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Title: Pressure-induced modifications of the magnetic order in the spin-chain compound C a 3 C o 2 O 6

Journal Article · · Physical Review B
 [1];  [2];  [1];  [1];  [1];  [3];  [3];  [4];  [5];  [6];  [1];  [3];  [3]
  1. Joint Inst. for Nuclear Research, Dubna (Russia)
  2. Duy Tan Univ., Da Nang (Vietnam)
  3. Univ. of South Florida, Tampa, FL (United States)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  5. Azerbaijan National Academy of Sciences, Baku (Azerbaijan)
  6. Hankuk Univ. of Foreign Studies, Yongin (South Korea)

The structural and magnetic properties of the Ca3Co2O6 spin-chain compound have been studied by means of neutron and x-ray powder diffraction at pressures up to 6.8 and 32 GPa, respectively. A suppression of the initial spin-density wave state (TN = 25 K) and stabilization of the collinear commensurate antiferromagnetic (AFM) state at high pressures (TNC = 26 K at P = 2.1 GPa) were observed. The pressure behavior of the competing intra- and interchain magnetic interactions was analyzed on the basis of obtained structural data and their role in the formation of the magnetic phase diagram is discussed. Here, the pressure behavior of the Néel temperature of the commensurate AFM phase was evaluated within the mean field theory approach and a good agreement with the experimental value dTNC/dP = 0.65 K/GPa was obtained.

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; Russian Foundation for Basic Research; Vietnam National Foundation for Science and Technology Development (NAFOSTED)
Grant/Contract Number:
FG02-07ER46438; 18-02-00359-a; 103.02-2017.364
OSTI ID:
1609899
Alternate ID(s):
OSTI ID: 1478593
Journal Information:
Physical Review B, Vol. 98, Issue 13; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (2)

Origin of Ising magnetism in Ca$_3$Co$_2$O$_6$ unveiled by orbital imaging text January 2019
Origin of Ising magnetism in Ca3Co2O6 unveiled by orbital imaging journal November 2019

Figures / Tables (8)