C

1. A magnetic recording medium comprising:

a magnetic layer formed on a nonmagnetic substrate;

a C x N y H z film formed on said magnetic layer; and

a fluorinated organic film formed on said C x N y H z film,

wherein x, y and z satisfy formulae (1) to (4) below:

0.4 <x< 0.7  (1)

0.01 <y< 0.5  (2)

0 ≦z< 0.3  (3)

x+y+z= 1,  (4)

wherein said fluorinated organic film is a film selected from the group consisting of a C a F b film, a C a F b N c film, a C a F b H d film, a C a F b N c O e film and a C a F b N c O e H d film, and

where a, b, c, d and e are natural numbers excluding zero.

2. The magnetic recording medium according to claim 1 ,

wherein said C x N y H z film has a surface with which the contact angle of water is 50° or less.

3. The magnetic recording medium according to claim 1 , further comprising a DLC film formed between said C x N y H z film and said magnetic layer.

4. The magnetic recording medium according to claim 1 ,

wherein said fluorinated organic film is an amorphous film.

5. The magnetic recording medium according to claim 1 ,

wherein each of said films has a thickness of 3 nm or less.

6. A deposition method of a C x N y H z film on a substrate to be deposited, comprising forming the C x N y H z film on the substrate by a CVD method using a gas of a vaporized starting material,

wherein said starting material is a liquid or a solid at ordinary temperature,

wherein x, y and z satisfy formulae (1) to (4) below:

0.4 <x< 0.7  (1)

0.01 <y< 0.5  (2)

0 <z< 0.3  (3)

x+y+z= 1, and  (4)

wherein said starting material is a raw material selected from the group consisting of C 4 H 2 N 2 , C 5 H 3 N 3 , C 7 H 3 N 3 , C 6 H 2 N 4 , C 5 H 2 N 4 , C 10 H 2 N 4 and C 12 H 4 N 4 .

7. A method for manufacturing a magnetic recording medium, comprising forming a fluorinated organic film on a C x N y H z film deposited by the deposition method according to claim 6 ,

wherein said substrate to be deposited has a magnetic layer formed on a nonmagnetic substrate; and

wherein said C x N y H z film has a surface with which the contact angle of water is 50° or less.

8. The method for manufacturing a magnetic recording medium according to claim 7 ,

wherein a DLC film is formed between said C x N y H z film and said magnetic layer.

9. The method for manufacturing a magnetic recording medium according to claim 7 ,

wherein said fluorinated organic film is any film of a C a F b film, a C a F b N c film, a C a F b H d film, a C a F b O e film, a C a F b O e H d film, a C a F b N c O e film and a C a F b N c O e H d film formed by a CVD method using a raw material gas;

wherein said raw material gas has an organic raw material gas containing carbon and fluorine, and

where a, b, c, d and e are natural numbers.

10. The method for manufacturing a magnetic recording medium according to claim 9 ,

wherein said organic raw material gas contains three or more carbons.

11. The method for manufacturing a magnetic recording medium according to claim 9 ,

wherein said organic raw material gas when forming said C a F b film on said C x N y H z film has at least one of C 3 F 6 , C 4 F 6 , C 6 F 6 , C 6 F 12 , C 6 F 14 , C 7 F 8 , C 7 F 14 , C 7 F 16 , C 8 F 16 , C 8 F 18 , C 9 F 18 , C 9 F 20 , C 10 F 8 , C 10 F 18 , C 11 F 20 , C 12 F 10 , C 13 F 28 , C 15 F 32 , C 20 F 42 , and C 24 F 50 ;

wherein said organic raw material gas when forming said C a F b N c film on said C x N y H z film has at least one of C 3 F 3 N 3 , C 3 F 9 N, C 5 F 5 N, C 6 F 4 N 2 , C 6 F 9 N 3 , C 6 F 12 N 2 , C 6 F 15 N, C 7 F 5 N, C 8 F 4 N 2 , C 9 F 21 N, C 12 F 4 N 4 , C 12 F 27 N, C 14 F 8 N 2 , C 15 F 33 N, C 24 F 45 N 3 , and tri(heptafluoropropyl)amine;

wherein said organic raw material gas when forming said C a F b O d film on said C x N y H z film has at least one of C 3 F 6 O, C 4 F 6 O 3 , C 4 F 8 O, C 5 F 6 O 3 , C 6 F 4 O 2 , C 6 F 10 O 3 , C 8 F 4 O 3 , C 8 F 8 O, C 8 F 8 O 2 , C 8 F 14 O 3 , C 13 F 10 O, C 13 F 10 O 3 , and C 2 F 6 O(C 3 F 6 O) n (CF 2 O) m ; and

wherein said organic raw material gas when forming said C a F b N c O d film on said C x N y H z film has C 7 F 5 NO.

12. The method for manufacturing a magnetic recording medium according to claim 9 ,

wherein perfluoroamines are used as said organic raw material gas.

13. The method for manufacturing a magnetic recording medium according to claim 9 ,

wherein the CVD method using said raw material gas is a plasma CVD method of holding said C x N y H z film by a holding electrode, disposing a counter electrode facing said C x N y H z film held by said holding electrode, and setting, to be +150 V to −150 V, a direct-current voltage in forming direct-current plasma or a direct-current voltage component in forming high-frequency plasma, by supplying electric power to one of said holding electrode and said counter electrode.

14. A method for manufacturing a magnetic recording medium comprising:

forming a C x N y H z film on a substrate to be deposited, by a CVD method using a gas of a vaporized starting material; and

forming a fluorinated organic film on said C x N y H z film,

wherein said substrate to be deposited has a magnetic layer formed on a nonmagnetic substrate;

wherein said C x N y H z film has a surface with which the contact angle of water is 50° or less,

wherein x, y and z satisfy formulae (1) to (4) below:

0.4 <x< 0.7  (1)

0.01 <y< 0.5  (2)

0 <z< 0.3  (3)

x+y+z= 1,  (4)

wherein said starting material contains C X′ N Y′ H Z′ and is a liquid or a solid at ordinary temperature, and wherein X′, Y′ and Z′ are natural numbers and satisfy formulae (5) to (8) below,

4≦ X′≦ 12  (5)

0≦ Y′≦ 4  (6)

2≦ Z′≦ 12  (7)

Y′/X′< 1.  (8)

15. The method for manufacturing a magnetic recording medium according to claim 14 ,

wherein said starting material is a raw material selected from the group consisting of C 4 H 2 N 2 , C 5 H 3 N 3 , C 7 H 3 N 3 , C 6 H 2 N 4 , C 5 H 2 N 4 , C 10 H 2 N 4 , C 12 H 4 N 4 and C 6 N 4 .

16. The method for manufacturing a magnetic recording medium according to claim 14 ,

wherein a DLC film is formed between said C x N y H z film and said magnetic layer.

17. The method for manufacturing a magnetic recording medium according to claim 14 ,

wherein said fluorinated organic film is selected from the group consisting of a C a F b film, a C a F b N c film, a C a F b H d film, a C a F b O e film, a C a F b O e H d film, a C a F b N e O e film and a C a F b N e O e H d film formed by a CVD method using a raw material gas;

wherein said raw material gas has an organic raw material gas containing carbon and fluorine, and

wherein a, b, c, d and e are natural numbers.