Table 1 (REX)n(MX2) heterostructures synthesized in this work.

From: Unprecedented generation of 3D heterostructures by mechanochemical disassembly and re-ordering of incommensurate metal chalcogenides

Material

As-milled (Å)a

As-milled a1/a2

Annealed (Å)a

Annealed a1/a2

Lit.19,20,26 (Å)a

Lit.19,20,26 a1/a2

(SmS)(TaS2)

a1 = 5.540(1)

1.689

a1 = 5.556(1)

1.685

  

a2 = 3.279(1)

 

a2 = 3.297(1)

   

b = 5.678(1)

 

b = 5.675(1)

 

b

b

c = 22.514(3)

 

c = 22.509(3)

   

(SmS)1.19(TaS2)

  

a1 = 5.549(1)

1.675

a1 = 5.552(3)

1.686

  

a2 = 3.311(1)

 

a2 = 3.293(1)

 

c

c

b = 5.669(1)

 

b = 5.679(4)

 
  

c = 22.477(3)

 

c = 22.50(4)

 

(LaSe)(NbSe2)

  

a1 = 6.025(1)

1.756

  
  

a2 = 3.431(1)

   

c

c

b = 6.075(1)

 

b

b

  

c = 24.039(1)

   

(LaSe)1.14(NbSe2)

  

a1 = 5.952(1)

1.722

a1 = 6.016(3)

1.755

  

a2 = 3.457(1)

 

a2 = 3.428(3)

 

c

c

b = 6.083(1)

 

b = 6.070(3)

 
  

c = 24.075(1)

 

c = 24.072(3

 

(LaSe)(TaS2)

a1 = 5.558(5)

1.620

a1 = 5.579(1)

1.640

  

a2 = 3.430(4)

 

a2 = 3.401(1)

   

b = 5.616(6)

 

b = 5.617(1)

 

b

b

c = 23.337(11)

 

c = 23.422(1)

   

(LaSe)1.09(TaS2)

  

a1 = 5.574(1)

1.629

  
  

a2 = 3.421(1)

   

 c

 c

b = 5.585(1)

 

b

b

  

c = 23.321(1)

   

LaTa(Se0.5S0.5)3

  

a1 = 5.434(3)

1.587

  
  

a2 = 3.423(1)

   

c

c

b = 5.857(3)

 

b

b

  

c = 23.616(3)

   
  1. aLattice parameters; standard deviations are given within parentheses.
  2. bData are unavailable.
  3. cStructure is not refined due to strong peak broadening.
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