Magnetic sensor, magnetic head and magnetic recording device

A magnetic sensor, comprising:

• a detection section,
• the detection section including:
• a first shield;
• a second shield;
• a third shield;
• a fourth shield, a second direction from the third shield to the fourth shield crossing a first direction from the first shield to the second shield;
• a first magnetic member provided between the first shield and the second shield and between the third shield and the fourth shield;
• a first conductive member provided between the first shield and the first magnetic member, the first conductive member being non-magnetic;
• a second conductive member provided between the second shield and the first magnetic member, the second conductive member being non-magnetic;
• a third conductive member provided between the third shield and the first magnetic member, the third conductive member being non-magnetic;
• and
• a fourth conductive member provided between the fourth shield and the first magnetic member, the fourth conductive member being non-magnetic,
• at least one of the first conductive member, the second conductive member, the third conductive member, or the fourth conductive member including at least one of a first material or a second material,
• the first material including at least one selected from the group consisting of β-Ta, β-Mo, and β-W, and
• the second material including Bi.