Heinrich Rohrer

Heinrich Rohrer was a scientist from Switzerland. He liked to study how things work. He made a tool to see very tiny things. This tool was a special microscope. He won a big prize for this work. He had to work at night sometimes. His tools felt even small shakes from the city. He worked at a place called IBM. He also studied how magnets work. He was a very smart man.

Heinrich Rohrer was a physicist from Switzerland. A physicist is a scientist who studies how the world works. He was born in 1933 in a place called Buchs. He grew up in the country before moving to Zürich.

Rohrer did very careful work. He studied how certain materials act near very cold temperatures. His tools were so sensitive to shakes. He had to do his work at night. He did this so the city would be quiet. This helped his measurements stay steady.

Later, he worked at an IBM lab. He spent many years working on a special tool. This tool is a scanning tunneling microscope. It helps scientists see very tiny things. He designed it with Gerd Binnig.

This work was very important. In 1986, he won the Nobel Prize in Physics. This is a very big prize for science. He shared the prize with Binnig and Ernst Ruska.

Rohrer was also a leader at IBM. He led their physics department for two years. He lived in Switzerland for his whole life. He died in 2013 at the age of 79.

Heinrich Rohrer was a famous Swiss physicist. He spent his life studying how the physical world works. He is best known for helping to invent a special tool. This tool is called the scanning tunneling microscope, or STM. It allows scientists to see things that are very tiny. This invention changed how we look at the smallest parts of our world.

To understand his work, think about how hard it is to stay still. When Rohrer was a student, his tools were very sensitive. They could feel even the tiniest shakes or vibrations. Because of this, he often did his research at night. He waited until the city was asleep and quiet. This helped his measurements stay steady and true.

Rohrer had a long and busy career in science. He was born in Buchs, Switzerland, in 1933. He studied at the Swiss Federal Institute of Technology. Later, he joined the IBM Research Laboratory in Rüschlikon in 1963. He worked there for many years. He even led the physics department at IBM from 1986 to 1988.

His most famous work led to a very big honor. In 1986, he won the Nobel Prize in Physics. He shared this prize with Gerd Binnig. They won it for designing the STM. Ernst Ruska also received a share of the prize. This award is one of the highest honors in science.

Many people remember his name through special awards today. The Heinrich Rohrer Medal is given out every three years. This medal is presented by the Surface Science Society of Japan. Other groups like IBM Research help give it too. This keeps his memory alive in the world of science. He passed away in 2013 at his home in Wollerau.

Heinrich Rohrer was a highly influential Swiss physicist. He spent his career exploring the fundamental properties of the physical world. Rohrer is most famous for his work in microscopy. Specifically, he helped design the scanning tunneling microscope, known as the STM. This device allowed scientists to see and interact with matter at the atomic level. His invention fundamentally changed the field of nanotechnology and surface science.

The STM works by using a very sharp probe to scan a surface. This process relies on a phenomenon called quantum tunneling. In the STM, a tiny tip moves incredibly close to a sample. An electrical current flows between the tip and the surface. This current happens because electrons can "tunnel" through a small gap. By measuring this current, the microscope can map the tiny bumps and shapes of atoms. This mechanism allows for a level of detail that light microscopes cannot achieve.

Rohrer's journey in physics began in Switzerland. He was born in Buchs, St. Gallen, on June 6, 1933. He grew up in the countryside before moving to Zürich in 1949. In 1951, he enrolled at the Swiss Federal Institute of Technology, also known as ETH. There, he studied under famous scientists like Wolfgang Pauli and Paul Scherrer. His early research involved cryogenic engineering, which is the study of very low temperatures. He specifically measured how superconductors change length during a magnetic-field-induced transition.

During his doctoral studies, Rohrer learned the importance of precision. His measurements were extremely sensitive to any movement. Even the tiny vibrations of a city could ruin his data. To solve this, he conducted most of his research at night. He waited until the city was asleep to ensure a quiet environment. This discipline helped him master the delicate nature of experimental physics. His studies were later interrupted by his service in the Swiss mountain infantry.

In 1963, Rohrer joined the IBM Research Laboratory in Rüschlikon. He worked under the direction of Ambros Speiser. His early years at IBM involved studying Kondo systems. These systems involve how magnetic impurities affect the electrical resistance of metals. He also studied magnetic phase diagrams and critical phenomena. In 1974, he took a sabbatical year at the University of California, Santa Barbara. During this time, he studied nuclear magnetic resonance with researchers Vince Jaccarino and Alan King.

Rohrer's most significant achievement arrived in the mid-1980s. He worked on the development of the STM until 1982. For this work, he was awarded the Nobel Prize in Physics in 1986. He shared the prize with Gerd Binnig, who co-designed the microscope. The third recipient of the prize was Ernst Ruska. In 1986, Rohrer was also appointed as an IBM Fellow. He served as the leader of the physics department at IBM from 1986 to 1988.

Today, Rohrer's legacy is honored through several scientific channels. The Heinrich Rohrer Medal is awarded every three years. This medal is presented by the Surface Science Society of Japan. IBM Research – Zurich and the Swiss Embassy in Japan also participate. Ms. Rohrer also helps present the medal in his memory. This award recognizes excellence in the field he helped build. Rohrer passed away at his home in Wollerau, Switzerland, in 2013 at the age of 79.