Table 3 EFG parameters in the rare- earth and chromium sites for the orthorhombic RCrO3. Data on (Gd, Nd, La)CrO3 using the 181Hf parent probe was taken from refs. 50,51.

From: Local inhomogeneous state in multiferroic SmCrO3

Sample

R-site

Cr-site

 

Vzz (V/Å2)

η ( ± 0.05)

Vzz (V/Å2)

η ( ± 0.05)

Probe Cd/Taa

Symbol

 

Refs.

YbCrO3

64.0(3)

0.22

48.0(3)

0.76

ab-initiob

84(2)

0.06

  

111In

 

88(3)

0.00

  

111mCd

 

ErCrO3

81.0(3)

0.22

26.0(3)

0.84

ab-initio

80(2)

0.10

  

111In

 

87(3)

0.00

  

111mCd

 

HoCrO3

70.0(3)

0.15

17.0(3)

0.83

ab-initiob

YCrO3

71.0(3)

0.29

30.0(3)

0.92

ab-initiob

81(2)

0.11

  

111In

 

80(3)

0.20

  

111mCd

 

GdCrO3

70.0(3)

0.10

24.0(3)

0.96

ab-initiob

  

24(4)

0.62

181Hf

 

50,51

SmCrO3

52.0(3)

0.03

26.0(3)

0.77

ab-initiob

76(2)

0.23

  

111In

 

75(3)

0.31

  

111mCd

 

NdCrO3

60.0(3)

0.40

17.0(3)

0.87

ab-initiob

  

15(4)

0.73

181Hf

 

50,51

LaCrO3

53.0(3)

0.40

8.0(3)

0.98

ab-initiob

75(2)

0.47

16(4)

1.0

111In

53

  

13(4)

0.73

181Hf

 

50,51

  1. a111In and 111mCd isotopes decay to the same PAC probe nuclear state (Cd), while 181Hf decays to 181Ta. All PAC measurements are performed in the final, daughter state.
  2. bab-initio values are scaled by the respective Sternheimer anti-shielding ratio factors as explained in the text. A relative uncertainty of ~0.5% is attributed at the DFT estimated values due to the convergence criteria used in the calculation. The value is taken by overestimation.