetic phase transitions of R 5 M 4 compounds ( R = rare earths, M = Si, Ge) journal September 2013
Evidence for a coupled magnetic-crystallographic transformation in Nd 5 ( Si 0.6 Ge 0.4 ) 4 journal December 2004
Electron correlation effects on the magnetostructural transition and magnetocaloric effect in Gd 5 Si 2 Ge 2 journal April 2006
Crystallography, anisotropic metamagnetism, and magnetocaloric effect in Tb 5 Si 2.2 Ge 1.8 journal January 2007
Magnetostructural transition in Gd 5 Si 0.5 Ge 3.5 : Magnetic and x-ray powder diffraction measurements, and theoretical calculations journal January 2008
Giant Magnetocaloric Effect in Gd5(Si2Ge2) journal June 1997
Making and Breaking Covalent Bonds across the Magnetic Transition in the Giant Magnetocaloric Material Gd 5 ( Si 2 Ge 2 ) journal May 2000
Observation of a Griffiths-like Phase in the Magnetocaloric Compound Tb 5 Si 2 Ge 2 journal April 2006
Role of Ge in Bridging Ferromagnetism in the Giant Magnetocaloric Gd 5 ( Ge 1 − x Si x ) 4 Alloys journal June 2007

Similar Records

Related Subjects

36 MATERIALS SCIENCE
Crystal structure
Rare earth compound
X-ray diffraction
magnetocaloric effect
magnetostriction